MBean getAttribute throw NullPointerException
Weblogic:10.3.5
JDK: 1.6.0_29 64bit
Please help me figure it out:
RuntimeException thrown by rmi server: javax.management.remote.rmi.RMIConnectionImpl.getAttribute(Ljavax.management.ObjectName;Ljava.lang.String;Ljavax.security.auth.Subject;)
<Mar 21, 2012 5:47:54 PM CET> <Warning> <RMI> <BEA-080003> <RuntimeException thrown by rmi server: javax.management.remote.rmi.RMIConnectionImpl.getAttribute(Ljavax.management.ObjectName;Ljava.lang.String;Ljavax.security.auth.Subject;)
javax.management.RuntimeMBeanException: javax.management.RuntimeMBeanException: MBean getAttribute failed: java.lang.NullPointerException.
javax.management.RuntimeMBeanException: javax.management.RuntimeMBeanException: MBean getAttribute failed: java.lang.NullPointerException
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:856)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
Truncated. see log file for complete stacktrace
Caused By: javax.management.RuntimeMBeanException: MBean getAttribute failed: java.lang.NullPointerException
at weblogic.management.jmx.modelmbean.WLSModelMBean.getAttribute(WLSModelMBean.java:553)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
at java.security.AccessController.doPrivileged(Native Method)
Truncated. see log file for complete stacktrace
Caused By: java.lang.NullPointerException
at weblogic.messaging.kernel.internal.KernelStatisticsImpl.getPagingPhysicalWriteCount(KernelStatisticsImpl.java:91)
at weblogic.jms.backend.BackEnd.getPagingPhysicalWriteCount(BackEnd.java:2195)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
Truncated. see log file for complete stacktrace
Full call stack list below:
####<Mar 21, 2012 5:47:54 PM CET> <Warning> <RMI> <server-01> <SRV1_CL1_S_JMS1> <[ACTIVE] ExecuteThread: '6' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <> <1332348474445> <BEA-080003> <RuntimeException thrown by rmi server: javax.management.remote.rmi.RMIConnectionImpl.getAttribute(Ljavax.management.ObjectName;Ljava.lang.String;Ljavax.security.auth.Subject;)
javax.management.RuntimeMBeanException: javax.management.RuntimeMBeanException: MBean getAttribute failed: java.lang.NullPointerException.
javax.management.RuntimeMBeanException: javax.management.RuntimeMBeanException: MBean getAttribute failed: java.lang.NullPointerException
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:856)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.getAttribute(WLSMBeanServerInterceptorBase.java:324)
at weblogic.management.mbeanservers.internal.JMXContextInterceptor.getAttribute(JMXContextInterceptor.java:157)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.getAttribute(WLSMBeanServerInterceptorBase.java:324)
at weblogic.management.mbeanservers.internal.SecurityInterceptor.getAttribute(SecurityInterceptor.java:299)
at weblogic.management.jmx.mbeanserver.WLSMBeanServer.getAttribute(WLSMBeanServer.java:279)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$5$1.run(JMXConnectorSubjectForwarder.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$5.run(JMXConnectorSubjectForwarder.java:324)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder.getAttribute(JMXConnectorSubjectForwarder.java:319)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1404)
at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1367)
at javax.management.remote.rmi.RMIConnectionImpl.getAttribute(RMIConnectionImpl.java:600)
at javax.management.remote.rmi.RMIConnectionImpl_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:667)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:522)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:518)
at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused By: javax.management.RuntimeMBeanException: MBean getAttribute failed: java.lang.NullPointerException
at weblogic.management.jmx.modelmbean.WLSModelMBean.getAttribute(WLSModelMBean.java:553)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.getAttribute(WLSMBeanServerInterceptorBase.java:324)
at weblogic.management.mbeanservers.internal.JMXContextInterceptor.getAttribute(JMXContextInterceptor.java:157)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.getAttribute(WLSMBeanServerInterceptorBase.java:324)
at weblogic.management.mbeanservers.internal.SecurityInterceptor.getAttribute(SecurityInterceptor.java:299)
at weblogic.management.jmx.mbeanserver.WLSMBeanServer.getAttribute(WLSMBeanServer.java:279)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$5$1.run(JMXConnectorSubjectForwarder.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$5.run(JMXConnectorSubjectForwarder.java:324)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder.getAttribute(JMXConnectorSubjectForwarder.java:319)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1404)
at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1367)
at javax.management.remote.rmi.RMIConnectionImpl.getAttribute(RMIConnectionImpl.java:600)
at javax.management.remote.rmi.RMIConnectionImpl_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:667)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:522)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:518)
at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused By: java.lang.NullPointerException
at weblogic.messaging.kernel.internal.KernelStatisticsImpl.getPagingPhysicalWriteCount(KernelStatisticsImpl.java:91)
at weblogic.jms.backend.BackEnd.getPagingPhysicalWriteCount(BackEnd.java:2195)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at weblogic.management.jmx.modelmbean.WLSModelMBean.getAttribute(WLSModelMBean.java:525)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.getAttribute(WLSMBeanServerInterceptorBase.java:324)
at weblogic.management.mbeanservers.internal.JMXContextInterceptor.getAttribute(JMXContextInterceptor.java:157)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase$12.run(WLSMBeanServerInterceptorBase.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.jmx.mbeanserver.WLSMBeanServerInterceptorBase.getAttribute(WLSMBeanServerInterceptorBase.java:324)
at weblogic.management.mbeanservers.internal.SecurityInterceptor.getAttribute(SecurityInterceptor.java:299)
at weblogic.management.jmx.mbeanserver.WLSMBeanServer.getAttribute(WLSMBeanServer.java:279)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$5$1.run(JMXConnectorSubjectForwarder.java:326)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder$5.run(JMXConnectorSubjectForwarder.java:324)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.management.mbeanservers.internal.JMXConnectorSubjectForwarder.getAttribute(JMXConnectorSubjectForwarder.java:319)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1404)
at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1367)
at javax.management.remote.rmi.RMIConnectionImpl.getAttribute(RMIConnectionImpl.java:600)
at javax.management.remote.rmi.RMIConnectionImpl_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:667)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:522)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:518)
at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
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package chapter12javaseclient;
import actionbazaar.buslogic.BidException;
import actionbazaar.persistence.Bid;
import actionbazaar.persistence.Bidder;
import actionbazaar.persistence.Item;
import java.util.HashMap;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.eclipse.persistence.config.EntityManagerProperties;
