Oracle.sql.AnyDataFactory ThreadLocal? causing classloader leak

I am running a standard Jersey (JAX-RS), Spring, JPA, Hibernate, Oracle application on Tomcat.
Hot-redeploys to Tomcat 6.0.32 are causing classloader leaks which you can see with the Find Leaks button on the manager page.
Using jmap and Memory Analyzer Tool, I can see two objects that are keeping the classloader from gc'ing.
The first is that the Diagnosability MBean is not getting unregistered. That is easy to find and unregister.
The other is a ThreadLocal in oracle.sql.AnyDataFactory but as I have no code (and a static field for it is not available), I don't see how to clean that up.
Also the ThreadLocal reporting that Tomcat does doesn't find it which is odd.
Any thoughts? Are other people seeing this?
Brian

Hi, I realize this is an old thread, but I reached the exact same conclusion for a classloader leak in my app and I couldn't find any other solution. Did you?
I found the same two classes: oracle.jdbc.driver.OracleDiagnosabilityMBean and oracle.sql.AnyDataFactory
I guess moving the driver to the global lib folder will solve the redeploy problem but I always found more practical to have the driver in the war.

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I find Oracle SQL Developer's editor keep on freezing as I am writing sql statement on the editor. Is there an option to turn off the freeze.
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Lookforward for your assitance.
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Edited by: user531731 on 29/04/2009 17:30
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Yes, completion insight can have pretty bad performance and worst is the UI doesn't become responsive again until it completes.
I have both turned of, but you can lower the popup speed too, in Preferences - Code Editor - Code Insight. Even when turned off, you can still access it through CTRL-space.
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Java.lang.NoClassDefFoundError: oracle/sql/STRUCT after 11g/GF3.1.2 upgrade

We have recently upgraded all of our servers from:
Java 1.6.31 to 1.6.32
and
Glassfish 3.1.1 to 3.1.2
We upgraded our development server from Oracle 10g to 11g.
Our live servers are working fine. Our development server now is spewing out a java.lang.NoClassDefFoundError: oracle/sql/STRUCT error whenever it encounters a servlet or page which uses this class.
ojdbc14.jar and sdopai.jar were included within the WAR file, and I have tried with them excluded from the WAR file to no avail. We have tried reverting the version of ojdbc.jar on the server to the earlier version, this has made no different.
Any ideas? The full stack trace is below:
[#|2012-05-28T16:15:34.950+0100|WARNING|glassfish3.1.2|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=80;_ThreadName=Thread-2;|StandardWrapperValve[EnterDataSS]: PWC1406: Servlet.service() for servlet EnterDataSS threw exception
java.lang.NoClassDefFoundError: oracle/sql/STRUCT
at oracle.spatial.geometry.JGeometry.load(JGeometry.java:3097)
at Bto.Location.LocatorUtils.JavaScriptifySDO(LocatorUtils.java:97)
at Bto.Chats.Controllers.EnterDataModuleMain.<init>(EnterDataModuleMain.java:136)
at Bto.Chats.SessionBean.initialiseEdm2(SessionBean.java:348)
at Bto.Chats.Servlets.Enter.EnterDataSS.processRequest(EnterDataSS.java:36)
at Bto.Chats.Servlets.ChatsServlet.doGet(ChatsServlet.java:90)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ajp.AjpProcessorTask.invokeAdapter(AjpProcessorTask.java:135)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: oracle.sql.STRUCT
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 33 more
|#]

>
Our live servers are working fine. Our development server now is spewing out a java.lang.NoClassDefFoundError: oracle/sql/STRUCT error whenever it encounters a servlet or page which uses this class.
ojdbc14.jar and sdopai.jar were included within the WAR file, and I have tried with them excluded from the WAR file to no avail. We have tried reverting the version of ojdbc.jar on the server to the earlier version, this has made no different.
>
If your code can't find the class then you have the classic NoClassDefFoundError problem you get when any other referenced class can't be located.
The oracle/sql/STRUCT class is in the ojdbc14.jar, ojdbc5.jar and ojdbc6.jar so if it can't be found then that class is missing from the jar you are using (which you can tell by examining the jar contents) or the jar is missing from the classpath being used.
As already mentioned you need the Oracle 11 JDBC files to support Java 1.6
Here is the official Oracle JDBC page that shows the Oracle DB versions supported for each of the JDBC drivers available and also describes the JDBC jars and what JDK versions they support.
http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-faq-090281.html#02_01
>
Which JDBC drivers support which versions of Javasoft's JDK?
pre-8i OCI and THIN Drivers - JDK 1.0.x and JDK 1.1.x
8.1.5 OCI and THIN Drivers - JDK 1.0.x and JDK 1.1.x
8.1.6SDK THIN Driver - JDK 1.1.x and JDK 1.2.x (aka Java2)
8.1.6SDK OCI Driver - Only JDK 1.1.x
8.1.6 OCI and THIN Driver - JDK 1.1.x and JDK 1.2.x
8.1.7 OCI and THIN Driver - JDK 1.1.x and JDK 1.2.x
9.0.1 OCI and THIN Driver - JDK 1.1.x, JDK 1.2.x and JDK 1.3.x
9.2.0 OCI and THIN Driver - JDK 1.1.x, JDK 1.2.x, JDK 1.3.x, and JDK 1.4.x
10.1.0 OCI and THIN Driver - JDK 1.2.x, JDK 1.3.x, and JDK 1.4.x
10.2.0 OCI and THIN Driver - JDK 1.2.x, JDK 1.3.x, JDK 1.4.x, and JDK 5.0.x
11.1.0 OCI and THIN Driver - JDK 1.5.x and JDK 1.6.x
11.2.0 OCI and THIN Driver - JDK 1.5.x and JDK 1.6.x
Please note that JDK 1.4 is not supported by the 11 drivers.

