Java Class unloading

Can anybody clearly explain when exactly a Java class will be unloaded?
The scenario is as follows:
1. Deploy an ear
2. Access the application using the browser
3. Re-deploy the ear
4. Access the same application (same scenario)
it is observed that no class is unloaded after steps 3 and 4. I guess this should not be the case when a re-deployment happens. Can somebody explain the reason????

JobAttributes
public JobAttributes(int copies,
JobAttributes.DefaultSelectionType defaultSelection,
JobAttributes.DestinationType destination,
JobAttributes.DialogType dialog,
String fileName,
int maxPage,
int minPage,
JobAttributes.MultipleDocumentHandlingType multipleDocumentHandling,
int[][] pageRanges,
String printer,
JobAttributes.SidesType sides)
Constructs a JobAttributes instance with the specified values for every attribute.
Parameters
copies - an integer greater than 0.
defaultSelection - DefaultSelectionType.ALL, DefaultSelectionType.RANGE, or DefaultSelectionType.SELECTION.
destination - DesintationType.FILE or DesintationType.PRINTER.
dialog - DialogType.COMMON, DialogType.NATIVE, or DialogType.NONE.
fileName - the possibly null file name.
maxPage - an integer greater than zero and greater than or equal to minPage.
minPage - an integer greater than zero and less than or equal to maxPage.
multipleDocumentHandling - MultipleDocumentHandlingType.SEPARATE_DOCUMENTS_COLLATED_COPIES or MultipleDocumentHandlingType.SEPARATE_DOCUMENTS_UNCOLLATED_COPIES.
pageRanges - an array of integer arrays of 2 elements. An array is interpreted as a range spanning all pages including and between the specified pages. Ranges must be in ascending order and must not overlap. Specified page numbers cannot be less than minPage nor greater than maxPage. For example: (new int[][] { new int[] { 1, 3 }, new int[] { 5, 5 }, new int[] { 15, 19 } }), specifies pages 1, 2, 3, 5, 15, 16, 17, 18, and 19. Note that (new int[][] { new int[] { 1, 1 }, new int[] { 1, 2 } }), is an invalid set of page ranges because the two ranges overlap.
printer - the possibly null printer name.
sides - SidesType.ONE_SIDED, SidesType.TWO_SIDED_LONG_EDGE, or SidesType.TWO_SIDED_SHORT_EDGE.
Throws
IllegalArgumentException if one or more of the above conditions is violated.

Similar Messages

Cannot locate Java class oracle.tip.adapter.db.DBWriteInteractionSpec

I have created a BPEL process in which i have used DB Adapter when i try to deploy the soa suite coposite i am getting the following error.
[09:36:10 PM] Error deploying archive sca_TicketBooking_rev1.0.jar to partition "default" on server soa_server1 [http://utl-7c8735e613f:8001]
[09:36:10 PM] HTTP error code returned [500]
[09:36:10 PM] Error message from server:
There was an error deploying the composite on soa_server1: [JCABinding] [TicketBooking.TicketBooking/1.0]Unable to complete unload due to: Cannot locate Java class oracle.tip.adapter.db.DBWriteInteractionSpec: Cannot locate Java class oracle.tip.adapter.db.DBWriteInteractionSpec.
[09:36:10 PM] Check server log for more details.
[09:36:10 PM] Error deploying archive sca_TicketBooking_rev1.0.jar to partition "default" on server soa_server1 [http://utl-7c8735e613f:8001]
[09:36:10 PM] #### Deployment incomplete. ####
[09:36:10 PM] Error deploying archive file:/D:/Personal/OracleWork/RnDProjects/TicketBooking/TicketBooking/deploy/sca_TicketBooking_rev1.0.jar
(oracle.tip.tools.ide.fabric.deploy.common.SOARemoteDeployer)
I already created the data source and JNDI Name in the DBAdapter but still getting the error while deploying the application.
One mistake that i think i have made after creating the data source now the DBAdapter.rar file taking the path as follows.
Source Path: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ was\ DbAdapter. rar
Deployment Plan: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ was\ Plan. xml
initially the path was as follows:
Source Path: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ DbAdapter. rar
Deployment Plan: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ Plan. xml
Please help me i have googled a lot but can't find the answer anywhere.
Thanks in advance

Mate ,
Just check the health status and state of DB Adapter in the deployments of WLAdminConsole.
If its inactive , redeploy and update it ,also make sure its targeted to the right server.

Class unloading doesn't work as described in this forum !!!