public class PlaceBidBeanJavaSE {
private static EntityManagerFactory emf;
private static EntityManager em;
public static void main(String[] args) {
String userId= "idiot";
Long itemId = new Long (1);
Double bidPrice = 2001.50;
try {
if (emf == null){
emf = Persistence.createEntityManagerFactory("actionBazaar");
System.out.println("EntityManagerFactory created!");
getEntityManager();
System.out.println("EntityManager created!");
addBid(userId,itemId,bidPrice);
commitTransaction();
} finally {
// close the EntityManager when done
em.close();
emf.close();
private static void getEntityManager() {
HashMap emProps = new HashMap();
emProps.put(EntityManagerProperties.JDBC_USER, "ab");
emProps.put(EntityManagerProperties.JDBC_PASSWORD, "ab");
System.out.println("Creating entity manager");
em = emf.createEntityManager(emProps);
em.getTransaction().begin();
private static void commitTransaction() {
em.getTransaction().commit();
private static Long addBid(String userId, Long itemId, Double bidPrice) throws BidException {
Item item = em.find(Item.class,itemId);
if (item == null)
throw new BidException("Invalid Item Id");
Bidder bidder = em.find(Bidder.class,userId);
if (bidder == null)
throw new BidException("Invalid Bidder Id");
Bid bid = new Bid();
bid.setItem(item);
bid.setBidBidder(bidder);
bid.setBidPrice(bidPrice);
em.persist(bid);
return bid.getBidId();
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="actionBazaar" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>actionbazaar.persistence.Bid</class>
<class>actionbazaar.persistence.Item</class>
<class>actionbazaar.persistence.User</class>
<class>actionbazaar.persistence.Bidder</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="eclipselink.target-server" value="WebLogic_10"/>
<property name="eclipselink.target-database" value="Oracle11"/>
<property name="javax.persistence.jdbc.driver"
value="oracle.jdbc.OracleDriver"/>
<property name="javax.persistence.jdbc.password"
value="ab"/>
<property name="javax.persistence.jdbc.url"
value="jdbc:oracle:thin:@hera:1521:orcl"/>
<property name="javax.persistence.jdbc.user" value="ab"/>
<property name="eclipselink.logging.level" value="ALL"/>
</properties>
</persistence-unit>
</persistence>
The log output follows:
C:\Oracle\Middleware\jdev_11gR1\jdk160_18\bin\javaw.exe -client -classpath C:\MyWork\11g\ejb3inaction\.adf;C:\MyWork\11g\ejb3inaction\Chapter12JavaSEClient\classes;C:\MyWork\11g\ejb3inaction\Chapter12\classes;C:\Oracle\Middleware\jdev_11gR1\modules\javax.ejb_3.0.1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\com.oracle.toplink_1.0.0.0_11-1-1-3-0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\org.eclipse.persistence_1.0.0.0_2-0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\com.bea.core.antlr.runtime_2.7.7.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.toplink_11.1.1\javax.persistence_2.0_preview.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.xdk_11.1.0\xmlparserv2.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.xdk_11.1.0\xml.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.jsf_1.0.0.0_1-2.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.enterprise.deploy_1.2.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.interceptor_1.0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.jms_1.1.1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.jsp_1.1.0.0_2-1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.jws_2.0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.activation_1.1.0.0_1-1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.mail_1.1.0.0_1-4-1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.xml.soap_1.3.1.0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.xml.rpc_1.2.1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.xml.ws_2.1.1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.management.j2ee_1.0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.resource_1.5.1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.servlet_1.0.0.0_2-5.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.transaction_1.0.0.0_1-1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.xml.stream_1.1.1.0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.security.jacc_1.0.0.0_1-1.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.xml.registry_1.0.0.0_1-0.jar;C:\Oracle\Middleware\jdev_11gR1\modules\javax.persistence_1.0.0.0_1-0-2.jar;C:\Oracle\Middleware\jdev_11gR1\wlserver_10.3\server\lib\weblogic.jar;C:\Oracle\Middleware\jdev_11gR1\wlserver_10.3\server\ext\jdbc\oracle\11g\ojdbc6.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n-collation.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n-lcsd.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n-mapping.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n-servlet.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n-translation.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n-utility.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.odl_11.1.1\ojdl.jar;C:\Oracle\Middleware\jdev_11gR1\oracle_common\modules\oracle.dms_11.1.1\dms.jar -Djavax.net.ssl.trustStore=C:\Oracle\Middleware\jdev_11gR1\wlserver_10.3\server\lib\DemoTrust.jks chapter12javaseclient.PlaceBidBeanJavaSE
[EL Finest]: 2010-06-25 09:23:10.495--ServerSession(229902)--Thread(Thread[main,5,main])--Begin predeploying Persistence Unit actionBazaar; session file:/C:/MyWork/11g/ejb3inaction/Chapter12JavaSEClient/classes/_actionBazaar; state Initial; factoryCount 0
[EL Finest]: 2010-06-25 09:23:10.518--ServerSession(229902)--Thread(Thread[main,5,main])--property=eclipselink.orm.throw.exceptions; default value=true
[EL Finer]: 2010-06-25 09:23:10.532--ServerSession(229902)--Thread(Thread[main,5,main])--Searching for default mapping file in file:/C:/MyWork/11g/ejb3inaction/Chapter12JavaSEClient/classes/
[EL Finer]: 2010-06-25 09:23:10.537--ServerSession(229902)--Thread(Thread[main,5,main])--Searching for default mapping file in file:/C:/MyWork/11g/ejb3inaction/Chapter12JavaSEClient/classes/
[EL Config]: 2010-06-25 09:23:10.652--ServerSession(229902)--Thread(Thread[main,5,main])--The access type for the persistent class [class actionbazaar.persistence.Item] is set to [PROPERTY].
[EL Config]: 2010-06-25 09:23:10.696--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to many mapping element [method getCategorySet] is being defaulted to: class actionbazaar.persistence.Category.
[EL Config]: 2010-06-25 09:23:10.702--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to many mapping element [method getBids] is being defaulted to: class actionbazaar.persistence.Bid.
[EL Config]: 2010-06-25 09:23:10.71--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to one mapping element [method getSeller] is being defaulted to: class actionbazaar.persistence.Seller.
[EL Config]: 2010-06-25 09:23:10.71--ServerSession(229902)--Thread(Thread[main,5,main])--The access type for the persistent class [class actionbazaar.persistence.User] is set to [PROPERTY].
[EL Config]: 2010-06-25 09:23:10.711--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to many mapping element [method getCategories] is being defaulted to: class actionbazaar.persistence.Category.
[EL Config]: 2010-06-25 09:23:10.716--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to one mapping element [method getBillingInfo] is being defaulted to: class actionbazaar.persistence.BillingInfo.