Oracle SQL Developer problem

Hi,
I just got a new computer with Windows 7 Professional (32bit) and i tried to copy my Oracle SQL Developer from an old one (v. 2.1.1.64.45) and I just couldn't find Connection menu. I tried different solutions that I find on the internet and nothing worked (also tried installing new version 3.0 EA2) and still nothing). Could you please help me because I need this app badly?
thanks in advance

Yeah, I get this:
Exception initializing 'oracle.dbtools.raptor.RaptorDBAddin' in extension 'Oracl
e SQL Developer': java.lang.ExceptionInInitializerError
at oracle.dbtools.raptor.RaptorDBAddin.initialize(RaptorDBAddin.java:126
at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin(AddinManage
rImpl.java:407)
at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins(AddinManag
erImpl.java:214)
at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins(Ad
dinManagerImpl.java:128)
at oracle.ide.IdeCore.initProductAndUserAddins(IdeCore.java:1949)
at oracle.ide.IdeCore.startupImpl(IdeCore.java:1573)
at oracle.ide.Ide.startup(Ide.java:703)
at oracle.ideimpl.DefaultIdeStarter.startIde(DefaultIdeStarter.java:35)
at oracle.ideimpl.Main.start(Main.java:184)
at oracle.ideimpl.Main.main(Main.java:146)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.ide.boot.PCLMain.callMain(PCLMain.java:62)
at oracle.ide.boot.PCLMain.main(PCLMain.java:54)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.classloader.util.MainClass.invoke(MainClass.java:128)
at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:
189)
at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:89)
at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:65)
at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:54)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.ide.boot.Launcher.invokeMain(Launcher.java:713)
at oracle.ide.boot.Launcher.launchImpl(Launcher.java:115)
at oracle.ide.boot.Launcher.launch(Launcher.java:68)
at oracle.ide.boot.Launcher.main(Launcher.java:57)
Caused by: java.lang.NullPointerException
at oracle.i18n.text.OraTerritory.getInstance(OraTerritory.java:101)
at oracle.dbtools.raptor.config.DBConfig.<clinit>(DBConfig.java:325)
... 33 more
Exception initializing 'oracle.dbtools.raptor.standalone.RaptorStandaloneAddin'
in extension 'Oracle SQL Developer Extras': java.lang.NoClassDefFoundError: Coul
d not initialize class oracle.dbtools.raptor.config.DBConfig
at oracle.dbtools.raptor.utils.URLChooserShortcuts.<clinit>(URLChooserSh
ortcuts.java:35)
at oracle.dbtools.raptor.standalone.RaptorStandaloneAddin.initialize(Rap
torStandaloneAddin.java:178)
at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin(AddinManage
rImpl.java:407)
at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins(AddinManag
erImpl.java:214)
at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins(Ad
dinManagerImpl.java:128)
at oracle.ide.IdeCore.initProductAndUserAddins(IdeCore.java:1949)
at oracle.ide.IdeCore.startupImpl(IdeCore.java:1573)
at oracle.ide.Ide.startup(Ide.java:703)
at oracle.ideimpl.DefaultIdeStarter.startIde(DefaultIdeStarter.java:35)
at oracle.ideimpl.Main.start(Main.java:184)
at oracle.ideimpl.Main.main(Main.java:146)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.ide.boot.PCLMain.callMain(PCLMain.java:62)
at oracle.ide.boot.PCLMain.main(PCLMain.java:54)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.classloader.util.MainClass.invoke(MainClass.java:128)
at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:
189)
at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:89)
at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:65)
at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:54)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.ide.boot.Launcher.invokeMain(Launcher.java:713)
at oracle.ide.boot.Launcher.launchImpl(Launcher.java:115)
at oracle.ide.boot.Launcher.launch(Launcher.java:68)
at oracle.ide.boot.Launcher.main(Launcher.java:57)
Exception in thread "EditorLoader" java.lang.NoClassDefFoundError: Could not ini
tialize class oracle.dbtools.raptor.config.DBConfig
at oracle.dbtools.raptor.oviewer.base.ViewerAddin.loadXMLEditors(ViewerA
ddin.java:221)
at oracle.dbtools.raptor.oviewer.base.ViewerAddin$1$1.run(ViewerAddin.ja
va:130)
at java.lang.Thread.run(Thread.java:619)
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: Could not
initialize class oracle.dbtools.raptor.config.DBConfig
at oracle.dbtools.raptor.oviewer.base.NavSelectionListener.viewSelection
Changed(NavSelectionListener.java:176)
at oracle.ide.view.View.fireViewSelectionChangedImpl(View.java:495)
at oracle.ide.view.ViewDecorator.fireViewSelectionChangedImpl(ViewDecora
tor.java:59)
at oracle.ide.view.View.fireViewSelectionChanged(View.java:485)
at oracle.ide.view.View.updateSelectionImpl0(View.java:444)
at oracle.ide.view.View.updateSelectionImpl(View.java:429)
at oracle.ide.view.View.updateSelection(View.java:306)
at oracle.ideri.navigator.DefaultNavigatorWindow$4.viewSelectionChanged(
DefaultNavigatorWindow.java:1108)
at oracle.ide.view.View.fireViewSelectionChangedImpl(View.java:495)
at oracle.ide.view.View.fireViewSelectionChanged(View.java:485)
at oracle.ide.view.View$2.actionPerformed(View.java:349)
at javax.swing.Timer.fireActionPerformed(Timer.java:271)
at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
ad.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Error while calling data service: ClassCastException: oracle.sql.TIMESTAMP

