Exception class & Throwable class

Does the Exception class inherit hashCode from the Throwable class?
thanks in advance for anyones help??

No, from Object.
http://java.sun.com/products/jdk/1.2/docs/api/java/lang/Exception.html

Similar Messages

Can we extend the Throwable class instead of Exception Class??

Hi all..
Can we extend the Throwable class instead of Exception Class while creating our own custom Exception?If not Why?
Please give your valuble advices..
Ramesh.

I don't want to hijack the thread here, but in a conversational tone...on a related note.. I've thought about this too a bit and wondered if there are some recommended practices about catching and handling Throwable in certain applications. Like the other day I was debugging a web application that was triggering a 500. The only way I could find the problem in an error stack was to write code to catch Throwable, log the stack, and then re-throw it. I considered it "debug" code, and once I solved the problem I took the code out because, my understanding is, we don't want to be handling runtime problems... or do we? Should I have a catch clause for Throwable in my servlet and then pass the message to ServletException?
So along with the OP question, are there separate defined occasions when we should or should not handle Throwable? Or does it just all depend on circumstance?

Exception Description: Entity class [] has no primary key....

Received the following error in jdeveloper - some info on how to fix would be greatly appreciated
[EclipseLink/JPA Client] Adding Java options: -javaagent:C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar
C:\Oracle\MiddlewareNew\jdk160_05\bin\javaw.exe -client -classpath C:\JDeveloper\mywork\APP_CM_AUTONUM_GEN\.adf;C:\JDeveloper\mywork\APP_CM_AUTONUM_GEN\SAM_CM_AUTONUM_GEN\classes;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\toplink.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\antlr.jar;C:\oracle\MiddlewareNew\modules\com.bea.core.antlr.runtime_2.7.7.jar;C:\oracle\MiddlewareNew\modules\javax.persistence_1.0.0.0_1-0.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.xdk_11.1.1\xmlparserv2.jar;C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.xdk_11.1.1\xml.jar;C:\oracle\MiddlewareNew\modules\javax.jsf_1.2.0.0.jar;C:\oracle\MiddlewareNew\modules\javax.ejb_3.0.1.jar;C:\oracle\MiddlewareNew\modules\javax.enterprise.deploy_1.2.jar;C:\oracle\MiddlewareNew\modules\javax.interceptor_1.0.jar;C:\oracle\MiddlewareNew\modules\javax.jms_1.1.1.jar;C:\oracle\MiddlewareNew\modules\javax.jsp_1.1.0.0_2-1.jar;C:\oracle\MiddlewareNew\modules\javax.jws_2.0.jar;C:\oracle\MiddlewareNew\modules\javax.activation_1.1.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.mail_1.1.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.soap_1.3.1.0.jar;C:\oracle\MiddlewareNew\modules\javax.xml.rpc_1.2.1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.ws_2.1.1.jar;C:\oracle\MiddlewareNew\modules\javax.management.j2ee_1.0.jar;C:\oracle\MiddlewareNew\modules\javax.resource_1.5.1.jar;C:\oracle\MiddlewareNew\modules\javax.servlet_1.0.0.0_2-5.jar;C:\oracle\MiddlewareNew\modules\javax.transaction_1.0.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.stream_1.1.1.0.jar;C:\oracle\MiddlewareNew\modules\javax.security.jacc_1.0.0.0_1-1.jar;C:\oracle\MiddlewareNew\modules\javax.xml.registry_1.0.0.0_1-0.jar;C:\oracle\MiddlewareNew\wlserver_10.3\server\lib\weblogic.jar -javaagent:C:\oracle\MiddlewareNew\jdeveloper\modules\oracle.toplink_11.1.1\eclipselink.jar SAM.CMAUTONUMGENClient
java.lang.reflect.InvocationTargetException
     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 sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:323)
     at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:338)
Caused by: java.lang.reflect.InvocationTargetException
     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 org.eclipse.persistence.internal.jpa.deployment.JavaSECMPInitializerAgent.initializeFromAgent(JavaSECMPInitializerAgent.java:45)
     at org.eclipse.persistence.internal.jpa.deployment.JavaSECMPInitializerAgent.premain(JavaSECMPInitializerAgent.java:38)
     ... 6 more
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [SAM_CM_AUTONUM_GEN] failed.
Internal Exception: Exception [EclipseLink-7161] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Entity class [class oracle.SamCmAutonumGen] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass. If you have defined PK using any of these annotations then please make sure that you do not have mixed access-type (both fields and properties annotated) in your entity class hierarchy.
     at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:870)
     at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:101)
     at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.initPersistenceUnits(JPAInitializer.java:149)
     at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.initialize(JPAInitializer.java:135)
     at org.eclipse.persistence.internal.jpa.deployment.JavaSECMPInitializer.initializeFromAgent(JavaSECMPInitializer.java:145)
     ... 12 more
Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [SAM_CM_AUTONUM_GEN] failed.
Internal Exception: Exception [EclipseLink-7161] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Entity class [class oracle.SamCmAutonumGen] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass. If you have defined PK using any of these annotations then please make sure that you do not have mixed access-type (both fields and properties annotated) in your entity class hierarchy.
     at org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:210)
     ... 17 more
Caused by: Exception [EclipseLink-7161] (Eclipse Persistence Services - 1.0.2 (Build 20081024)): org.eclipse.persistence.exceptions.ValidationException
Exception Description: Entity class [class oracle.SamCmAutonumGen] has no primary key specified. It should define either an @Id, @EmbeddedId or an @IdClass. If you have defined PK using any of these annotations then please make sure that you do not have mixed access-type (both fields and properties annotated) in your entity class hierarchy.
     at org.eclipse.persistence.exceptions.ValidationException.noPrimaryKeyAnnotationsFound(ValidationException.java:1245)
     at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.validatePrimaryKey(EntityAccessor.java:1173)
     at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:486)
     at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:443)
FATAL ERROR in native method: processing of -javaagent failed
     at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:303)
     at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:830)
     ... 16 more
Exception in thread "main" Process exited with exit code 1.