Hi,
to the problem of dynamic class unloading many people in this forum wrote:
- write your own class loader
- load the class to be unloaded later
- set all instances of your own class loader to null
- if the work is done set all instances of the loaded classes to null
- call the garbage collector and the classes will be removed
I constructed a simple test for the problem:
- the test class
public class Impl {
public String getVersion () {
return "1";
- instanciating the test class
- printing the value of getVersion() to the screen
- changing the return value of getVersion() and recompiling it (the test application is still runnig)
- unload try (see below)
- instanciating the test class
- printing the value of getVersion() to the screen
Back to the tipps above. Why doing this? The theory says a class loader stores every loaded class for
suppressing unnecessary reloads. In reality the classes are NOT stored in the own class loader but in
the parent of it. If no parameter is given to a class loader's constructor the parent of a class loader
is the system classloader.
Let's have a look at the source code of java.lang.ClassLoader.loadClass(...):
protected synchronized Class loadClass(String name, boolean resolve)
throws ClassNotFoundException
// First, check if the class has already been loaded
Class c = findLoadedClass(name);
if (c == null) {
try {
if (parent != null) {
### here the loadClass() of the parent is called and the
### loaded class is stored within the parent
c = parent.loadClass(name, false);
} else {
c = findBootstrapClass(name);
} catch (ClassNotFoundException e) {
// If still not found, then call findClass in order
// to find the class.
c = findClass(name);
if (resolve) {
resolveClass(c);
return c;
My Idea was: Give a null to the class loader's constructor so the classes cannot be stored within a parent.
Here my test class loader (it is build as it is described within javadoc of java.lang.ClassLoader
except the constructor):
import java.io.*;
public class MyClassLoader extends ClassLoader {
public MyClassLoader () {
super ( null );
public Class findClass ( String name ) {
byte[] b = loadClassData ( name );
return defineClass ( name, b, 0, b.length );
private byte[] loadClassData ( String name ) {
byte[] ret = null;
try {
InputStream in = new FileInputStream ( name + ".class" );
ret = new byte[in.available ()];
in.read ( ret );
} catch ( Exception e ) {
e.printStackTrace ();
return ret;
The loading of the class works fine
ClassLoader cl = new MyClassLoader ();
Class c = cl.loadClass ( "Impl" );
Object i = c.newInstance ();
Impl impl = (Impl)i;
The class "Impl" was found and instanciated. But the cast "Impl impl = (Impl)i;" causes a
"java.lang.ClassCastException: Impl"
May second idea was deleting all instances of the class to unload from the class loader via reflection.
A strange way I know but if this is the only way I will do it. But this doesn't work too.
After deleting the class from the class loader and all its parents the class is still anywhere in the depth
of the VM.
Can anybody help me with this problem?
Thanks in advance,
Axel.

<pre>
I made a similar and simpler program and it worked:
import java.net.URLClassLoader;
import java.net.URL;
public class DynamicExtension {
     public static void main(String args[]) throws Exception {
          URL[] ua = new URL[] { new URL("file://c:\\TEMP\\") };
          URLClassLoader ucl = new URLClassLoader(ua);
          MyLoadable l =
               (MyLoadable) ucl.loadClass("LoadableObject").newInstance();
          l.printVersion();
          Thread.currentThread().sleep(10000);
//you have ten seconds to replace the old version of the LoadableObject.class file
//so yo?d better had compiled the new one before executing this
          ucl = new URLClassLoader(ua);
          l = (MyLoadable) ucl.loadClass("LoadableObject").newInstance();
          l.printVersion();
          ucl = null;
          l = null;
          System.gc();
public class LoadableObject implements MyLoadable {
     public void printVersion() {
          System.out.println("version 1");
     protected void finalize() {
          System.out.println("finalizing " + this);
public interface MyLoadable {     void printVersion(); }
C:\Java\TIJ2\Test>java DynamicExtension
version 1
version 2
finalizing LoadableObject@1bd03e
finalizing LoadableObject@4abc9
The ClassCastException was due to the fact that one class was loaded by the system class loader, the one that appers as Impl impl = (Impl), and the other by MyClassLoader. That mean that they are different for the VM because they are in different namespaces: The namespace for MyClassLoader is the set of classes loaded by itself and those returned to it by his parent class loader as a result of a request to MyClassLoader?s parent class loader to load a class.
Setting null for the parent of MyClassLoader was in fact the cause of the problem, because that caused a call to a native method called findBoostrapClass. I guess this method looks for the classes in the bootstrap classpath where MyClassLoader shouldn?t be. This causes MyClassLoader loaded the class itself. If MyClassLoader had had the system class loader as its parent the result had been that only one classloader would have loaded the class. This is what happens in the example above so no ClassCastException is thrown.
In the source code for ClassLoader
there is the following:
* The classes loaded by this class loader. The only purpose of this
* table is to keep the classes from being GC'ed until the loader
* is GC'ed.
private Vector classes = new Vector(); /*
and:
* Called by the VM to record every loaded class with this loader.
void addClass(Class c) {
classes.addElement(c);
I would like to have seen findLoadedClass checking the already loaded classes in this Vector, but this method is native. Anyway, as the code for loadClass shows, the parent or bootstrap classloader is checked if findLoadedClass doesn?t find the class; Can we guess that findLoadedClass only checks the clases loaded by the classloader, not its parent?
By the way, could an example like this be made in c++?
</pre>