I created a data service out of an Oracle datastore (table) which has a number of TIMESTAMP columns and deployed it in Axis2
When testing the Web Service in Designer, I get this error and can't find any solution:
com.sunopsis.wsinvocation.SnpsWSInvocationException: oracle.sql.TIMESTAMP cannot be cast to java.util.Date
     at com.sunopsis.wsinvocation.client.a.a.d.requestReply(d.java)
     at com.sunopsis.graphical.wsclient.f.b(f.java)
     at com.sunopsis.graphical.tools.utils.swingworker.v.call(v.java)
     at edu.emory.mathcs.backport.java.util.concurrent.FutureTask.run(FutureTask.java:176)
     at com.sunopsis.graphical.tools.utils.swingworker.l.run(l.java)
     at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
     at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
     at java.lang.Thread.run(Thread.java:534)
Caused by: oracle.sql.TIMESTAMP cannot be cast to java.util.Date
     at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
     at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
     at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
     at org.apache.xerces.parsers.SAXParser.endElement(SAXParser.java:1403)
     at org.apache.xerces.validators.common.XMLValidator.callEndElement(XMLValidator.java:1550)
     at org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1149)
     at org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
     at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
     at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)
     at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
     at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
     at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
     at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
     at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
     at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
     at org.apache.axis.client.Call.invoke(Call.java:2767)
     at org.apache.axis.client.Call.invoke(Call.java:1792)
     at com.sunopsis.wsinvocation.client.a.a.d.a(d.java)
     ... 8 more
Caused by:
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server
faultSubcode:
faultString: oracle.sql.TIMESTAMP cannot be cast to java.util.Date
faultActor:
faultNode:
faultDetail:
     {}stackTrace:java.lang.ClassCastException: oracle.sql.TIMESTAMP cannot be cast to java.util.Date
     at com.sunopsis.data.transform.impl.DataTransformerUtilDate2SqlTimestamp.from(DataTransformerUtilDate2SqlTimestamp.java)
     at com.sunopsis.data.transform.impl.generic.DataTransformerReverser.to(DataTransformerReverser.java)
     at com.sunopsis.data.transform.impl.generic.DataTransformerIfNullThenExceptionWrapper.to(DataTransformerIfNullThenExceptionWrapper.java)
     at com.sunopsis.data.transform.impl.generic.DataTransformerCombiner.to(DataTransformerCombiner.java)
     at oracle.odi.dataservices.fwk.axis2.OMSerializer.objectToXsd(OMSerializer.java)
     at oracle.odi.dataservices.fwk.axis2.OMSerializer.serializeManagedEntity(OMSerializer.java)
     at oracle.odi.dataservices.fwk.axis2.OMSerializer.serializeManagedEntityList(OMSerializer.java)
     at oracle.odi.dataservices.fwk.axis2.OMSerializer.serializeOMElement(OMSerializer.java)
     at oracle.odi.dataservices.fwk.axis2.DataServicesMessageReceiver.invokeBusinessLogic(DataServicesMessageReceiver.java)
     at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.receive(AbstractInOutSyncMessageReceiver.java:39)
     at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:144)
     at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:279)
     at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:116)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
     at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
     at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
     at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555)
     at java.lang.Thread.run(Thread.java:619)
oracle.sql.TIMESTAMP cannot be cast to java.util.Date
     at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
     at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
     at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
     at org.apache.xerces.parsers.SAXParser.endElement(SAXParser.java:1403)
     at org.apache.xerces.validators.common.XMLValidator.callEndElement(XMLValidator.java:1550)
     at org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1149)
     at org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
     at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
     at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)
     at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
     at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
     at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
     at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
     at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
     at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
     at org.apache.axis.client.Call.invoke(Call.java:2767)
     at org.apache.axis.client.Call.invoke(Call.java:1792)
     at com.sunopsis.wsinvocation.client.a.a.d.a(d.java)
     at com.sunopsis.wsinvocation.client.a.a.d.requestReply(d.java)
     at com.sunopsis.graphical.wsclient.f.b(f.java)
     at com.sunopsis.graphical.tools.utils.swingworker.v.call(v.java)
     at edu.emory.mathcs.backport.java.util.concurrent.FutureTask.run(FutureTask.java:176)
     at com.sunopsis.graphical.tools.utils.swingworker.l.run(l.java)
     at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
     at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
     at java.lang.Thread.run(Thread.java:534)