Hi,
you may want to try the J2EE forum here on OTN in case you don't get a sufficient answer to the problem.
Frank

Getting the JAXB exception like "Two classes have the same XML type name-"

Getting the JAXB exception like "Two classes have the same XML type name...",
Here is the exception details:
Exception in thread "main" com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions Two classes have the same XML type name "city". Use @XmlType.name and @XmlType.namespace to assign different names to them. this problem is related to the following location: at com.model.City at public com.model.City com.model.Address.getCurrentCity() at com.model.Address this problem is related to the following location: at com.common.City at public com.common.City com.model.Address.getPreviousCity() at com.model.Address
at com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException$Builder.check(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(Unknown Source) at com.sun.xml.internal.bind.v2.ContextFactory.createContext(Unknown Source) at com.sun.xml.internal.bind.v2.ContextFactory.createContext(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at javax.xml.bind.ContextFinder.newInstance(Unknown Source) at javax.xml.bind.ContextFinder.find(Unknown Source) at javax.xml.bind.JAXBContext.newInstance(Unknown Source) at javax.xml.bind.JAXBContext.newInstance(Unknown Source) at com.PojoToXSD.main(PojoToXSD.java:17)
I took the example like:
package com.model; ---->this package contains 'Address' class and 'City' class
public class Address {
private String areaName; private City currentCity; private com.common.City previousCity;
package com.model;
public class City {
private String cityName;
Another city class in "com.common" package.
package com.common;
public class City {
private String pinCode;
We need to create XSDs and needs to do the Marshalling and unmarshalling with the existing code in our project(like as above example code), code does not have any annotations like "@XmlRootElement/@XmlType" and we can not able to change the source code.
I would like to know is there any solution to fix the above issue or any other ways to create XSDs and marshaling/unmarshalling(like MOXy..etc)?
It would be great if i can get the solution from any one....May thanks in advance.
Thanks,
Satya.