[EL Config]: 2010-06-25 09:23:10.717--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to one mapping element [method getContactInfo] is being defaulted to: class actionbazaar.persistence.ContactInfo.
[EL Config]: 2010-06-25 09:23:10.718--ServerSession(229902)--Thread(Thread[main,5,main])--The access type for the persistent class [class actionbazaar.persistence.Bidder] is set to [PROPERTY].
[EL Config]: 2010-06-25 09:23:10.72--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to many mapping element [method getBids] is being defaulted to: class actionbazaar.persistence.Bid.
[EL Config]: 2010-06-25 09:23:10.721--ServerSession(229902)--Thread(Thread[main,5,main])--The access type for the persistent class [class actionbazaar.persistence.Bid] is set to [PROPERTY].
[EL Config]: 2010-06-25 09:23:10.721--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to one mapping element [method getBidBidder] is being defaulted to: class actionbazaar.persistence.Bidder.
[EL Config]: 2010-06-25 09:23:10.721--ServerSession(229902)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to one mapping element [method getItem] is being defaulted to: class actionbazaar.persistence.Item.
[EL Config]: 2010-06-25 09:23:10.722--ServerSession(229902)--Thread(Thread[main,5,main])--The alias name for the entity class [class actionbazaar.persistence.Item] is being defaulted to: Item.
[EL Config]: 2010-06-25 09:23:10.746--ServerSession(229902)--Thread(Thread[main,5,main])--The alias name for the entity class [class actionbazaar.persistence.Bidder] is being defaulted to: Bidder.
[EL Config]: 2010-06-25 09:23:10.746--ServerSession(229902)--Thread(Thread[main,5,main])--The alias name for the entity class [class actionbazaar.persistence.User] is being defaulted to: User.
[EL Config]: 2010-06-25 09:23:10.753--ServerSession(229902)--Thread(Thread[main,5,main])--The table name for entity [class actionbazaar.persistence.Bidder] is being defaulted to: USERS.
[EL Config]: 2010-06-25 09:23:10.753--ServerSession(229902)--Thread(Thread[main,5,main])--The discriminator column name for the root inheritance class [class actionbazaar.persistence.Bidder] is being defaulted to: DTYPE.
[EL Config]: 2010-06-25 09:23:10.755--ServerSession(229902)--Thread(Thread[main,5,main])--The primary key column name for the inheritance class [class actionbazaar.persistence.Bidder] is being defaulted to: USER_ID.
[EL Config]: 2010-06-25 09:23:10.755--ServerSession(229902)--Thread(Thread[main,5,main])--The foreign key column name for the inheritance class [class actionbazaar.persistence.Bidder] is being defaulted to: USER_ID.
[EL Config]: 2010-06-25 09:23:10.758--ServerSession(229902)--Thread(Thread[main,5,main])--The alias name for the entity class [class actionbazaar.persistence.Bid] is being defaulted to: Bid.
Exception in thread "main" java.lang.NullPointerException
at chapter12javaseclient.PlaceBidBeanJavaSE.main(PlaceBidBeanJavaSE.java:43)
Process exited with exit code 1.Thank you for your reply!
The client now works correctly. It seems that the line
em = emf.createEntityManager(emProps);//
throws an exception when no argument is given for em = emf.createEntityManager();// emProps missing!
There was also a warning in jdev editor, about the line you mentioned:
<property name="eclipselink.target-server" value="WebLogic 10"/>
Carry on with your good work!
The updated persistence.xml and java source code shown below:
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="actionBazaar" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>actionbazaar.persistence.Bid</class>
<class>actionbazaar.persistence.Item</class>
<class>actionbazaar.persistence.User</class>
<class>actionbazaar.persistence.Bidder</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="eclipselink.target-database" value="Oracle11"/>
<property name="javax.persistence.jdbc.driver"
value="oracle.jdbc.OracleDriver"/>
<property name="javax.persistence.jdbc.password"
value="29E8BD11B89A62E3862F19C4F84B7DB0"/>
<property name="javax.persistence.jdbc.user" value="ab"/>
<property name="eclipselink.logging.level" value="ALL"/>
<property name="eclipselink.orm.validate.schema" value="true"/>
<property name="javax.persistence.jdbc.url"
value="jdbc:oracle:thin:@hera:1521:orcl"/>
</properties>
</persistence-unit>
</persistence>
package chapter12javaseclient;
import actionbazaar.buslogic.BidException;
import actionbazaar.persistence.Bid;
import actionbazaar.persistence.Bidder;
import actionbazaar.persistence.Item;
import java.util.HashMap;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.eclipse.persistence.config.EntityManagerProperties;
public class PlaceBidBeanJavaSE {
private static EntityManagerFactory emf;
private static EntityManager em;
private static Hashtable emProps = new Hashtable();
public static void main(String[] args) {
String userId= "idiot";
Long itemId = new Long (2);
Double bidPrice = 2002.50;
try {
if (emf == null){
emf = Persistence.createEntityManagerFactory("actionBazaar");
System.out.println("EntityManagerFactory created!");
getEntityManager();
System.out.println("EntityManager created!");
addBid(userId,itemId,bidPrice);
commitTransaction();
} finally {
// close the EntityManager when done
em.close();
emf.close();
private static void getEntityManager() {
try {
System.out.println("Creating entity manager");
em = emf.createEntityManager(emProps);// if argument is missing exception is thrown!
em.getTransaction().begin();
} catch (Exception ne) {
// TODO: Add catch code
ne.printStackTrace();
private static void commitTransaction() {
em.getTransaction().commit();
private static Long addBid(String userId, Long itemId, Double bidPrice) throws BidException {
Item item = em.find(Item.class,itemId);
if (item == null)
throw new BidException("Invalid Item Id");
Bidder bidder = em.find(Bidder.class,userId);
if (bidder == null)
throw new BidException("Invalid Bidder Id");
Bid bid = new Bid();
bid.setItem(item);
bid.setBidBidder(bidder);
bid.setBidPrice(bidPrice);
em.persist(bid);
return bid.getBidId();
NA
[http://nickaiva.blogspot.com/] -
Weblogic throws NullPointerException when using ServiceControl.setTimeout
We are invoking a SOAP service via a com.bea.control.ServiceControl that was generated from a WSDL (right click WSDL, Generate Service Control) using Weblogic 8.1.6.
SOAP service execution is successful using an http and https endpoint. However, when setting a timeout via ServiceControl.setTimeout(int millisecods) method, the Weblogic API is throwing a NullPointerException when using an https endpoint. When using an http endpoint with the setTimeout method execution is successful.