What database are you doing this with?
B

Oracle SQL Developer 2.1 EA1 and 1.5.5 not working on MacOS X Snow Leopard

Currently, the Oracle SQL Developer 2.1 EA1 and 1.5.5 are not working on MacOS X Snow Leopard. Is there a plan to support the actual version of OS X?
When I try to start the MacOS X-Download I always get the following errors using MacOS X 10.6.1:
./sqldeveloper.sh oracle.classloader.util.AnnotatedNoClassDefFoundError:
     Missing class: oracle.ide.Version
     Dependent class: oracle.ide.IdeCore
     Loader: main:11.0
     Code-Source: /Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/extensions/oracle.ide.jar
     Configuration: system property PCLMain.createExtensionManagerLoader()
The missing class is not available from any code-source or loader in the system.
     at oracle.classloader.PolicyClassLoader.handleClassNotFound (PolicyClassLoader.java:2176) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.classloader.PolicyClassLoader.internalLoadClass (PolicyClassLoader.java:1729) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.java:1685) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.java:1670) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@2039559412]
     at java.lang.ClassLoader.loadClassInternal (ClassLoader.java:399) [jre bootstrap, by jre.bootstrap:1.6.0_15]
     at oracle.ide.IdeCore.$init$ (IdeCore.java:169) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/extensions/oracle.ide.jar (from system property PCLMain.createExtensionManagerLoader()), by main:11.0]
     at oracle.ide.IdeCore.<init> (IdeCore.java:176) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/extensions/oracle.ide.jar (from system property PCLMain.createExtensionManagerLoader()), by main:11.0]
     at oracle.ideimpl.DefaultIdeCore.<init> (DefaultIdeCore.java:64) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoader()), by main:11.0]
     at oracle.ideimpl.DefaultIdeCore.<init> (DefaultIdeCore.java:69) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoader()), by main:11.0]
     at oracle.ideimpl.Main.start (Main.java:109) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoader()), by main:11.0]
     at oracle.ideimpl.Main.main (Main.java:72) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoader()), by main:11.0]
     at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown, by unknown]
     at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) [unknown, by unknown]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) [unknown, by unknown]
     at java.lang.reflect.Method.invoke (Method.java:597) [unknown, by unknown]
     at oracle.ide.boot.PCLMain.callMain (PCLMain.java:66) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.PCLMain.main (PCLMain.java:58) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown, by unknown]
     at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) [unknown, by unknown]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) [unknown, by unknown]
     at java.lang.reflect.Method.invoke (Method.java:597) [unknown, by unknown]
     at oracle.classloader.util.MainClass.invoke (MainClass.java:128) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/j2ee/home/lib/pcl.jar (from system property java.class.path), by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain (IdeLauncher.java:190) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.IdeLauncher.launchImpl (IdeLauncher.java:90) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.IdeLauncher.launch (IdeLauncher.java:66) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.IdeLauncher.main (IdeLauncher.java:55) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown, by unknown]
     at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) [unknown, by unknown]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) [unknown, by unknown]
     at java.lang.reflect.Method.invoke (Method.java:597) [unknown, by unknown]
     at oracle.ide.boot.Launcher.invokeMain (Launcher.java:729) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.Launcher.launchImpl (Launcher.java:115) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.Launcher.launch (Launcher.java:68) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]
     at oracle.ide.boot.Launcher.main (Launcher.java:57) [Users/dus/Downloads/sqldeveloper-1.5.5.59.69-macosx/SQLDeveloper.app/Contents/Resources/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@2039559412]

You have started this annoying discussion.
I don't have any problems with my OS instead of you.
I have already told you what to do, if you have no idea how to do that just go and buy yourself another support subscription from your mac support.
The missing class is not available from any code-source or loader in the system. check that.
what version of JAVA do you have in your fancy OS? most of the time upgrade java to the latest version will fix the issues.
Update java from sun website not from another mac tore.

Oracle SQL Developer 1.1.1.25.14, I rror ORA-01722 Invalid Number

I have installed the new version of Oracle SQL Developer 1.1.1.25.14, I use Oracle 9.2. When I browse in the tree of the stored procedures and compile I obtain Error ORA-01722 Invalid Number. The previous version does not give this error. I have tried to change the decimal separator to comma ',' and point '.' but this error always appears.