Dynamic class unloading

i need to re-load / update some dynamically loaded classes. the error code i get when i try
to load a new version without "unloading" old version:
Exception in thread "main" java.lang.LinkageError: loader (instance of MyClassLoader): attempted duplicate class definition for name: "net/aaa/bbb/ccc/MyClassName"
at java.lang.ClassLoader.defineClass1(Native Method)
i reviewed this page:
http://blog.taragana.com/index.php/archive/how-to-unload-java-class/
but it has the phrase:
After you are done with the class you need to release all references to the class ...
i do not understand what this means with regards to how reflection works.
a class cannot know all the objects that it created. but objects have handles their class.
so what then do you do? create a collection of all objects for no reason other to identify
the handles pointing to the class object that needs reloading to null ?
for sure that starting a new jvm can resolve this.
so this is my technique:
send message over network to server that causes the server to:
(1) start a second jvm that is a twin.
(2) exit, and still have the twin jvm running.
i have tried something like this:
machine #1:
Socket sok = new Socket("192.168.0.2", 5432);
ObjectOutputStream oos = new ObjectOutputStream(sok.getOutputStream());
oos.writeObject("/tmp/reboot.exe");
machine #2:
Socket sok = serverSocket.accept();
ObjectInputStream ois = new ObjectInputStream(sok.getInputStream());
Sting cmd = (String) ois.readObject();
Runtime rt = Runtime.getRuntime();
rt.exec(cmd);
rt.exit(0);*# cat /tmp/reboot.exe*
+/usr/bin/java Server &+
note that my executing: */usr/bin/java Server &* works correctly when i type from shell.
i don't get errors.
rather, the first jvm exits, and the twin does not seem to start.
the security risks are a non-issue for me. thanks.
Edited by: kappa9h on Feb 26, 2008 2:24 AM

ok. i don't have it working just yet, but the understanding i work in is that a class's
namespace is not the package name alone. in reality, it is:
( net.kappa9h.test.MyClass ) + (class loader)
in so doing, i can have, in the same jvm , two objects that are instances of :
net.kappa9h.test.MyClass
but have different internal logic.
note:
i always use same interface.
and do not need an instance of the original net.kappa9h.test.MyClass to exist at same
time as updated version of net.kappa9h.test.MyClass .
note:
with regard to original response. thank you for this. however, i cannot use timer method. i need to
allow clients to signal servers to flush their dynamically loaded classes (that are cached), and re-load a newer version from a class server.
and i don't need to carry state. so i could just start a twin and then commit hara-kiri.
EDIT: One can not even say c r a p?? What the hell?i don't understand, but i hope i do not post something wrong in original post.
thanks for assisting in this confounding problem.

Cannot locate Java class oracle.tip.adapter.jms.outbound.JmsProduceInteract

Hi team ,
I am trying to developing the JMS queue in BPEL. For it, i configure JMS adapter in BPEL. compilation done sucessfully.
But during deployement , i am getting the following error.
[12:21:06 PM] HTTP error code returned [500]
[12:21:06 PM] Error message from server:
There was an error deploying the composite on soa_server1: [JCABinding] [textmessageusingqueues.enqueue/1.0]Unable to complete unload due to: Cannot locate Java class oracle.tip.adapter.jms.outbound.JmsProduceInteractionSpec: Cannot locate Java class oracle.tip.adapter.jms.outbound.JmsProduceInteractionSpec.
So please resolve my problem.
Regards
Narsi p

Mate ,
Just check the health status and state of DB Adapter in the deployments of WLAdminConsole.
If its inactive , redeploy and update it ,also make sure its targeted to the right server.