DEBUG com.bea.wlw.runtime.jws.call.SoapHttpCall [ExecuteThread: '10' for queue: 'weblogic.kernel.Default']: opening connection to https://[... edit removed ...]
DEBUG com.bea.wlw.runtime.jws.call.SoapHttpCall [ExecuteThread: '10' for queue: 'weblogic.kernel.Default']: Response generation exception
Throwable: java.lang.NullPointerException
Stack Trace:
java.lang.NullPointerException
at weblogic.net.http.HttpsClient.openWrappedSSLSocket(HttpsClient.java:455)
at weblogic.net.http.HttpsClient.openServer(HttpsClient.java:235)
at weblogic.net.http.HttpsClient.openServer(HttpsClient.java:389)
at weblogic.net.http.HttpsClient.<init>(HttpsClient.java:209)
at weblogic.net.http.HttpClient.New(HttpClient.java:228)
at weblogic.net.http.HttpsURLConnection.getHttpClient(HttpsURLConnection.java:246)
at weblogic.net.http.HttpsURLConnection.connect(HttpsURLConnection.java:217)
at weblogic.net.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:189)
at com.bea.wlw.runtime.jws.call.SoapHttpCall.invoke(SoapHttpCall.java:179)
at com.bea.wlw.runtime.jws.call.SoapHttpCall.invoke(SoapHttpCall.java:80)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceControlImpl.jcs:1288)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceControlImpl.jcs:1155)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java:377)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:433)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:406)
at com.bea.wlw.runtime.jcs.container.JcsProxy.invoke(JcsProxy.java:388)
DEBUG com.bea.wlw.runtime.jws.call.SoapFault [ExecuteThread: '10' for queue: 'weblogic.kernel.Default']: SoapFault exception throwable e
DEBUG com.bea.wlw.runtime.jws.call.SoapHttpCall [ExecuteThread: '10' for queue: 'weblogic.kernel.Default']: response code=0, responseMsg=null
DEBUG com.bea.wlw.runtime.jws.call.SoapHttpCall [ExecuteThread: '10' for queue: 'weblogic.kernel.Default']: closed connection to https://[... edit removed ...]
WARN WLW.INVOKE.[... edit removed ...] [ExecuteThread: '10' for queue: 'weblogic.kernel.Default']: Id=[... edit removed id ...] Method=[... edit removed method ...]; Failure=com.bea.control.ServiceControlException: SERVICE FAULT:
Code:java.lang.NullPointerException
String:null
Detail:
END SERVICE FAULT
ERROR [... edit removed ...]
[ExecuteThread: '10' for queue: 'weblogic.kernel.Default']: ServiceControlException
com.bea.control.ServiceControlException: SERVICE FAULT:
Code:java.lang.NullPointerException
String:null
Detail:
END SERVICE FAULT
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceControlImpl.jcs:1268)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java:377)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:433)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:406)
at com.bea.wlw.runtime.jcs.container.JcsProxy.invoke(JcsProxy.java:388)Thanks for the suggestion. But with -DUseSunHttpHandler=true the Weblogic API is throwing a ClassCastException with or without the timeout value set.
Failure=com.bea.control.ServiceControlException: SERVICE FAULT:
Code:java.lang.ClassCastException
String:null
Detail:
END SERVICE FAULT
ERROR: ServiceControlException
com.bea.control.ServiceControlException: SERVICE FAULT:
Code:java.lang.ClassCastException
String:null
Detail:
END SERVICE FAULT
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceControlImpl.jcs:1268)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java:377)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:433)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:406)
at com.bea.wlw.runtime.jcs.container.JcsProxy.invoke(JcsProxy.java:388) -
Af:inputListOfValues without values throws NullPointerException
Hello!
In some cases we have an af:inputListOfValues without any values, due to restrictions in the query. Unfortunately, a NullPointerException is thrown in this case. Actually, we are using JDev 11.1.1.5.
Is there any solution or workaround to allow empty af:inputListOfValues?
Regards,
Christoph
Edited by: mephistopheles on Sep 3, 2012 11:47 PMHi,
can you verify with JDeveloper 11.1.1.6 and provide a reproducible set of steps if it reproduces? Also I am wondering if the NPE is throw when you close the LOV or when you submit the form later
Frank -
DatabaseMetaData.getAttributes throwing 'unsupported feature' exception
Hi, maybe someone can help me with this.
For a given schema, I'm trying to find the definition of a user-defined type. However, the getAttributes method of DatabaseMetaData throws an exception, claiming that the feature is unsupported.
This is the code:
Connection connection = null; ResultSet resultSet = null; try { connection = DriverManager.getConnection( URL, USERNAME, PASSWORD ); DatabaseMetaData dbMD = connection.getMetaData(); System.out.printf( "%s %d.%d%n", dbMD.getDatabaseProductName(), dbMD.getDatabaseMajorVersion(), dbMD.getDatabaseMinorVersion() ); resultSet = dbMD.getAttributes( null, null, "BATCH_T", "%" ); // this is line 32 // code to print the ResultSet } finally { if( resultSet != null ) resultSet.close(); if( connection != null ) connection.close(); }
And this is the output:
Oracle 10.2 Exception in thread "main" java.sql.SQLException: Unsupported feature at oracle.jdbc.OracleDatabaseMetaData.getAttributes(OracleDatabaseMetaData.java:10980) at udttest.Main.main(Main.java:32)
The driver is the very latest one from the Oracle site, ojdbc6.jar, version 11.2.0.2.0. According to the JavaDocs of OracleDatabaseMetaData, the getAttributes method has been there since 9.0.2. So does this means that the method has merely been present, and always throws this exception?
Alternatively, is there another way of programmatically retrieve information about a user-defined type?
Thanks,
- PeterSeverity One wrote:
jschell wrote:
Severity One wrote:
Yes, but the question was not how PL/SQL could know about how a Java object looks like, but how Java can know how a PL/SQL object looks like.You said the following.
+"One issue we have at work is to pass to or receive from a PL/SQL stored procedure a Java object."+
What I read from that is that you wish to get/send a "java object" to PL/SQL.
Thus PL/SQL would in fact need to know what a "java object" is.No, you forgot to read the context: I wanted to know how Java could figure out how an Oracle user-defined type looked like, not the other way around. This business of "PL/SQL knowing about a Java object" is something you invented, that you keep harking on, and which I never said. So could you please drop it?
I read what you posted, not your mind.