create or replace
PROCEDURE getAge (
dtmDataStart_in IN DATE,
dtmDataEnd_in IN DATE,
intYears_out OUT NUMBER,
intMonths_out OUT NUMBER,
intDays_out OUT NUMBER) AS
-- Calcola il numero di anni, mesi, giorni intercorsi
-- dalla data iniziale alla data finale.
-- Se la data iniziale è > della data finale, le due date
-- vengono scambiate e le variabili di output vengono ritornate
-- con segno negativo.
--==================================================
-- Data Ultima Modifica: 31/07/98
-- Aggiunta procedura per il calcolo della differenza tra
-- due date dello stesso anno.
--==================================================
-- DICHIARAZIONE VARIABILI INIZIO --------------------------------------------------------
intYMDStart NUMBER(10);
intYMDEnd NUMBER(10);
intYMD NUMBER(10);
intDiffAnni NUMBER(5);
intDiffMesi NUMBER(5);
intDiffGiorni NUMBER(5);
intMeseStart NUMBER(5);
intAnnoStart NUMBER(5);
intTotGiorniMeseStart NUMBER(5);
ysnNegativo NUMBER(5);
-- DICHIARAZIONE VARIABILI FINE ----------------------------------------------------------
BEGIN
intYMDStart := TO_NUMBER( TO_CHAR(dtmDataStart_in,'YYYYMMDD'));
intYMDEnd := TO_NUMBER( TO_CHAR(dtmDataEnd_in,'YYYYMMDD'));
ysnNegativo := 0;
IF intYMDStart = intYMDEnd THEN
intYears_out := 0;
intMonths_out := 0;
intDays_out := 0 ;
ELSE
IF intYMDStart > intYMDEnd THEN
intYMD := intYMDStart;
intYMDStart := intYMDEnd;
intYMDEnd := intYMD;
ysnNegativo := -1;
END IF;
intDiffAnni := TO_NUMBER(TO_CHAR(dtmDataEnd_in,'YYYY')) - TO_NUMBER(TO_CHAR(dtmDataStart_in ,'YYYY'));
intDiffMesi := TO_NUMBER(TO_CHAR(dtmDataEnd_in,'MM')) - TO_NUMBER(TO_CHAR(dtmDataStart_in ,'MM'));
intDiffGiorni := TO_NUMBER(TO_CHAR(dtmDataEnd_in,'DD')) - TO_NUMBER(TO_CHAR(dtmDataStart_in ,'DD'));
-- I valori cosi' calcolati di intDiffAnni, intDiffMesi e intDiffGiorni vanno bene
-- ad eccezione dei seguenti casi:
-- Sistemo intDiffAnni
IF (intDiffMesi > 0 OR (intDiffMesi = 0 AND intDiffGiorni >= 0)) THEN
-- intDiffAnni e' OK
intDiffAnni := intDiffAnni;
ELSE
-- non e' ancora arrivato il giorno del compleanno
intDiffAnni := intDiffAnni-1;
END IF;
-- Sistemo intDiffMesi
IF (intDiffMesi > 0 AND intDiffGiorni < 0) THEN
intDiffMesi := intDiffMesi-1;
ELSIF (intDiffMesi < 0 ) THEN
     if(intDiffGiorni<0) THEN
     intDiffMesi := intDiffMesi+11;
else
     intDiffMesi := intDiffMesi+12;
END IF;
ELSIF (intDiffMesi=0 AND intDiffGiorni<0) THEN
     intDiffMesi:=11;
END IF;
-- Sistemo intDiffGiorni
-- Calcolo i giorni come (TotGiorniMeseIniziale - GiornoIniziale) + (GiornoFinale - 0)
-- che e' uguale a fare TotGiorniMeseIniziale + (GiornoFinale-GiornoIniziale)
IF intDiffGiorni < 0 THEN
intMeseStart := TO_NUMBER(TO_CHAR(dtmDataStart_in ,'MM'));
IF intMeseStart IN (1,3,5,7,8,10,12) THEN
intTotGiorniMeseStart := 31;
ELSIF intMeseStart = 2 THEN
-- Da enciclopedia: sono bisestili gli anni multipli di 4
-- esclusi i secoli che non sono multipli di 400 (Parte commentata).
intAnnoStart := TO_NUMBER(TO_CHAR(dtmDataStart_in ,'YYYY'));
if (intAnnoStart MOD 4) = 0
-- AND NOT ((intAnnoStart MOD 100) = 0 AND (intAnnoStart MOD 400) <> 0)
Then
intTotGiorniMeseStart := 29;
else
intTotGiorniMeseStart := 28;
end if;
ELSIF intMeseStart IN (4,6,9,11) THEN
intTotGiorniMeseStart := 30;
END IF;
intDiffGiorni := intDiffGiorni + intTotGiorniMeseStart;
END IF;
IF ysnNegativo = 0 THEN
intDays_out := intDiffGiorni;
intMonths_out := intDiffMesi;
intYears_out := intDiffAnni;
ELSE
intDays_out := intDiffGiorni * (-1);
intMonths_out := intDiffMesi * (-1);
intYears_out := intDiffAnni * (-1);
END IF;
END IF;
EXCEPTION
WHEN OTHERS THEN
RAISE;
END getAge;
The output result of compilation is "GETAGE Compiled", I think the 01722 error is not caused from an sql syntax error, but probably caused from an invalid or unsupported or 'strange' configuration on nationalization... the fact surprises me that the previous version did not give problems
THANKS SO MUTCH
*/

Oracle SQL Developer 1.1 Patch 2 (1.1.2.25.79) Browsing

Dear All
I download Oracle SQL Developer 1.1 Patch 2 (1.1.2.25.79) ,and install it but
it refuse to browse any schema , knowing that it accept the connection and keep the massage loading appearing all the time
Thanks
Suliman