Getting the JAXB exception like "Two classes have the same XML type name...",
Here is the exception details:
Exception in thread "main" com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions Two classes have the same XML type name "city". Use @XmlType.name and @XmlType.namespace to assign different names to them. this problem is related to the following location: at com.model.City at public com.model.City com.model.Address.getCurrentCity() at com.model.Address this problem is related to the following location: at com.common.City at public com.common.City com.model.Address.getPreviousCity() at com.model.Address
at com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException$Builder.check(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.(Unknown Source) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(Unknown Source) at com.sun.xml.internal.bind.v2.ContextFactory.createContext(Unknown Source) at com.sun.xml.internal.bind.v2.ContextFactory.createContext(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at javax.xml.bind.ContextFinder.newInstance(Unknown Source) at javax.xml.bind.ContextFinder.find(Unknown Source) at javax.xml.bind.JAXBContext.newInstance(Unknown Source) at javax.xml.bind.JAXBContext.newInstance(Unknown Source) at com.PojoToXSD.main(PojoToXSD.java:17)
I took the example like:
package com.model; ---->this package contains 'Address' class and 'City' class
public class Address {
private String areaName; private City currentCity; private com.common.City previousCity;
package com.model;
public class City {
private String cityName;
Another city class in "com.common" package.
package com.common;
public class City {
private String pinCode;
We need to create XSDs and needs to do the Marshalling and unmarshalling with the existing code in our project(like as above example code), code does not have any annotations like "@XmlRootElement/@XmlType" and we can not able to change the source code.
I would like to know is there any solution to fix the above issue or any other ways to create XSDs and marshaling/unmarshalling(like MOXy..etc)?
It would be great if i can get the solution from any one....May thanks in advance.
Thanks,
Satya.

How to recover from an exception on a class loaded with a classloader?

I have created a classloader for the purpose of dynamically loading "modules" . The whole application is multithreaded and the separate modules may also run as separate threads. The problem that I am facing is that if one of the modules crashes (does not handle an exception), then the class loader object which loaded the required classes and started the module's thread, cannot be accessed. The thread which attempts to access this class loader freezes. Is there any way to recover from this situation?
Thanks in advance

Ok, let me provide a bit more information. Each "module" is handled by specific class (let's call it ModuleDescriptor), which subclasses the URLClassLoader class. The ModuleDescriptor class is responsible for describing each module, maintain module state information (loaded, unloaded, started, stopped, etc) and also executing some method calls on a specific object of the module, which in essence acts as a means to start or stop the module. Each module is a separate thread and is packaged in a JAR file, which is first downloaded locally. If one of these module threads crashes, then I cannot even call a method of the ModuleDescriptor to perform the necessary unloading bit. Basically, when I can the method that thread of execution halts without an exception or an error or anything. The rest of the application continues working properly (other threads). I find this situation bizarre, because the ModuleDescriptor object and the actual module with the thread that crashed execute on separate threads. If there is any more specific information that I have to provide, please let me know.

Failed to invoke startup class "MyStartup Class"