PermGen not full but full GC triggerred and classes unloaded

We have a recurring problem where a full GC gets triggered that is quite long (7 seconds). By observation, it seems that a great deal of the full GC time is spent unloading "sun.reflect.GeneratedSerializationConstructorAccessor" classes. However, we have PermSize set to 64 meg and it seems that only 9 megs are actually in use. All the other GCs for the day (about 8.5 hours till the problem) are fairly short (0.10 to 0.35 seconds)
Any hints as to what is triggering this long GC and how I can avoid it? I know stopping class garbage collection could help, but I am not finding enough information on the risks of doing this. Plus I thought the PermGeneration contained the classes, not the tenured generation.
Thanks.
-- 2
Details
Solaris 2.8, dual CPU UltraSparc IIIi with 1MB cache each
8 GB RAM
Java 1.5.0_06
Runtime args:
-Xms1280m -Xmx1280m -server -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+DisableExplicitGC -XX:+PrintGCApplicationStoppedTime -XX:PermSize=64m
"jmap -h" result (sometime after Full GC):
Server compiler detected.
JVM version is 1.5.0_06-b05
using thread-local object allocation.
Parallel GC with 2 thread(s)
Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 1342177280 (1280.0MB)
NewSize = 2228224 (2.125MB)
MaxNewSize = 4294901760 (4095.9375MB)
OldSize = 1441792 (1.375MB)
NewRatio = 2
SurvivorRatio = 32
PermSize = 67108864 (64.0MB)
MaxPermSize = 67108864 (64.0MB)
Heap Usage:
PS Young Generation
Eden Space:
capacity = 106496000 (101.5625MB)
used = 24655256 (23.513084411621094MB)
free = 81840744 (78.0494155883789MB)
23.151344651442308% used
From Space:
capacity = 196608 (0.1875MB)
used = 134808 (0.12856292724609375MB)
free = 61800 (0.05893707275390625MB)
68.56689453125% used
To Space:
capacity = 14483456 (13.8125MB)
used = 0 (0.0MB)
free = 14483456 (13.8125MB)
0.0% used
PS Old Generation
capacity = 894828544 (853.375MB)
used = 627750416 (598.6694488525391MB)
free = 267078128 (254.70555114746094MB)
70.15315059060075% used
PS Perm Generation
capacity = 67108864 (64.0MB)
used = 9422208 (8.9857177734375MB)
free = 57686656 (55.0142822265625MB)
Verbose GC:
987745K->852246K(1032576K), 0.1995592 secs]
Total time for which application threads were stopped: 0.2016224 seconds
24998.391: [GC [PSYoungGen: 153190K->6928K(149952K)] 996182K->859364K(1023808K), 0.1852391 secs]
Total time for which application threads were stopped: 0.1872944 seconds
25102.514: [GC [PSYoungGen: 149904K->6384K(156864K)] 1002340K->865912K(1030720K), 0.1630581 secs]
25102.677: [Full GC[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor7]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor14]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor12]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor10]
[Unloading class sun.reflect.GeneratedMethodAccessor1]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor8]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor6]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor4]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor2]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor11]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor24]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor21]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor13]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor16]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor9]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor3]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor23]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor1]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor22]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor5]
[PSYoungGen: 6384K->0K(156864K)] [PSOldGen: 859528K->375378K(873856K)] 865912K->375378K(1030720K) [PSPermGen: 9192K->9192K(65536K)], 7.0877752 secs]
Total time for which application threads were stopped: 7.2531067 seconds
25210.000: [GC [PSYoungGen: 142016K->5680K(146688K)] 517394K->381058K(1020544K), 0.0708419 secs]

[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor5 ]
[PSYoungGen: 6384K->0K(156864K)] [PSOldGen: 859528K->375378K(873856K)] 865912K->375378K(1030720K) [PSPermGen: 9192K->9192K(65536K)], 7.0877752 secs]Despite the messages about unloading classes, it is unlikely that class unloading
is taking up any significant amount of the 7 seconds. The last line quoted above
shows the old generation (PSOldGen) had 859528K used before GC and
375378K used after GC. Reclaiming the ~470MB in the old gen took the
majority of the time.
This GC is caused by the fact that your old gen became nearly full, or at least
full enough that the JVM decided that the next young generation GC would
fill up the old generation.
Since you are using 1.5.0_06 you can try using the parallel compacting collector
to do these Full GCs in parallel. It should reduce the time somewhat if you have 2
cpus, and even more if you have 4 or more cpus (or hardware threads).
To enable it, add the option -XX:+UseParallelOldGC.
If that does not meet your needs or if you have strict limits on GC pause times,
then you should try using the concurrent collector. See section
5.4,The Concurrent Low Pause Collector, in the 5.0 tuning guide at
http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html