More detailed output below (Ctrl+break and running as sqldeveloper -J-Dide.extension.log.to.console=true)
I've also only got Oracle.* files in my two extensions directories
C:\Program Files\SQLDeveloper\ide\extensions
C:\Program Files\SQLDeveloper\jdev\extensions
C:\Program Files\SQLDeveloper\sqldeveloper\bin>sqldeveloper.exe
WARNING: Unknown directive: SetSkipJ2SDKCheck
Using oracle.home=C:\Program Files\SQLDeveloper
Using ide.user.dir=null
Full thread dump Java HotSpot(TM) Client VM (1.5.0_06-b05 mixed mode):
"TimerQueue" daemon prio=6 tid=0x04635270 nid=0xff4 in Object.wait() [0x04d3f000
..0x04d3fd68]
at java.lang.Object.wait(Native Method)
- waiting on <0x12879928> (a javax.swing.TimerQueue)
at javax.swing.TimerQueue.run(TimerQueue.java:233)
- locked <0x12879928> (a javax.swing.TimerQueue)
at java.lang.Thread.run(Thread.java:595)
"AWT-EventQueue-0" prio=6 tid=0x04610e50 nid=0xf50 in Object.wait() [0x04c3f000.
.0x04c3f9e8]
at java.lang.Object.wait(Native Method)
- waiting on <0x12832040> (a java.awt.EventQueue)
at java.lang.Object.wait(Object.java:474)
at java.awt.EventQueue.getNextEvent(EventQueue.java:345)
- locked <0x12832040> (a java.awt.EventQueue)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:189)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
"Image Fetcher 0" daemon prio=8 tid=0x04611160 nid=0x234 in Object.wait() [0x04b
3f000..0x04b3fa68]
at java.lang.Object.wait(Native Method)
- waiting on <0x12860f78> (a java.util.Vector)
at sun.awt.image.ImageFetcher.nextImage(ImageFetcher.java:114)
- locked <0x12860f78> (a java.util.Vector)
at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:167)
at sun.awt.image.ImageFetcher.run(ImageFetcher.java:136)
"AWT-Windows" daemon prio=6 tid=0x045fbd28 nid=0xb7c runnable [0x04a2f000..0x04a
2fae8]
at sun.awt.windows.WToolkit.eventLoop(Native Method)
at sun.awt.windows.WToolkit.run(WToolkit.java:269)
at java.lang.Thread.run(Thread.java:595)
"AWT-Shutdown" prio=6 tid=0x045fb8b0 nid=0xe4c in Object.wait() [0x0492f000..0x0
492fb68]
at java.lang.Object.wait(Native Method)
- waiting on <0x128345c8> (a java.lang.Object)
at java.lang.Object.wait(Object.java:474)
at sun.awt.AWTAutoShutdown.run(AWTAutoShutdown.java:259)
- locked <0x128345c8> (a java.lang.Object)
at java.lang.Thread.run(Thread.java:595)
"Java2D Disposer" daemon prio=6 tid=0x044de4a8 nid=0x688 in Object.wait() [0x048
2f000..0x0482fbe8]
at java.lang.Object.wait(Native Method)
- waiting on <0x12834650> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
- locked <0x12834650> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
at sun.java2d.Disposer.run(Disposer.java:107)
at java.lang.Thread.run(Thread.java:595)
"Low Memory Detector" daemon prio=6 tid=0x01015278 nid=0x90c runnable [0x0000000
0..0x00000000]
"CompilerThread0" daemon prio=6 tid=0x01012d38 nid=0xed0 waiting on condition [0
x00000000..0x03e6fa4c]
"Signal Dispatcher" daemon prio=6 tid=0x010120b8 nid=0x7dc waiting on condition
[0x00000000..0x00000000]
"Finalizer" daemon prio=8 tid=0x01008fd0 nid=0xd28 in Object.wait() [0x03c6f000.
.0x03c6fae8]
at java.lang.Object.wait(Native Method)
- waiting on <0x1279ffa0> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
- locked <0x1279ffa0> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
"Reference Handler" daemon prio=6 tid=0x01008518 nid=0x624 in Object.wait() [0x0
3b6f000..0x03b6fa68]
at java.lang.Object.wait(Native Method)
- waiting on <0x127a0020> (a java.lang.ref.Reference$Lock)
at java.lang.Object.wait(Object.java:474)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
- locked <0x127a0020> (a java.lang.ref.Reference$Lock)
"main" prio=6 tid=0x00849390 nid=0xf4c runnable [0x0012d000..0x0012fb78]
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.<init>(Throwable.java:218)
at java.lang.Exception.<init>(Exception.java:59)
at java.lang.ClassNotFoundException.<init>(ClassNotFoundException.java:6
5)
at java.lang.ClassLoader.findBootstrapClass(Native Method)
at java.lang.ClassLoader.findBootstrapClass0(ClassLoader.java:891)
at java.lang.ClassLoader.loadClass(ClassLoader.java:301)
- locked <0x127a2fd0> (a sun.misc.Launcher$ExtClassLoader)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
- locked <0x127a0058> (a sun.misc.Launcher$AppClassLoader)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
- locked <0x127a0058> (a sun.misc.Launcher$AppClassLoader)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at oracle.classloader.SearchPolicy$FindMain.getClass(SearchPolicy.java:3
07)
at oracle.classloader.SearchSequence.getClass(SearchSequence.java:119)
at oracle.classloader.SearchPolicy.loadClass(SearchPolicy.java:648)
- locked <0x127af080> (a oracle.classloader.PolicyClassLoader)
at oracle.classloader.PolicyClassLoader.askParentForClass(PolicyClassLoa
der.java:1308)
at oracle.classloader.SearchPolicy$AskParent.getClass(SearchPolicy.java:
68)
at oracle.classloader.SearchSequence.getClass(SearchSequence.java:119)
at oracle.classloader.PolicyClassLoader.internalLoadClass(PolicyClassLoa
der.java:1693)
- locked <0x127adf48> (a oracle.classloader.PolicyClassLoader)
at oracle.classloader.PolicyClassLoader.loadClass(PolicyClassLoader.java
:1654)
at oracle.classloader.PolicyClassLoader.loadClass(PolicyClassLoader.java
:1639)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
- locked <0x127adf48> (a oracle.classloader.PolicyClassLoader)
at javax.ide.model.spi.DocumentHook.$init$(DocumentHook.java:66)
at javax.ide.model.spi.DocumentHook.<init>(DocumentHook.java:27)
at javax.ide.extension.spi.DefaultHookVisitorFactory.createDocumentHook(
DefaultHookVisitorFactory.java:157)
at javax.ide.extension.spi.DefaultHookVisitorFactory.registerStandardVis
itors(DefaultHookVisitorFactory.java:81)
at javax.ide.extension.spi.DefaultHookVisitorFactory.<init>(DefaultHookV
isitorFactory.java:53)
at oracle.ideimpl.extension.ExtensionManagerImpl$1.<init>(ExtensionManag
erImpl.java:153)
at oracle.ideimpl.extension.ExtensionManagerImpl.createHookVisitorFactor
y(ExtensionManagerImpl.java:152)
at javax.ide.extension.ExtensionRegistry.loadExtensions(ExtensionRegistr
y.java:259)
at oracle.ideimpl.extension.ExtensionManagerImpl.loadExtensions(Extensio
nManagerImpl.java:376)
at javax.ide.extension.ExtensionRegistry.loadExtensions(ExtensionRegistr
y.java:171)
at javax.ide.extension.ExtensionRegistry.initialize(ExtensionRegistry.ja
va:382)
at oracle.ideimpl.extension.ExtensionManagerImpl.initialize(ExtensionMan
agerImpl.java:875)
at javax.ide.Service.getService(Service.java:68)
at javax.ide.extension.ExtensionRegistry.getExtensionRegistry(ExtensionR
egistry.java:401)
at oracle.ide.ExtensionRegistry.getOracleRegistry(ExtensionRegistry.java
:140)
at oracle.ide.IdeCore.startupImpl(IdeCore.java:1122)
at oracle.ide.Ide.startup(Ide.java:642)
at oracle.ideimpl.DefaultIdeStarter.startIde(DefaultIdeStarter.java:35)
at oracle.ideimpl.Main.start(Main.java:90)
at oracle.ideimpl.Main.main(Main.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at oracle.ide.boot.PCLMain.callMain(PCLMain.java:45)
at oracle.ide.boot.PCLMain.main(PCLMain.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at oracle.classloader.util.MainClass.invoke(MainClass.java:89)
at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:
218)
at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:90)
at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:66)
at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:55)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at oracle.ide.boot.Launcher.invokeMain(Launcher.java:508)
at oracle.ide.boot.Launcher.launchImpl(Launcher.java:106)
at oracle.ide.boot.Launcher.launch(Launcher.java:60)
at oracle.ide.boot.Launcher.main(Launcher.java:49)
"VM Thread" prio=6 tid=0x010058e0 nid=0xde8 runnable
"VM Periodic Task Thread" prio=6 tid=0x01011ff8 nid=0xeb8 waiting on condition
Product extension oracle.sqldeveloper could not be loaded. The product cannot st
art.
Disabled extensions:
oracle.ide.xmlef: Missing dependencies: oracle.ide.daf, oracle.ide.palette2
C:\Program Files\SQLDeveloper\sqldeveloper\bin>sqldeveloper -J-Dide.extension.lo
g.to.console=true
WARNING: Unknown directive: SetSkipJ2SDKCheck
Using oracle.home=C:\Program Files\SQLDeveloper
Using ide.user.dir=null
Product extension oracle.sqldeveloper could not be loaded. The product cannot st
art.
Disabled extensions:
oracle.ide.xmlef: Missing dependencies: oracle.ide.daf, oracle.ide.palette2
C:\Program Files\SQLDeveloper\sqldeveloper\bin>