Well, I could think of having the business logic for an application in PL/SQL, and using Java to create an API or web > > > Specifically, it's about an SMS sending application, which is interacting with just one table in Oracle and an SMS-C. Want to send an SMS? Insert it into the table. Want to receive one? Read it from the table. Any application that wants to send any number of SMS's, would therefore interact with this database, and a lot of things can be done purely in Oracle, without the need of having a separate application requiring the attention of support staff.Which I can implement completely and easily without using PL/SQL user defined types.Really? There are a lot of optional parameters when sending an SMS. It's not just sender, recipient and text content. So if I want to send, say an identical message to 10,000 recipients, or I want to send 10,000 individual messages; in both cases, with certain parameters for such things like time-outs, SMS-C port, protocol ID, data coding, delivery report options, priority, and all the other things that SMPP allows you to define, how would you pass those in a manner that doesn't lead to dozens of stored procedures, or very long parameter lists?
Standard normal form in relational databases - an option table.
And I doubt a valid format for delivery would work with 10,000 recipients stored in a single UDF verus a receiptant table.
Not to mention of course that the fact that there might be one case for a UDF doesn't mean that the usage is a good idea for most applications. Or even that one application that uses a single UDF will need more than one of them.
Restating what I said "...doesn't mean that it *normally* a good idea to use it."
To clarify your confusion about that statement it means that there will in fact be some cases where it is acceptable but most cases it is not.
Or do you prefer calling stored procedures with endless parameter lists? Or to have a whole bunch of insert and update statements called from Java?No idea what you are talking about. See the above example about sending SMS messages.
Option table.
First what you mention above is a standard idiom in all programming languages and used extensively since interactions between programming languages and relational database began.What, whole loads of stored procedures, or doing all the updates and inserts from Java? We've come to the conclusion that the inability to validate an SQL statement in Java source code is a bugger, and that it's better to do this sort of thing in a stored procedure. Also, using arrays means a significant performance improvement, and an array of objects/user-defined types is the next thing that comes to mind.
That will not be a consideration in most applications. And for those applications where there is a proven performance bottleneck at the database layer most applications would be better served with one or more of the following
1. Redoing the architecture/design
2. Using a caching mechanism.
3. Even look at redoing the requirements.
Secondly I have no idea what you mean by "endles parameter lists". I do not have that problem. If you do then I can only suggest that you should look at problems with your design rather than than attempting to solve it with your implementation.If you have a lot of parameters, like with sending SMS messages, some of which are optional whilst others are not, and when many of these parameters are identical between different insert statements, you have two options:
* use very long parameter lists.
* use user-defined types; for example, an array with 'recipient + messages' types, and a single 'all other options' type.
Or an option table.
Perhaps not, but I didn't take off at a tangent. Anyway, one way of preventing binding is by having one of the frameworks figure out on its own what the other is doing. The whole reflection and annotation thing in Java lets you do that. Unfortunately, the getAttributes() method does not.
First as you yourself noted it is irrelevant.No, that's something you claimed. When you ask for an example, don't brush them off as being irrelevant.
My mistake then.
Second dynamic interface code is NOT a mechanism that reduces coupling. The fact that it is dynamic does not alter the dependency.It reduced coupling between source code, which is what it's all about. I can always fix a library; it's a lot easier than changing dozens of applications.
No it doesn't. Coupling is coupling. The manner of calling the methods doesn't alter the semantics that require that the method is called in the first place.
That is similar to claiming that something like perl/javascript is less "coupled" because the language is interpreted versus C++ where the method calls are compiled. Which of course is not true.
I can store data in a database, any database, in any number of ways. None of which would require a Oracle user defined type.True, but I'm using Oracle for more than just storing data. PL/SQL is extremely powerful for certain operations, and it'd be silly not to employ that power.Which has nothing to do with what I said.Quite frankly, I'm at a loss what point exactly you're trying to make. Passing data between Java and Oracle user-defined types and arrays is a total pain, so as a programmer I'm trying to find a way to do this in a standard way, something that can be put in a library. I agree that it a complex issue.
It however is not something that most applications need however since most do not need UDFs.
And so I have written such a library: small, database-agnostic (should work with any JDBC data source, although I haven't tested it yet), but with annotations to mark what UDT a class maps to, and to what field within the UDT each field of the class maps to. It's the annotation bit I was wondering whether it could be avoided. Obviously, because Oracle doesn't support the getAttributes method, it would no longer be database-agnostic. Which is not really a problem, because we only use Oracle, unless a vendor supports only some other database.
Not sure what that means since most other databases do not support UDFs.
That fact that a feature exists is not by itself a reason to use it. Java has 'strictfp' but I have never had a single business need that required that I use it. As such if I saw someone attempting to use it or stating that it must be used then I would insist that the provide specific details driven from the business needs that required its usage.The fact that you cannot think of a use or a business need, does not mean one does not exist. I suggest you re-read my first post, since that is not what I said. -
Edit locally throws NullPointerException
Hi All,
While doing EditLocally in a Custom Repository Manager,it throws a null pointer Exception.
As per the Repository Manager Implementation
log ,we dont any exception. So as there is no such relevent error realted to repository manager in default.trc file.
RF doesnt pass call to setContent() method of ContentManager.
We failed to do so in Nw04 SPS11 and Nw04 SPS14.
Where as we can able to edit successfully in NW04 SPS09.
Regards
Arati
Following is the stack trace we got in iview of edit locally
Please wait
Your request is being processed
System Error
An exception occurred during the program execution. Below you will find technical information pertaining to this exception that you might want to forward to your system administrator.