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java.lang.StackTraceElement does not have a no-arg default constructor.
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at public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()
at java.lang.Throwable
at public java.lang.Throwable com.gehc.util.jaxws.WorkflowExceptionBean.rootCause
at com.gehc.util.jaxws.WorkflowExceptionBean
at com.sun.xml.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:151)
at com.sun.xml.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:95)
... 51 more
Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
java.lang.StackTraceElement does not have a no-arg default constructor.
this problem is related to the following location:
at java.lang.StackTraceElement
at public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()
at java.lang.Throwable
at public java.lang.Throwable com.gehc.util.jaxws.WorkflowExceptionBean.rootCause
at com.gehc.util.jaxws.WorkflowExceptionBean
at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:102)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:478)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:308)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1149)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:169)
at com.sun.xml.bind.api.JAXBRIContext.newInstance(JAXBRIContext.java:160)
at com.sun.xml.ws.developer.JAXBContextFactory$1.createJAXBContext(JAXBContextFactory.java:74)
at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:159)
at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:151)
... 53 more
:com.sun.xml.bind.v2.runtime.IllegalAnnotationsException:1 counts of IllegalAnnotationExceptions.
[08:44:23 PM] Weblogic Server Exception: weblogic.application.ModuleException: [HTTP:101216]Servlet: "CustomWorkListUtilSoap12HttpPort" failed to preload on startup in Web application: "WorklistWebService-CustomWorklist-context-root.war".
javax.xml.ws.WebServiceException: Unable to create JAXBContext
at com.sun.xml.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:164)
at com.sun.xml.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:94)
at com.sun.xml.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:281)
at com.sun.xml.ws.server.EndpointFactory.createSEIModel(EndpointFactory.java:363)
at com.sun.xml.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:202)
at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:496)
at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:539)
at weblogic.wsee.jaxws.JAXWSDeployedServlet.getEndpoint(JAXWSDeployedServlet.java:183)
at weblogic.wsee.jaxws.JAXWSServlet.registerEndpoint(JAXWSServlet.java:135)
at weblogic.wsee.jaxws.JAXWSServlet.init(JAXWSServlet.java:64)
at weblogic.wsee.jaxws.JAXWSDeployedServlet.init(JAXWSDeployedServlet.java:55)
at javax.servlet.GenericServlet.init(GenericServlet.java:242)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:283)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:64)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:539)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1985)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1959)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1878)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3154)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1508)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:485)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:427)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:201)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:249)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:427)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:28)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:637)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:205)
at weblogic.application.internal.SingleModuleDeployment.activate(SingleModuleDeployment.java:43)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:569)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:150)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:116)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:323)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:844)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1253)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:440)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:164)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:195)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:13)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:69)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: java.security.PrivilegedActionException: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
java.lang.StackTraceElement does not have a no-arg default constructor.
this problem is related to the following location:
at java.lang.StackTraceElement
at public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()
at java.lang.Throwable
at public java.lang.Throwable com.gehc.util.jaxws.WorkflowExceptionBean.rootCause
at com.gehc.util.jaxws.WorkflowExceptionBean
at com.sun.xml.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:151)
at com.sun.xml.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:95)
... 51 more
Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
java.lang.StackTraceElement does not have a no-arg default constructor.
this problem is related to the following location:
at java.lang.StackTraceElement
at public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()
at java.lang.Throwable
at public java.lang.Throwable com.gehc.util.jaxws.WorkflowExceptionBean.rootCause
at com.gehc.util.jaxws.WorkflowExceptionBean
at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:102)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:478)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:308)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1149)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:169)
at com.sun.xml.bind.api.JAXBRIContext.newInstance(JAXBRIContext.java:160)
