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
prabhu
Tested 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.
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CreateEntityManagerFactory throws NullPointerException for ejb3 jse client
This question has been posted to the Toplink/jpa forum without any reply.
Dear experts!
I am trying to create a java standard edition client, to test outside the weblogic server, my ejb 3 entities, declared as shown in the following persistence.xml.
The java code follows also. I have read about some relevant bugs in eclipselink back in 2006, or 7 or 8 and mostly unanswered threads :
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Persistence.createEntityManagerFactory() throw NullPointerException in oc4j
I am using JDeveloper 11g Studio Edition Version 11.1.1.3.0, Build JDEVADF_11.1.1.3.PS2_GENERIC_100408.2356.5660.
Any helping hand available?
Thank you very much in advance!
NA
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>A solution might be found here:
Re: createEntityManagerFactory() throws NullPointerException for ejb jse client
Re: createEntityManagerFactory() throws NullPointerException for ejb jse client
NA
[http://nickaiva.blogspot.com/] -
CreateEntityManagerFactory() throws NullPointerException for ejb jse client
Dear experts!
I am trying to create a java standard edition client, to test outside the weblogic server, my ejb 3 entities, declared as shown in the following persistence.xml.
The java code, and stacktrace follows also. I have read about some relevant bugs in eclipselink back in 2006, or 7 or 8 and mostly unanswered threads :
CreateEntityManagerFactory null pointer exception and
Returned null to createEntityManagerFactory about tomcat and oc4j.
Persistence.createEntityManagerFactory() throw NullPointerException in oc4j
I am using JDeveloper 11g Studio Edition Version 11.1.1.3.0, Build JDEVADF_11.1.1.3.PS2_GENERIC_100408.2356.5660.
Any helping hand available?
Thank you very much in advance!
NA
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/] -
SAX Parser throws NullPointerException
Hi.
I'm using WLS6.1 SP1 built-in XML SAX parser. The code is like,
SAXParserFactory factory = SAXParserFactory.newInstance();
XMLReader parser = factory.newSAXParser().getXMLReader();
// Add a error handler
eh = new MyErrorHandler();
parser.setErrorHandler(eh);
parser.setContentHandler(this);
// Enable namespace
parser.setFeature("http://xml.org/sax/features/namespaces", true);
// Enable validation
parser.setFeature("http://xml.org/sax/features/validation", false);
parser.parse(new InputSource(in));
The NullPointerException is thrown at -
org.apache.xerces.framework.XMLParser.parse(XMLParser.java:965)
after the end element of (</eb:MessageHeader>) before the start element of <SOAP-ENV:Header>.
The XML file is attached.
=====================================
However, I tried to parse this document on xerces parser 131.
It worked fine.
=====================================
Did I miss any thing? It seems like a bug to me.
Thanks!
[header.xml]SAX should mask the fact that some content is specified inside of a CDATA section.. It is just characters.
The safest way to process characters is to setup a StringBuffer or equivalent in the startElement method. There is a variation of the StringBuffer append method that has the same three parameters (char[], int, int) as the characters signature. The characters method may be called many times before you are given all of the content of the string. How it decides when to call you depends on the parser and is subject to change over time. But, if you accumulate the contents in each call of characters and do the toString() in the endElement method you are going to get the right content. Lots of people over the last year or so that I've been involved in this forum have had other ways they thought were better than this, but most of them have eventually tried and accepted this way because it works and their "better" way did not.
It looks like you got the content for the CDATA section (Please refer...).I'm not sure what your problem is.
Dave Patterson -
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 -
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 -
XMLReader throws NullPointerException
have developed a CSV to XML parser using a JAXP with SAX Events to parse the CSV file into a DOM tree.
Well inside the parse() method I have the following code":
public void parse(InputSource input) throws IOException, SAXException
BufferedReader br = null;
if( input.getCharacterStream() != null )
br = new BufferedReader( input.getCharacterStream() );
else if( input.getByteStream() != null )
br = new BufferedReader( new InputStreamReader( input.getByteStream() ) );
else if( input.getSystemId() != null )
URL url = new URL( input.getSystemId() );
br = new BufferedReader( new InputStreamReader( url.openStream() ) );
else
throw new SAXException( "Objeto InputSource invalido" );
ContentHandler ch = getContentHandler();
ch.startDocument();
ch.startElement( "", "", "file", new AttributesImpl() );
this.parseInput( br );
ch.endElement( "", "", "file" );
ch.endDocument();
Problem is that whenever the app gets to the ch.startDocument() statement it throws an java.lang.NullPointerExecption. I have no idea why this is happening, I have tested the very same code with Xalan 2 and Xercer 2 parsers and it works without problems. But using the oracle xml parser v2 throws the Exception.
Is this a bug? should I set tome of the Transformer's attributes to an specifica value to avoid this? Where could I find more info on processing SAX events?
Thanks,
Fedrohave developed a CSV to XML parser using a JAXP with SAX Events to parse the CSV file into a DOM tree.
Well inside the parse() method I have the following code":
public void parse(InputSource input) throws IOException, SAXException
BufferedReader br = null;
if( input.getCharacterStream() != null )
br = new BufferedReader( input.getCharacterStream() );
else if( input.getByteStream() != null )
br = new BufferedReader( new InputStreamReader( input.getByteStream() ) );
else if( input.getSystemId() != null )
URL url = new URL( input.getSystemId() );
br = new BufferedReader( new InputStreamReader( url.openStream() ) );
else
throw new SAXException( "Objeto InputSource invalido" );
ContentHandler ch = getContentHandler();
ch.startDocument();
ch.startElement( "", "", "file", new AttributesImpl() );
this.parseInput( br );
ch.endElement( "", "", "file" );
ch.endDocument();
Problem is that whenever the app gets to the ch.startDocument() statement it throws an java.lang.NullPointerExecption. I have no idea why this is happening, I have tested the very same code with Xalan 2 and Xercer 2 parsers and it works without problems. But using the oracle xml parser v2 throws the Exception.
Is this a bug? should I set tome of the Transformer's attributes to an specifica value to avoid this? Where could I find more info on processing SAX events?
Thanks,
Fedro -
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. -
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.
-
ImapFolder.getAttributes() throws NullPointerException
When we call ImapFolder.getAttributes() we sometimes get NullPointerException. We we dig in the source code of javamail and we saw that it will be possibly a bug ;
Here is code block of getAttributes method:
public String[] getAttributes() throws MessagingException {
if (attributes == null)
exists(); // do a LIST to set the attributes
return (String[])(attributes.clone());
}Here when attributes attribute is null exists() method is called to fill this attribute but at exist() method;
} else {
exists = opened;
attributes = null;
.this else block says that even if we call exists() method attributes attribute can be null!
after calling exists() method our attributes attribute is null and when it is called "attributes.clone()" it causes NullPointerException.The exists() method will fail to fill in attributes only if the LIST command
returns no information about the folder, which should only happen if the
folder doesn't exist. I'd love to see a protocol trace from your server
showing the response to the LIST command. What server are you using?
How are you sure that the folder exists? Is it a folder that always exists?
Is the folder never removed and recreated? Is getAttributes being called
on an open folder?
Again, I agree that getAttributes should detect this case, but when it detects this case
it would would throw a FolderNotFoundException rather than a NullPointerException.
On some servers it may be possible for the folder to be open (and thus "exist"),
but have been removed, so that LIST shows no evidence of the folder. In this case
getAttributes should return an empty String array.
But again, I'd still like to know what conditions are causing this problem for you,
to make sure I fix all the possible cases correctly. -
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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