Hi,
I configured StartUpClass.java in Weblogic server through Admin Console . Also I set the required jar files in the classpath of the server in WL_HOME\server\bin\startWLS.cmd.
This StartUPClass is written to initialize and create the minimum number of objects in the pool, needed for URLConnection using ObjectPooling API.
I am getting Exceptions while starting the server after deployment of the application. I am pasting the full stack trace.
<Feb 1, 2007 9:49:55 AM IST> <Info> <WebLogicServer> <BEA-000377> <Starting WebLogic Server with Java HotSpot(TM) Client VM Version 1.4.2_12-b03 from Sun Microsystems Inc.>
<Feb 1, 2007 9:50:10 AM IST> <Info> <Configuration Management> <BEA-150016> <This server is being started as the administration server.>
<Feb 1, 2007 9:50:10 AM IST> <Info> <Management> <BEA-141107> <Version: WebLogic Server 8.1 SP4 Mon Nov 29 16:21:29 PST 2004 471647
WebLogic XMLX Module 8.1 SP4 Mon Nov 29 16:21:29 PST 2004 471647 >
<Feb 1, 2007 9:50:11 AM IST> <Notice> <Management> <BEA-140005> <Loading domain configuration from configuration repository at D:\bea\user_projects\domains\nessdomain\.\config.xml.>
<Feb 1, 2007 9:50:15 AM IST> <Notice> <Log Management> <BEA-170019> <The server log file D:\bea\user_projects\domains\nessdomain\myserver\myserver.log is opened. All server side log events will be written to this file.>
<Feb 1, 2007 9:50:18 AM IST> <Notice> <Security> <BEA-090082> <Security initializing using security realm myrealm.>
<Feb 1, 2007 9:50:18 AM IST> <Notice> <WebLogicServer> <BEA-000327> <Starting WebLogic Admin Server "myserver" for domain "nessdomain">
<Feb 1, 2007 9:50:31 AM IST> <Warning> <HTTP> <BEA-101248> <[Application: 'D:\MSM\Workspace\MSM2.0Jan9', Module: 'MSM31']: Deployment descriptor "web.xml" is malformed. Check against the DTD: org.xml.sax.SAXParseException: The content of element type "web-app" must match "(icon?,display-name?,description?,distributable?,context-param*,filter*,filter-mapping*,listener*,servlet*,servlet-mapping*,session-config?,mime-mapping*,welcome-file-list?,error-page*,taglib*,resource-env-ref*,resource-ref*,security-constraint*,login-config?,security-role*,env-entry*,ejb-ref*,ejb-local-ref*)". (line 96, column 11).>
<Feb 1, 2007 9:50:31 AM IST> <Warning> <HTTP> <BEA-101248> <[Application: 'D:\MSM\Workspace\MSM2.0Jan9', Module: 'MSM31']: Deployment descriptor "weblogic.xml" is malformed. Check against the DTD: org.xml.sax.SAXParseException: The content of element type "weblogic-web-app" must match "(description?,weblogic-version?,security-role-assignment*,run-as-role-assignment*,reference-descriptor?,session-descriptor?,jsp-descriptor?,auth-filter?,container-descriptor?,charset-params?,virtual-directory-mapping*,url-match-map?,preprocessor*,preprocessor-mapping*,security-permission?,context-root?,wl-dispatch-policy?,servlet-descriptor*,init-as*,destroy-as*)". (line 23, column 20).>
<Feb 1, 2007 9:50:35 AM IST> <Critical> <WebLogicServer> <BEA-000286> <Failed to invoke startup class "MyStartup Class", java.lang.ClassNotFoundException: com.helio.msm.ws.util.StartUpClass
java.lang.ClassNotFoundException: com.helio.msm.ws.util.StartUpClass
     at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:141)
     at weblogic.t3.srvr.StartupClassService.invokeClass(StartupClassService.java:156)
     at weblogic.t3.srvr.StartupClassService.access$000(StartupClassService.java:36)
     at weblogic.t3.srvr.StartupClassService$1.run(StartupClassService.java:121)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
     at weblogic.t3.srvr.StartupClassService.invokeStartupClass(StartupClassService.java:116)
     at weblogic.t3.srvr.PostDeploymentStartupService.resume(PostDeploymentStartupService.java:63)
     at weblogic.t3.srvr.SubsystemManager.resume(SubsystemManager.java:131)
     at weblogic.t3.srvr.T3Srvr.resume(T3Srvr.java:966)
     at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:361)
     at weblogic.Server.main(Server.java:32)
>
<Feb 1, 2007 9:50:36 AM IST> <Error> <Socket> <BEA-000438> <Unable to load performance pack. Using Java I/O instead. Please ensure that wlntio.dll is in: 'D:\j2sdk1.4.2_12\bin;.;C:\WINDOWS\system32;C:\WINDOWS;D:\j2sdk1.4.2_12\bin;c:\windows\system32;C:\apache-ant-1.6.5\bin;'
>
<Feb 1, 2007 9:50:36 AM IST> <Notice> <WebLogicServer> <BEA-000331> <Started WebLogic Admin Server "myserver" for domain "nessdomain" running in Development Mode>
<Feb 1, 2007 9:50:36 AM IST> <Notice> <WebLogicServer> <BEA-000360> <Server started in RUNNING mode>
<Feb 1, 2007 9:50:36 AM IST> <Notice> <WebLogicServer> <BEA-000355> <Thread "ListenThread.Default" listening on port 7001, ip address *.*>
<Feb 1, 2007 9:50:55 AM IST> <Warning> <Socket> <BEA-000402> <There are: 5 active sockets, but the maximum number of socket reader threads allowed by the configuration is: 4. You may want to alter your configuration.>
Please help me in resolving this problem. I need it asap
Thanks,
Dharani

I should be more specific and have a bit more to add....
We have our app in an .ear file. I find that when I put the startup
classes in a seperate directory which is in the classpath specified in the
startWeblogic.cmd file they will be run on startup. I don't think I should
have to do this since these files exist in the ear file. I think this is
causing other problems too such as an illegalAccessError I get when an EJB
tries to load a class which was previously accessed by the startup classes.
Thanks,
Steve
Steve Snodgrass wrote:
Hi,
I am beggining to upgrade our app from Weblogic 5.1 to 6.0. So far it
has been progressing nicely and everything works with one exception. I
can not get the start up classes to run. I get the following exception:
<Failed to invoke startup class "MyStartup Class",
java.lang.ClassNotFoundException:
followed by my fully qualified class name. The class is reference
elsewhere in the code and works fine. Is a seperate classpath used for
startup classes? If not why might Weblogic have a hard time finding my
class?
Thanks,
Steve

IE Applet: load: class jreCheck.class not found.