Insert Blob column in the client errors ClassCastException: oracle.sql.BLOB

Hi,
When I try to insert and commit a Blob column(picture) I am getting the following exception.
Is there any jar I need to add or any other setup I need to do to accept the BLOB column in the olite client database.
500 Internal Server Error
javax.faces.FacesException: #{backing_XXPBWorkOrderResultsCreatePGBean.saveButton_action}: javax.faces.el.EvaluationException: java.lang.ClassCastException: oracle.sql.BLOB
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:78)
     at oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:211)
Caused by: java.lang.ClassCastException: oracle.sql.BLOB
     at oracle.lite.poljdbc.LiteEmbPreparedStmt.setVal(Unknown Source)
     at oracle.lite.poljdbc.POLJDBCPreparedStatement.setObject(Unknown Source)
     at oracle.lite.poljdbc.POLJDBCPreparedStatement.setObject(Unknown Source)
     at oracle.lite.poljdbc.POLJDBCPreparedStatement.setObject(Unknown Source)
     at oracle.lite.web.JupPreparedStatement.setObject(Unknown Source)
     at oracle.jbo.server.BaseSQLBuilderImpl.bindUpdateStatement(BaseSQLBuilderImpl.java:1765)
     at oracle.jbo.server.EntityImpl.bindDMLStatement(EntityImpl.java:7345)
With regareds,
Kali.
OSSI.