at com.sun.xml.ws.developer.JAXBContextFactory$1.createJAXBContext(JAXBContextFactory.java:74)
at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:159)
at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:151)
... 53 more
:com.sun.xml.bind.v2.runtime.IllegalAnnotationsException:1 counts of IllegalAnnotationExceptions
[08:44:23 PM] Caused by: java.lang.Throwable: Substituted for the exception java.security.PrivilegedActionException which lacks a String contructor, original message - com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
java.lang.StackTraceElement does not have a no-arg default constructor.
this problem is related to the following location:
[08:44:23 PM] See server logs or server console for more details.
[08:44:23 PM] weblogic.application.ModuleException: [HTTP:101216]Servlet: "CustomWorkListUtilSoap12HttpPort" failed to preload on startup in Web application: "WorklistWebService-CustomWorklist-context-root.war".
javax.xml.ws.WebServiceException: Unable to create JAXBContext
at com.sun.xml.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:164)
at com.sun.xml.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:94)
at com.sun.xml.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:281)
at com.sun.xml.ws.server.EndpointFactory.createSEIModel(EndpointFactory.java:363)
at com.sun.xml.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:202)
at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:496)
at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:539)
at weblogic.wsee.jaxws.JAXWSDeployedServlet.getEndpoint(JAXWSDeployedServlet.java:183)
at weblogic.wsee.jaxws.JAXWSServlet.registerEndpoint(JAXWSServlet.java:135)
at weblogic.wsee.jaxws.JAXWSServlet.init(JAXWSServlet.java:64)
at weblogic.wsee.jaxws.JAXWSDeployedServlet.init(JAXWSDeployedServlet.java:55)
at javax.servlet.GenericServlet.init(GenericServlet.java:242)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:283)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:64)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:58)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:48)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:539)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1985)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1959)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1878)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3154)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1508)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:485)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:427)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
at weblogic.application.internal.flow.ScopedModuleDriver.start(ScopedModuleDriver.java:201)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:249)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:427)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.flow.ModuleStateDriver.start(ModuleStateDriver.java:119)
at weblogic.application.internal.flow.StartModulesFlow.activate(StartModulesFlow.java:28)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:637)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:52)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:205)
at weblogic.application.internal.SingleModuleDeployment.activate(SingleModuleDeployment.java:43)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:161)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:569)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:150)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:116)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:323)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:844)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1253)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:440)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:164)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:195)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:13)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:69)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: java.security.PrivilegedActionException: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
java.lang.StackTraceElement does not have a no-arg default constructor.
this problem is related to the following location:
at java.lang.StackTraceElement
at public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()
at java.lang.Throwable
at public java.lang.Throwable com.gehc.util.jaxws.WorkflowExceptionBean.rootCause
at com.gehc.util.jaxws.WorkflowExceptionBean
at com.sun.xml.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:151)
at com.sun.xml.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:95)
... 51 more
Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
java.lang.StackTraceElement does not have a no-arg default constructor.
this problem is related to the following location:
at java.lang.StackTraceElement
at public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()
at java.lang.Throwable
at public java.lang.Throwable com.gehc.util.jaxws.WorkflowExceptionBean.rootCause
at com.gehc.util.jaxws.WorkflowExceptionBean
at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:102)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:478)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:308)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1149)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:169)
at com.sun.xml.bind.api.JAXBRIContext.newInstance(JAXBRIContext.java:160)
at com.sun.xml.ws.developer.JAXBContextFactory$1.createJAXBContext(JAXBContextFactory.java:74)
at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:159)
at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:151)
... 53 more
:com.sun.xml.bind.v2.runtime.IllegalAnnotationsException:1 counts of IllegalAnnotationExceptions
[08:44:23 PM] #### Deployment incomplete. ####
[08:44:23 PM] Remote deployment failed (oracle.jdevimpl.deploy.common.Jsr88RemoteDeployer)