Applets are not working in IE. The console gives the following trace
Java Plug-in 1.6.0_05
Using JRE version 1.6.0_05 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\adf
load: class jreCheck.class not found.
java.lang.ClassNotFoundException: jreCheck.class
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Exception in thread "Thread-13" java.lang.NullPointerException
     at sun.plugin.util.AnimationPanel.createTranslucentImage(Unknown Source)
     at sun.plugin.util.AnimationPanel.createGradientShapeImage(Unknown Source)
     at sun.plugin.util.AnimationPanel.initBackground(Unknown Source)
     at sun.plugin.util.AnimationPanel.preloadResources(Unknown Source)
     at sun.plugin.util.AnimationPanel.doPaint(Unknown Source)
     at sun.plugin.util.AnimationPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
load: class jreCheck.class not found.
java.lang.ClassNotFoundException: jreCheck.class
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
I have tried uninstalling, reinstalling, restarting IE etc, tried removed the sun folder from application data, none of which has not helped.
IE version 7.0.5730.11
How can I fix this?
Thanks

This line from your error next could require control for the version in the "java control panel" of the jre(s).
network: Connecting http://www.cmol.nbi.dk/models/epitrans/transcript.class with proxy=HTTP @ <REMOVED>
note the proxy= and look in Network Settings in the *"java control panel"* (not the output panel).

Class jreVerify.class not found

My Java is not working correctly. Below are the details. If anyone can help . . . pleeeeeze!
Thank you.
Java Plug-in 1.6.0_21
Using JRE version 1.6.0_21-b07 Java HotSpot(TM) Client VM
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
load: class jreVerify.class not found.
java.lang.ClassNotFoundException: jreVerify.class
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed:http://java.com/jsp_utils/jreVerify/class.class
     at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 9 more
Exception: java.lang.ClassNotFoundException: jreVerify.class

More details are needed. How applet is deployed (post html snippet and JNLP if you use JNLP).

Instanciation of nested class using Class.newInstance();

I am having a problem to instanciate a nested class using Class
new instance method. The problem is as follows:
class A {
public static class B {
String xxx;
class Instance {
public static void main ( String args []) {
String name = "A"
Class name_class = Class.forName(name);
Object name_object = name_class.newInstance();
Class [] in_classes = name_class.getClasses();
for (i =0; i < in_classes.length; i ++) {
Class inner = in_classes ;
System.out.println("class =" + inner.getName());
Here: Object inner_object = inner.newInstance();
An exception is thown at <Here> line where the newInstance is called
on nested class.
Anybody run into this problem, please help.
Thanks

Well, it seems to work for me :D
public class Test {
     public static void main ( String args []) {
          try {
               String name = "A";
               Class name_class = Class.forName(name);
               Object name_object = name_class.newInstance();
               Class [] in_classes = name_class.getClasses();
               for (int q =0; q < in_classes.length; ++q) {
                    Class inner = in_classes [q];
                    System.out.println("class =" + inner.getName());
                    A.B inner_object = (A.B) inner.newInstance();
                    System.out.println (inner_object.xxx);
          } catch (final Exception e) {
               e.printStackTrace ();
               System.out.println (e.getMessage ());
class A {
     public static class B {
          public String xxx = "Hi";
}

Can't load class with Class.forName()

Hi, can somebody help me with this problem. I have clas copiled with jdk 1.3.1 (I also test it with jdk 1.4.1). If I try to load a Class instance with Class.forName("package.app.MyClass)") I have a runtime exception:
java.lang.ClassNotFoundException: com.unisys.ebs.all.ispecs.GD130IspecModel
     at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(URLClassLoader.java:183)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:294)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:250)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:310)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:115)
     at com.unisys.util.ObjectLoader.load(ObjectLoader.java:60)
     at com.unisys.jellybeans.IspecFactory.getIspec(IspecFactory.java:74)
     at com.unisys.jellybeans.LINCEnvironment.getIspec(LINCEnvironment.java:1012)
     at com.unisys.ebs.middleware.TestLinc.initConnection(TestLinc.java:52)
     at com.unisys.ebs.middleware.TestLinc.main(TestLinc.java:106)
but if instead of this I instantiate the class calling the constructor and writing an import sentence, it works fine. I really need to instantiate this class via Class.forName because it extends a superclass and know the class to instantiate only at runtime. I will appreciate any help. Thanks.
Pablo Antonioletti