Exception Class
Call Stack java.lang.NullPointerException
at com.sapportals.wcm.control.edit.ResourceClientSideEditControl.renderLockedByUser(ResourceClientSideEditControl.java:1029)
at com.sapportals.wcm.control.edit.ResourceClientSideEditControl.renderIsLockedByOther(ResourceClientSideEditControl.java:344)
at com.sapportals.wcm.control.edit.ResourceClientSideEditControl.renderCurrentConditions(ResourceClientSideEditControl.java:302)
at com.sapportals.wcm.control.edit.ResourceClientSideEditControl.render(ResourceClientSideEditControl.java:191)
at com.sapportals.wdf.layout.HorizontalLayout.renderControls(HorizontalLayout.java:42)
at com.sapportals.wdf.stack.Pane.render(Pane.java:155)
at com.sapportals.wdf.stack.PaneStack.render(PaneStack.java:67)
at com.sapportals.wdf.layout.HorizontalLayout.renderPanes(HorizontalLayout.java:73)
at com.sapportals.wdf.stack.Pane.render(Pane.java:158)
at com.sapportals.wdf.stack.PaneStack.render(PaneStack.java:67)
at com.sapportals.wdf.layout.HorizontalLayout.renderPanes(HorizontalLayout.java:73)
at com.sapportals.wdf.stack.Pane.render(Pane.java:158)
at com.sapportals.wdf.stack.PaneStack.render(PaneStack.java:67)
at com.sapportals.wdf.layout.HorizontalLayout.renderPanes(HorizontalLayout.java:73)
at com.sapportals.wdf.stack.Pane.render(Pane.java:158)
at com.sapportals.wdf.stack.PaneStack.render(PaneStack.java:67)
at com.sapportals.wdf.WdfCompositeController.internalRender(WdfCompositeController.java:696)
at com.sapportals.wdf.WdfCompositeController.buildComposition(WdfCompositeController.java:664)
at com.sapportals.htmlb.AbstractCompositeComponent.preRender(AbstractCompositeComponent.java:33)
at com.sapportals.htmlb.Container.preRender(Container.java:118)
at com.sapportals.htmlb.Container.preRender(Container.java:118)
at com.sapportals.htmlb.Container.preRender(Container.java:118)
at com.sapportals.portal.htmlb.PrtContext.render(PrtContext.java:413)
at com.sapportals.htmlb.page.DynPage.doOutput(DynPage.java:237)
at com.sapportals.wcm.portal.component.base.KMControllerDynPage.doOutput(KMControllerDynPage.java:130)
at com.sapportals.htmlb.page.PageProcessor.handleRequest(PageProcessor.java:129)
at com.sapportals.portal.htmlb.page.PageProcessorComponent.doContent(PageProcessorComponent.java:134)
at com.sapportals.wcm.portal.component.base.ControllerComponent.doContent(ControllerComponent.java:73)
at com.sapportals.portal.prt.component.AbstractPortalComponent.doRefresh(AbstractPortalComponent.java:355)
at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:188)
at com.sapportals.portal.prt.component.AbstractPortalComponent.service(AbstractPortalComponent.java:114)
at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
at com.sapportals.portal.prt.component.PortalComponentResponse.include(PortalComponentResponse.java:215)
at com.sapportals.portal.pb.IviewModeProxy.doContent(IviewModeProxy.java:20)
at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:209)
at com.sapportals.portal.prt.component.AbstractPortalComponent.service(AbstractPortalComponent.java:114)
at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
at com.sapportals.portal.prt.component.PortalComponentResponse.include(PortalComponentResponse.java:215)
at com.sapportals.portal.prt.pom.PortalNode.service(PortalNode.java:646)
at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
at com.sapportals.portal.prt.core.PortalRequestManager.runRequestCycle(PortalRequestManager.java:753)
at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:240)
at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:522)
at java.security.AccessController.doPrivileged(Native Method)
at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:405)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:156)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160)
Report ErrorSome more behavior of this problem
1)when try to edit locally>file download started and open the file in approprite application>and in the KM iview got the null pointer exception(which usually have check in now, check in later, cancel local editing buttons)
2) When resume local editing...nothing happens. Even doesnt through error in iview
3) when do a lock explicitly to any document- through selection->lock,it puts a check_out_by_me symbol rather than lock_by_me symbol
Please any body help to resolve the issue,
Regards
arati -
HttpConnection throws NullPointerException
Hi everybody !
I'm faceing an odd problem here. I have developed an J2ME (MIDP1.0) application that, among other things, needs to comunicate with my server. The application woks fine on the emulator, it even works great on my phone (Nokia 2650) and on my partners phone (Nokia 6610), but when tested on other phones (SonyErricson, Sagem, Motorola, even an smartphone from Nokia, a 7610 i think) it throws a NullPointerException. I've run out of ideeas regading how to solve this. Here's the piece of code that bugs me:
public void run(){
Pachet raspuns = null;
display.setCurrent(forma);
progress.setLabel("Trying to connect");
try {
conn = (HttpConnection) Connector.open(URL, Connector.READ_WRITE);
conn.setRequestMethod( HttpConnection.POST );
conn.setRequestProperty("Content-Type", "application/vnd.wap.wmlc");
byte[] dataForSend = deTrimis.getRawData();
conn.setRequestProperty("Content-Length", ""+dataForSend.length);
progress.setLabel("Sending request");
progress.setValue(25);
forma.append("Opening outputstream\n");
os = conn.openOutputStream();
forma.append("Sending data\n");
os.write( dataForSend );
forma.append("Flushing data\n");
os.flush(); // this throws the exception
forma.append("Closing stream\n");
os.close(); // if i remove the "os.flush()", the exception is thrown here
forma.append("Getting response code\n");
int code = conn.getResponseCode(); // if i remove both os.flush() and os.close() the exception is thrown here !!!
forma.append("Response code = "+code+"\n");
progress.setLabel("Checking response");
progress.setValue(50);
if (code != HttpConnection.HTTP_OK){
throw new Exception (conn.getResponseMessage()+"("+code+")");
progress.setLabel("Reading data");
progress.setValue(75);
if (!aborted){
dIn = conn.openDataInputStream();
raspuns = new Pachet();
raspuns.readPackage(dIn);
if (!aborted)
listener.packageReceived(raspuns);
} catch (Exception e) {
forma.append("Connection failed. Reason: "+e.getMessage());
e.printStackTrace();
} finally{
cleanUp();
}I really need to get this working, so could please someone give me a hint.
Thank you,
Daniel Comsa.Hi
I solved this problem.
There is nothing wrong with the device but the connection that we use.
Our service provider does not provide the pure HTTP connection rather it goes over WAP and thats where the problem comes.
Cause we attach our header for the server and WAP sticks his header in between , thats why server does not handle the request and consider it as bad request.
I have commented the following lines for my code to work
connection.setRequestProperty("User-Agent",
System.getProperty("microedition.profiles"));
connection.setRequestProperty("Content-Type",
"application/octet-stream");
Regards,
Sushil -
MTOM throws NullPointerException
Hello,
I need to transfer large files (12Mb) of diferent types (.pdf, .jpg, .doc, etc). I changed the return type to DataHandler and tried to enable MTOM in my webservice, but when I enabled it, after the method is executed, system throws a NullPointerException.
I'm enabling MTOM with the annotation @MTOM, and if I just take off this annotation the webservice works correctly.
Do you know of any problem using MTOM with Java 1.6.0_10? Do you have a suggestion of a better way to transfer it?