javax.xml.ws.WebServiceException: Unable to create JAXBContext
Webservice: Unable to create JAXBContext
javax.xml.ws.WebServiceException: Unable to create JAXBContext
http://naive-amseth.blogspot.ca/2010/06/error-unable-to-create-jaxbcontext.html

XSLT Mapping with Java class not working in Integration Repository

Hi,
I have an XSLT mapping program with Java enhancement and I was able to successfully tested it in Stylus Studio. However, when I imported the Java class and the xslt program in Enterprise Service Builder and tested it, my program does not compile.
Here is the error message: "Transformer Configuration Exception occurred when loading XSLT mapping_temp.xsl; details: Could not compile stylesheet".
My java program is in a zip file containing SOAPHeaderHandler.java and SOAPHeaderhandler.class. My Java has a package com.nga.xslt.
Here is the declaration of my Java class in the XSLT: xmlns:javamap="java:com.nga.xslt.SOAPHeaderHandler"
It seems that it could not read the java class. Can you please advice what is wrong?

Hi ,
select XMLTOOLKIT option in Operation mapping and execute it.
I am not sure we can call java program in XSLT Program,but alternative is copy the code and use it in XSLT mapping it self,that means your XSLT program will become with JAVA extensions.
then in Operation mapping level select SAPXMLTOOL kit option and execute it. i hope it will work. if it is not working then you have deploy some JAXP files on server,because the way execution of XSLT Mpaping program got changed,like when eve you executing XSLT with extnasions( if you are not using XMLTOOL kit option) then you have to use latest version of JAXP.JDK files.
Regards,
Raj

Java class bean can not access to DB in JSP file

Hi, I wrote a java class bean in order to access to MySql database ,and this bean is used in a JSP file,so that the bean can query from DB and then display the queried information on the JSP file,but it can not work correctly,the following is the source code and error message popup by the system,
does anybody has experience in solving thus question,Please reply ,Thank you for your help.
%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import = "java.sql.*" %>
<jsp:useBean id="conn" scope="page" class="news.conn"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>1</title>
<style>

</style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber1">
<tr>
<td width="100%">
<img border="0" src="images/ruanjian.jpg" width="770" height="154"></td>
</tr>
<tr>
<td width="100%">@</td>
</tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber2">
<tr>
<td width="13%">@</td>
<td width="87%">
<img border="0" src="images/mid-rdxw2.gif" width="101" height="18"><p>
<%
          ResultSet rs,rsNest;
String strSql=null;
strSql = "select * from news where TYPE=1";
          rs = conn.executeQuery(strSql);
          while (rs.next()){
%>
<span class="s"> <a href="newsContent.jsp?newsId=<%=rs.getInt(id")%">"><%=rs.getString("Title")%></a><br>
<%
%>
<p>
<img border="0" src="images/mid-hyxw2.gif" width="94" height="19"></p>
<%
strSql="select * from news where TYPE=2";
          rs = conn.executeQuery(strSql);
          while (rs.next()){
%>
<span class="s"> <a href="newsContent.jsp?newsId=<%=rs.getInt("id")%>"><%=rs.getString("Title")%></a><br>
<%
%>
<p>@</td>
</tr>
</table>
<p align="center">Study Online</p>
<p align="center">@</p>
</body>
</html>
Error message:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /newsMain.jsp:47
44: strSql = "select * from news where TYPE=1";
45:           rs = conn.executeQuery(strSql);
46:
47:           while (rs.next()){
48:
49: %>
50:
Stacktrace:
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:451)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
java.lang.NullPointerException
     org.apache.jsp.newsMain_jsp._jspService(newsMain_jsp.java:98)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.27 l</a>

nogoodatcoding wrote:
Tolls wrote:
Is that Jasper Exception telling us where the problem is in the jsp, though?
If it is, then "rs" is null in the call rs.next()...which means conn.executeQuery() is returning null. Which means that whatever class conn is (news.conn?) has a problem maybe?That's possible. Though, it may just be the case that the 'conn' object itself is null! That line is the first place where it's being used and there are no checks that I can see...we'll have to wait for the OP to investigate and reply I guess.That's what I originally thought, then I noticed it was saying line 47, which is the rs.next() line. Assuming Jasper is correct in its choice of line, then it's the rs that's null. Which means the conn is doing strange things.
Edit: Now that I think about it, going by the previous thread the OP posted, I'm wondering whether news.conn class is their attempt to move the JDBC stuff out of the JSP page, and it's grabbing the "real" connection (java.sql.Connection) and getting the result set and returning it...or getting something wrong and returning null.
Edited by: Tolls on 11-Jun-2009 12:24

How to call a PL/SQL procedure from a Java class?

Hi,
I am new to the E-BusinessSuite and I want to develop a Portal with Java Portlets which display and write data from some E-Business databases (e.g. Customer Relationship Management or Human Resource). These data have been defined in the TCA (Trading Community Architecture) data model. I can access this data with PL/SQL API's. The next problem is how to get the data in the Java class. So, how do you call a PL/SQL procedure from a Java program?
Can anyone let me know how to solve that problem?
Thanks in advance,
Chang Si Chou

Have a look at this example:
final ApplicationModule am = panelBinding.getApplicationModule();
try
     final CallableStatement stmt = ((DBTransaction)am.getTransaction()).
                                                                                     createCallableStatement("{? = call some_pck.some_function(?, ?)}", 10);
     stmt.registerOutParameter(1, OracleTypes.VARCHAR);
     stmt.setInt(2, ((oracle.jbo.domain.Number)key.getAttribute(0)).intValue());
     stmt.setString(3, "Test");
     stmt.execute();
     stmt.close();
     return stmt.getString(1);
catch (Exception ex)
     panelBinding.reportException(ex);
     return null;
}Hope This Helps