I removed the import in the file header and wrote this code:
try{
ispecModel = new com.unisys.ebs.all.ispecs.GD130IspecModel();
Class ispecClass = Class.forName("com.unisys.ebs.all.ispecs.GD130IspecModel.class");
catch(Exception e)
e.printStackTrace();
the new sentence work fine, if write mor code I can access methods and members. When the runtime execute the Class.forName sentence the exception is thrown. I put all in the same file and class to avoid mistakes typing class path.
This is very rare I never seen it before and I developed java application since five years ago.

Evaluation Class, Cumulations Class, & processing class: Indian Payroll

Dear All.,
Indian Payroll
What are the Evaluation Class, Cumulations Class, & processing class we need to maintain for ESI Eligibility for a Wage Type ?
Scenario : Except LTA all other Salary Components(as part of Infotype 8) consider for ESI Eligibiilty. So I wanted to check all other WTs.
Pls guide me how do i can deal with this.

Use t-code PC00_M99_DLGA20 to generate the "Use of WT in Payroll" report, for Country Grouping 40, without specifying any WT, and using the WT Validity Dates from Today to Today.
When the report is on screen, double click on "Meaning of processing classes and their values".
Click on any character in the report's description of Processing Class 01, and use the Binoculars to search for ESI. The system should show 4 "hits", all on PrCl 72.
I don't know anything of Indian Payroll, but it would seem that PrCl 72 is relevant for ESI. Use this report to see what WTs cumulate or don't cumulate into ESI/PTX basis (drill down in each line of PrCl 72).

Is nested class = derived class?

When I am playing around with nestedclasses, I found an interesting thing:
public class NestedInterfaceDemo implements NestedInterfaceDemo.i1{
      interface i1{
      public void method1();
      public void method1(){
      System.out.println("Hello!");}
}Because whenever we want to, say, make an inner object of an inner static class type, we always do Outer.Inner inner = new Outer.Inner().
ANd if I change the Outer class to something else, say Outer.Inner inner = new BlaBla.Inner(), the compiler will say it cant find package BlaBla.
so this kinda tells me the nestedclass has a package of a name of its outerclass. so the inner class fully qualified name would be Outer.Inner
If I do the above code like this:
public class NestedInterfaceDemo implements i1{
      interface i1{
      public void method1();
      public void method1(){
      System.out.println("Hello!");}
}the compiler will say it cant resolve symbol i1.
Now if I change it to the first code, the compiler says different, yet interesting thing:
cyclic inheritance involving NestedInterfaceDemo
line: public class NestedInterfaceDemo implements NestedInterfaceDemo.i1{
From this, it should imply that the compiler can resolve the i1 interface, but does the "cyclic inheritance" mean that i1 interface also inherits from NestedInterfaceDemo??

Hello caspar again, so I retry helping you in another thread, perhaps I overreacted or misinterpreted something in the other thread. You know, my english is not the best. Perhaps I did not get you right.
ANd if I change the Outer class to something else,
say Outer.Inner inner = new BlaBla.Inner(),
the compiler will say it cant find package BlaBla.
so this kinda tells me the nestedclass has a package
of a name of its outerclass. so the inner class fully
qualified name would be Outer.Inner
Assume we have the following:
package mypackage;
class Outer {
class Inner {
}The full qualified class name of Inner is mypackage.Outer.Inner.
The java compiler cannot tell only from syntax if an element in such expression is a package or class or an inner class. It says it cant find package BlaBla in your example, because it assumed it would be a package. A better error message of the compiler would have been: "cannot find package or class BlaBla".
Beg the compiler to be more clear ;-)
This can be a little confusion with inner classes, but there is a naming convention that helps us to distinguish: class names start with upper letters, packages with lower. But still the compiler cannot know.
I hope this could help at least a little.
From this, it should imply that the compiler
can resolve the i1 interface, but does the
"cyclic inheritance" mean that i1 interface also
inherits from NestedInterfaceDemo??No, i don't know, why Java does not allow this.
if does not inherit from NestedInterfaceDemo.
Your construction could work in runtime if Java would allow.
Does anybody know any reason except for bad style?
regards

What is the field and Table for "Batch Class" and "Class Type" in QM.