ThanksTested this with JDK 1.4 and it works with the following changes:
Make these static:
static public Writer out;
static public void validateXml (String xmlSt)
and, of course adding:
import java.io.*;
import org.xml.sax.*;
import javax.xml.parsers.SAXParserFactory;
Then here is what I used to test it:
public class Test2 {
static public void main(String args[]){
System.out.println("Hi there");
String s = "<?xml version=\"1.0\" encoding=\"UTF-8\"?> <!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\"> <html> <head> <title> Ho there </title> </head> <body> <h1> Hi there </h1> </body> </html>";
try {
xmlResHandler.validateXml(s);
}catch (Exception ex){
ex.printStackTrace();
}I think you problem make have to do with your management of the "out" Writer. -
StartElement throws NullPointerException
hi
The code below throws a NullPointerException at startElement method ... Can someone help figure out how to fix it ...?
xmlSt value is set from another method which is NOT NULL.....
public class xmlResHandler extends HandlerBase
public void validateXml (String xmlSt) throws Exception
String xmlString = xmlSt;
java.io.InputStream input=null;
input=new java.io.ByteArrayInputStream(xmlString.getBytes());
out = new OutputStreamWriter (System.out, "UTF8");
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(true);
factory.newSAXParser().parse( input, new xmlResHandler());
System.out.println("validation success in validateXml");
public Writer out;
public xmlResHandler(){}
public void error (SAXParseException e) throws SAXParseException
throw e;
public void warning (SAXParseException err) throws SAXParseException
System.out.println("** Warning" + ", line " + err.getLineNumber () + ", uri " + err.getSystemId ());
System.out.println(" " + err.getMessage ());
public void startDocument () throws SAXException
showData ("<?xml version='1.0' encoding='UTF-8'?>");
newLine();
public void endDocument () throws SAXException
try {
newLine();
out.flush ();
} catch (IOException e) {
throw new SAXException ("I/O error", e);
public void startElement (String name, AttributeList attrs) throws SAXException
showData ("<"+name);
if (attrs != null) {
for (int i = 0; i < attrs.getLength (); i++) {
showData (" ");
showData (attrs.getName(i)+"=\""+attrs.getValue (i)+"\"");
showData (">");
public void endElement (String name) throws SAXException
showData ("</"+name+">");
public void characters (char buf [], int offset, int len) throws SAXException
String s = new String(buf, offset, len);
showData (s);
private void showData (String s) throws SAXException
try {
System.out.println (s);
out.flush ();
} catch (IOException e) {
throw new SAXException ("I/O error", e);
private void newLine () throws SAXException
String lineEnd = System.getProperty("line.separator");
try {
System.out.println (lineEnd);
out.flush ();
} catch (IOException e) {
throw new SAXException ("I/O error", e);
Spent a lot of time ....no luck where i am going wrong ... Thanks for the help in advance
prabhuTested this with JDK 1.4 and it works with the following changes:
Make these static:
static public Writer out;
static public void validateXml (String xmlSt)
and, of course adding:
import java.io.*;
import org.xml.sax.*;
import javax.xml.parsers.SAXParserFactory;
Then here is what I used to test it:
public class Test2 {
static public void main(String args[]){
System.out.println("Hi there");
String s = "<?xml version=\"1.0\" encoding=\"UTF-8\"?> <!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\"> <html> <head> <title> Ho there </title> </head> <body> <h1> Hi there </h1> </body> </html>";
try {
xmlResHandler.validateXml(s);
}catch (Exception ex){
ex.printStackTrace();
}I think you problem make have to do with your management of the "out" Writer. -
TaskManagerQueryService / TaskSearchFilter throws NullPointerException
I am trying to run a task search using the TaskManagerQueryService and a TaskSearchFilter. I'm looking for active tasks assigned to groups that a user belongs to. Whenever I include the Conditions with the Connectives shown below, the query service throws a null pointer exception as shown in the stacktrace below. What I'm trying to do with the Connectives is effectively create the equivalent of
if (Correct status code && (in group 1 || in group 2 ... ) {return the task}
Anyone have a clue what I'm doing wrong?
The code looks like this:
final ServiceClientFactory myFactory = getServiceClientFactory(pAdobeServername, pUserId, pPassWord);
final TaskManager taskManager = TaskManagerClientFactory.getTaskManager(myFactory);
final TaskManagerQueryService queryManager = TaskManagerClientFactory.getQueryManager(myFactory);
LiveCycleUser retUser = getUserInfo(pAdobeServername, pUserId, pPassWord);
final TaskSearchFilter taskSearchFilter = new TaskSearchFilter();
Operator operator = new Operator("<");
Integer statusCode = new Integer(StatusFilter.completed);
taskSearchFilter.addCondition(TaskSearchingConstants.pSTATUS, operator, statusCode);
HashSet<Group> groups = retUser.getGroupMembership();
Iterator<Group> groupIter = groups.iterator();
operator = new Operator("=");
if (groupIter.hasNext()) {
Group grp = groupIter.next();
String grpName = grp.getCommonName();
taskSearchFilter.addCondition(TaskSearchingConstants.pASSIGNMENT_QUEUE_OWNER, operator, grpName, Connective.AND);
while (groupIter.hasNext()) {
Group grp = groupIter.next();
String grpName = grp.getCommonName();
taskSearchFilter.addCondition(TaskSearchingConstants.pASSIGNMENT_QUEUE_OWNER, operator, grpName, Connective.OR);
if (processName != null) {
taskSearchFilter.setServiceName(processName);
taskSearchFilter.setIgnoreAllAcls(true);
final List<TaskRow> taskRowList = queryManager.taskSearch(taskSearchFilter);
beanList = buildBeanList(taskRowList, queryManager, taskManager);
The stacktrace looks like this:
Running: testGetAllTasksForSpecificProcessAsBeans
java.lang.NullPointerException
at com.adobe.idp.taskmanager.dsc.queryservice.TaskManagerQueryServiceImpl.taskSearch(TaskMan agerQueryServiceImpl.java:467)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.adobe.idp.dsc.component.impl.DefaultPOJOInvokerImpl.invoke(DefaultPOJOInvokerImpl.jav a:118)
at com.adobe.idp.dsc.interceptor.impl.InvocationInterceptor.intercept(InvocationInterceptor. java:140)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:60)
at com.adobe.idp.dsc.interceptor.impl.DocumentPassivationInterceptor.intercept(DocumentPassi vationInterceptor.java:53)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:60)
at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor$1.doInTransaction(Transa ctionInterceptor.java:74)
at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapterBean.execute(EjbTr ansactionCMTAdapterBean.java:357)
at com.adobe.idp.dsc.transaction.impl.ejb.adapter.EjbTransactionCMTAdapterBean.doSupports(Ej bTransactionCMTAdapterBean.java:227)
at sun.reflect.GeneratedMethodAccessor321.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.invocation.Invocation.performCall(Invocation.java:359)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionConta iner.java:237)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionI nterceptor.java:158)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstance Interceptor.java:169)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:378)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:168)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor. java:138)