Get the relative path for java class

How to get Relative path for java class which is inside in web-inf directory in webapps

ajay.manchu wrote:
Hi gimbal2,
My Requirement is i need to run a java class from batch file,when i created batch file in that i need to mention the complete path of the java class,so instead of mentioning that i want to provide only java class name,thats why i asked that one..
can u help me regarding that....
Thanks in advanceI wonder how that would work then. Let's take a fictive example. You have a class com.mycompany.myapp.Foo. This would mean that the class is stored in some directory like this:
c:/webrootdir/myapp/WEB-INF/classes/com/mycompany/myapp/Foo.classTo be able to run such a class from the commandline using Java, you would have to invoke this command:
java -cp c:/webrootdir/myapp/WEB-INF/classes com.mycompany.myapp.FooHow would knowing the exact path to this class help you?

How do you invoke custom java classes???

Could someone post a detailed method of invoking custom java classes that works including what files go where, settings and the way it is invoked etc.
I have tried various ways from this forum and in the documentation without success. I am using IDM 8. I found these instructions regarding how you would do it if you were writing custom resource adaptors in the deployment tools guide:
To install a resource adapter youve customized:
1. Load the NewResourceAdapter.class file in the Identity Manager installation
directory under
idm/WEB-INF/classes/com/waveset/adapter/sample
(You might have to create this directory.)
2. Copy the .gif file to idm/applet/images.
This .gif file is the image that displays next to the resource name on the List
Resources page, and it should contain an image for your resource that is
18x18 pixels and 72 DPI in size.
3. Add the class to the resource.adapter property in
config/waveset.properties.
4. Stop and restart the application server. (For information about working with
application servers, see Identity Manager Installation.)
I tried the instructions here but placed my custom class in a folder entitled custom instead of /adapter/sample. Not sure about instruction 3 or whether it is relevent. Anyway nothings working.
Edited by: masj78 on Nov 25, 2008 3:50 AM
Edited by: masj78 on Nov 25, 2008 4:03 AM

Hi,
The way to add custom class is the same as you followed , put them in the WEB-INF/classes.
To use the custom adapter ,
Go To Resources - > Configure Types -> Add Custom Resource .
Type in the fully qualified class name of the custom adapter you added.and Save.
Now the new adapter you added should showup in the list of available adapters when you try to
configure a new adapter.
(Make sure that the prototype XML of your custom adapter is correct so that it displays the correct name / type for the adapter in the adapter list.
Thanks,
Balu

How to return Values from Oracle Object Type to Java Class Object

Hello,
i have created an Oracle Object Types in the Database. Then i created Java classes with "jpub" of these types. Here is an example of the type.
CREATE OR REPLACE TYPE person_type AS OBJECT
ID NUMBER,
vorname VARCHAR2(30),
nachname VARCHAR2(30),
geburtstag DATE,
CONSTRUCTOR FUNCTION person_type RETURN SELF AS RESULT,
CONSTRUCTOR FUNCTION person_type(p_id NUMBER) RETURN SELF AS RESULT,
CONSTRUCTOR FUNCTION person_type(p_vorname VARCHAR2,
p_nachname VARCHAR2,
p_geburtstag DATE) RETURN SELF AS RESULT,
MEMBER FUNCTION object_exists(p_id NUMBER) RETURN BOOLEAN,
MEMBER PROCEDURE load_object(p_id NUMBER),
MEMBER PROCEDURE save_object,
MEMBER PROCEDURE insert_object,
MEMBER PROCEDURE update_object,
MEMBER PROCEDURE delete_object
MEMBER PROCEDURE load_object(p_id NUMBER) IS
BEGIN
SELECT p.id, p.vorname, p.nachname, p.geburtstag
INTO SELF.ID, SELF.vorname, self.nachname, SELF.geburtstag
FROM person p
WHERE p.id = p_id;
END;
My problem is, that if i use the member function "load_object" from my java app it doesnt return the selected values to the java class and i dont know why. I use the java class like this:
PersonObjectType p = new PersonObjectType();
p.load_object(4);
There is a reocrd in the database with id = 4 and the function will execute successful. But if i try to use "p.getVorname()" i always get "NULL". Can someone tell me how to do that?
Thanks a lot.
Edited by: NTbc on 13.07.2010 15:36
Edited by: NTbc on 13.07.2010 15:36

CallableStatement =
"DECLARE
a person_type;
BEGIN
a.load_object(4);
? := a;
END;"
And register as an out parameter.
Edited by: michael76 on 14.07.2010 05:01

Java Class unloading

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