Hi All,
What is the field and Table for "Batch Class" and "Class Type" in QM.
Thanks,

Hi,
For batch class the class type value is '023' . This you can find from KLAH table and the fileld for class type is KLART..
And also all the data related to batch class are found in tables INOB, KLAH,KKSK and for the characeteristics of batch materials you can refer AUSP table.
In INOB table, for batch class, you need to give 023 in KLART field and value MCH1 in OBTAB filed.
Please check this and let me know if this you need any more details?

Message Error in classification (class REL_PREQ_ITEM class type 032

Hi gurus,
Can anybody plz explain me to solve the following message. This comes when i hit the classification button in the release strategies step in the release procedure
Error in classification (class REL_PREQ_ITEM class type 032
Thanks
Anusha

I made changes to 4 strategies in the development client and they seemed to work fine. so i pushed them to quality system. and now out of the 4 startegies for two strategies i get this message. When i mean i changed the strategy in the development client, i refer to the characteristics on the classification of a release startegy, i replaced a purchasing group and changed the dollar amount out of the chracterisitics doc type, account assignemnt category, total dollar value, purchasing group and plant. I tested to make sure that the release startegy kicks off when all the conditions are met for that startegy in pur req in the development environment. But now this does not happen in the quality system. I get that message and also the release startegy is not getting kicked off in the quality environment
Thanks
Anusha

Error in adding attachment to the workitem. load:class Query.class not foun

Hi,
We are using WebGui to access the Business Workplace(SBWP transaction) through Portal. For any work item, when i try to import a file from the local PC, i get a screen with the header -"Enter Some FIle attributes". Text displayed in the screen is "Please wait. You will be forwarded automatically. This page had to be included for techincal reasons". And i am struck in that screen. I believe a java popup winddow should come up at this point to select the PC File but it never happened. The screen also has a status message "
Loading Java applet failed. Applet Query.class not inited ".
WHen i look at the java console, i find the following error trace. Please let me know if anybody experienced this problem before and how to fix it. Thanks for the help.
Trace ---
load: class Query.class not found.
java.lang.ClassNotFoundException: Query.class
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 10 more
Regards
hari

Hi all,
I have encountered same problem in ITS 6.20.
Query.class is packed in ws.jar which is stored at C:\Inetpub\wwwroot\<SID>\sap\its\mimes\webgui\99\applets and C:\Inetpub\wwwroot\<SID>\sap\its\mimes\webgui\2002\applets in ITS server.
I increased the trace level to 3 in the Java console to inevestigate the problem further.
== Java console (Trace level 3 ) ===
network: cache entry not found URL: https://hostname.domain.co.jp:443/sap/its/mimes/webgui/2002/applets/ws.jar、version: null
network: Connect to https://hostname.domain.co.jp:443/sap/its/mimes/webgui/2002/applets/ws.jar (Proxy=DIRECT)
network: Connect to http://hostname.domain.co.jp:443/ (Proxy=DIRECT)
java.net.ConnectException: Connection refused: connect
load: class Query.class not found.
java.lang.ClassNotFoundException: Query.class
==========================
Then I found out that when system tried to load class Qery.class the connection to ITS was refused becase the incorrect protocol ( https ) was chosen. In my case, SSL was not setup, therefore protocol must be http.
I activated http by changing the configuration file for WGate in C:\Program Files\SAP\ITS\6.20\config\ ItsRegistryWGATE.xml
After that, I restarted the WGate by accessing to http://hoostname.domain.co.jp:port/scripts/wgate/wgate-restart to activate the configuration.
And also I restarted the AGate by restarting the Windows Service "SAP ITS Manager - <SID>".
Anyway, the html (BHTML) file that displays the message below is stored at C:\Program Files\SAP\ITS\620\templates\system\dm\itsdoc.html
"Please Wait. You will be forwarded automatically"
"This page has been loaded due to technical Reasons"
Best regards,
Akira

Exception class & Throwable class

Similar Messages

Maybe you are looking for