at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:648)
at org.jboss.ejb.Container.invoke(Container.java:960)
at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalProxyFactory.java:430)
at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSessionProxy.java:103)
at $Proxy165.doSupports(Unknown Source)
at com.adobe.idp.dsc.transaction.impl.ejb.EjbTransactionProvider.execute(EjbTransactionProvi der.java:104)
at com.adobe.idp.dsc.transaction.interceptor.TransactionInterceptor.intercept(TransactionInt erceptor.java:72)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:60)
at com.adobe.idp.dsc.interceptor.impl.InvocationStrategyInterceptor.intercept(InvocationStra tegyInterceptor.java:55)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:60)
at com.adobe.idp.dsc.interceptor.impl.InvalidStateInterceptor.intercept(InvalidStateIntercep tor.java:37)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:60)
at com.adobe.idp.dsc.interceptor.impl.AuthorizationInterceptor.intercept(AuthorizationInterc eptor.java:165)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:60)
at com.adobe.idp.dsc.interceptor.impl.JMXInterceptor.intercept(JMXInterceptor.java:48)
at com.adobe.idp.dsc.interceptor.impl.RequestInterceptorChainImpl.proceed(RequestInterceptor ChainImpl.java:60)
at com.adobe.idp.dsc.engine.impl.ServiceEngineImpl.invoke(ServiceEngineImpl.java:115)
at com.adobe.idp.dsc.routing.Router.routeRequest(Router.java:129)
at com.adobe.idp.dsc.provider.impl.base.AbstractMessageReceiver.invoke(AbstractMessageReceiv er.java:329)
at com.adobe.idp.dsc.provider.impl.ejb.receiver.EjbReceiverBean.invoke(EjbReceiverBean.java: 158)
at sun.reflect.GeneratedMethodAccessor414.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.invocation.Invocation.performCall(Invocation.java:359)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionConta iner.java:237)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionI nterceptor.java:158)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstance Interceptor.java:169)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:378)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:168)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor. java:138)
at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:648)
at org.jboss.ejb.Container.invoke(Container.java:960)
at sun.reflect.GeneratedMethodAccessor402.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.invocation.unified.server.UnifiedInvoker.invoke(UnifiedInvoker.java:231)
at sun.reflect.GeneratedMethodAccessor401.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:28 8)
at $Proxy16.invoke(Unknown Source)
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:734)
at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:560)
at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:383)
at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:165)
Completed: testGetAllTasksForSpecificProcessAsBeansIt appears as though I have stumbled on the answer to my own question. In the task filter, I should be using TaskSearchingConstants.pCURRENT_ASSIGNMENT_QUEUE_OWNER instead of TaskSearchingConstants.pASSIGNMENT_QUEUE_OWNER.
-
XMLBean.validate() throws NullPointerException
I have an XML file that is valid against a schema. I created the XMLBeans for the schema and can create (in code) the XMLBean and call .validate() on the XMLBean and it is in fact valid. I can also validate the XML file just fine.
I then send that XMLBean (either loaded from a file or created in code) (as a string of XML) to an EJB. The EJB creates the XMLBean successfully, but when it calls .validate() it throws a NullPointerException. Here is the stack trace:
Valid: true
Exception in thread "main" java.rmi.RemoteException: EJB Exception: ; nested exc
eption is:
java.lang.NullPointerException
at weblogic.rjvm.BasicOutboundRequest.sendReceive(BasicOutboundRequest.j
ava:108)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteR
ef.java:284)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteR
ef.java:244)
at aaa.bbb.ccc.ddd.ejb.FOOCatalog_2fiik0_EOImpl_813_WLStub.create(
Unknown Source)
at aaa.bbb.ccc.ddd.CatalogProxy.create(FooCatalogProxy.java:234)
at FooPublish.main(MDCPublish.java:137)
Caused by: java.lang.NullPointerException
at com.bea.xbean.validator.Validator.beginEvent(Validator.java:331)
at com.bea.xbean.validator.Validator.nextEvent(Validator.java:187)
at com.bea.xbean.store.Saver$ValidatorSaver.emitEvent(Saver.java:3757)
at com.bea.xbean.store.Saver$ValidatorSaver.emitEvent(Saver.java:3720)
at com.bea.xbean.store.Saver$ValidatorSaver.emitContainer(Saver.java:364
2)
at com.bea.xbean.store.Saver.processContainer(Saver.java:775)
at com.bea.xbean.store.Saver.process(Saver.java:518)
at com.bea.xbean.store.Saver$ValidatorSaver.<init>(Saver.java:3546)
at com.bea.xbean.store.Type.validate(Type.java:280)
at com.bea.xbean.values.XmlObjectBase.validate(XmlObjectBase.java:310)
Any ideas?
ThanksThe problem was that the weblogic server had a previously-compiled version of the same XMLBean in its classpath. Once I removed the old XMLBean from the classpath the problem went away.
-
Properties.store throws NullPointerException
Hi,
I have a strange problem with the java.util.Properties class. Calling
store on a Properties object AFTER I've called System.setProperties
always leads to a NullPointerException.
Code sample 1:
Properties props = new Properties();
props.put("prop1", "val1");
ByteArrayOutputStream out = new ByteArrayOutputStream();
props.store(out, "Header");
Code sample 2:
Properties props = new Properties();
props.put("prop1", "val1");
System.setProperties(props);
ByteArrayOutputStream out = new ByteArrayOutputStream();
props.store(out, "Header");
Code sample 1 works fine, sample 2 throws a NullPointerException in
the last line. Even code sample 3 throws the exception in the last
line.
Code sample 3:
Properties props = new Properties();
props.put("prop1", "val1");
System.setProperties(props);
props = new Properties();
ByteArrayOutputStream out = new ByteArrayOutputStream();
props.store(out, "Header");
How can I avoid this problem. I can't guarantee that no one calls
System.setProperties before the store call, so this is no solution. I
need the store call to save the properties to a String. At a later
time I want to use Properties.load to read the properties from this
String (via ByteArrayInputStream). Perhaps there is another way to
store/load properties to/from a String?
Thanks,
MarkusHi,
I think the problem is that if u create a new Property it will create a new property with null value
Creates an empty property list with no default values.
and if u try to override the systemproperty creates a null pointer Exception.
Insteda try this
Properties p=System.getProperties();
p.put("prop1","val1");
System.setProperties(p);
ByteArrayOutputStream out = new ByteArrayOutputStream();
p.store(out, "Header");
means , try to get the property object from the system and go ahead with ur coding is working fine
Greetz
Kumar.R
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