Here are examples if inserting into a Blob from text, file, and retrieving a blob.
Insert into a Blob (Text)
import java.io.FileNotFoundException;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class InsertBlob {
    public static void main(String[] args) throws FileNotFoundException {
        Connection con = null;
        PreparedStatement stmt = null;
        ResultSet rs = null;
        String letterText = "some letter text";
        long id = 100;
        try {
            DriverManager.registerDriver((Driver)(Class.forName("oracle.lite.poljdbc.POLJDBCDriver").newInstance()));
            try {
                con = DriverManager.getConnection("jdbc:polite:polite", "system", "manager");
            } catch (SQLException sqle) {
                sqle.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        try {
            stmt = con.prepareStatement("INSERT INTO BLOB_TABLE (BLOB_ID, BLOB_DATA) VALUES (?, EMPTY_BLOB())");
            stmt.setLong(1, id);
            stmt.executeUpdate();
            stmt = con.prepareStatement("SELECT BLOB_DATA FROM BLOB_TABLE WHERE BLOB_ID = ? FOR UPDATE");
            stmt.setLong(1, id);
            rs = stmt.executeQuery();
            if (rs.next()) {
                try {
                    oracle.lite.poljdbc.BLOB oliteBlob = null;
                    oliteBlob = ((oracle.lite.poljdbc.OracleResultSet) rs).getBLOB(1);
                    byte[] byteLetterText = letterText.getBytes();
                    oliteBlob.putBytes(1, byteLetterText);
                    con.commit();
                } catch (ClassCastException e) {
                    e.printStackTrace();
                } finally {
                    rs = null;
                    stmt = null;
                    con.rollback();
                    con = null;
        } catch (SQLException e) {
            e.printStackTrace();
}Insert Into a Blob (File)
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class InsertBlobFile {
    public static void main(String[] args) throws FileNotFoundException {
        Connection con = null;
        PreparedStatement stmt = null;
        long id = 200;
        try {
            DriverManager.registerDriver((Driver)(Class.forName("oracle.lite.poljdbc.POLJDBCDriver").newInstance()));
            try {
                con = DriverManager.getConnection("jdbc:polite:polite", "system", "manager");
            } catch (SQLException sqle) {
                sqle.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        try {
            stmt = con.prepareStatement("INSERT INTO BLOB_TABLE (BLOB_ID, BLOB_DATA) VALUES (?, ?)");
            stmt.setLong(1, id);
            File fBlob = new File ( "C:\\BLOB_TEST_FILE.TXT" );
            FileInputStream is = new FileInputStream ( fBlob );
            stmt.setBinaryStream (2, is, (int) fBlob.length() );
            stmt.executeUpdate();
            con.commit();
        } catch (SQLException e) {
            e.printStackTrace();
}Retrieve from Blob (Write to file)
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.Blob;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class RetrieveBlob {
    final static int bBufLen = 32 * 1024;
    final static String outFile = "C:\\BLOB_OUTPUT_FILE.TXT";
    public static void main(String[] args) throws IOException {
        Connection con = null;
        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            DriverManager.registerDriver((Driver)(Class.forName("oracle.lite.poljdbc.POLJDBCDriver").newInstance()));
            try {
                con = DriverManager.getConnection("jdbc:polite:polite", "system", "manager");
            } catch (SQLException sqle) {
                sqle.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        try {
            stmt = con.prepareStatement("SELECT * FROM BLOB_TABLE");
            rs = stmt.executeQuery();
            while(rs.next()) {
                int id = rs.getInt(1);
                Blob value = rs.getBlob(2);
                System.out.println(id + " | " + value);
                writeBlobToFile(value);
        } catch (SQLException e) {
            e.printStackTrace();
    public static long readFromBlob(Blob blob, OutputStream out)
      throws SQLException, IOException {
        InputStream in = blob.getBinaryStream();
        int length = -1;
        long read = 0;
        byte[] buf = new byte[bBufLen];
        while ((length = in.read(buf)) > 0) {
            out.write(buf, 0, length);
            read += length;
        in.close();
        return read;
    public static long writeBlobToFile(Blob blob)
      throws IOException, SQLException {
        long wrote = 0;
        OutputStream fwriter = new FileOutputStream(outFile);
        wrote = readFromBlob(blob, fwriter);
        fwriter.close();
        return wrote;
}

Issue with java.lang.ClassCastException: oracle.sql.StructDescriptor

Hi ,
I'm creating a dbadapter for a custom API written in APPS schema -
TYPE MISIPM_LOB IS RECORD (
FILE_ID IPM_LOBS.FILE_ID%TYPE,
FILE_NAME IPM_LOBS.LOB_NAME%TYPE );
TYPE MISIPM_LOB_LIST IS TABLE OF MISIPM_LOB;
PROCEDURE GET_FILE_ID_DETAILS(
P_SOURCE_SYSTEM IN VARCHAR2,
p_entity_value IN VARCHAR2,
p_entity_code IN VARCHAR2,
P_ORG_ID IN NUMBER,
P_MISIPM_FILES_LIST OUT MISIPM_LOB_LIST,
P_ERRCODE OUT VARCHAR2,
P_ERRMESSAGE OUT VARCHAR2);
From JDeveloper, there is a wrapper package is getting created and the compilation/deployment of this composite is also without any error.
But when I run the composite, I'm surprisingly getting the below error -
Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'GetAttachmentMetaData' failed due to: Interaction processing error. Error while processing the execution of the APPS.BPEL_GETATTACHMENTMETADATA1.XX_DELIVER_BLOB$GET_FILE_ API interaction. An error occurred while processing the interaction for invoking the APPS.BPEL_GETATTACHMENTMETADATA1.XX_DELIVER_BLOB$GET_FILE_ API. Cause: java.lang.ClassCastException: oracle.sql.StructDescriptor Check to ensure that the XML containing parameter data matches the parameter definitions in the XSD. This exception is considered not retriable, likely due to a modelling mistake. ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
I recreated the adapter multiple times within the composite and also tried to create a separate composite and all the cases the error message received was same. There two more similar procedure call's in the composite and all rest of them are working fine.
I can call the wrapper from sql script separately.
Verified that the XSD generated and the wrapper package parameters are matching as well.
Did anyone face the same issue or any explanation/help is much appreciated.
Regards,
Debanjan

Hi Vijay,
I have checked the number of parameters as well.
<element name="InputParameters">
<complexType>
<sequence>
<element name="P_SOURCE_SYSTEM" type="string" db:index="1" db:type="VARCHAR2" minOccurs="0" nillable="true"/>
<element name="P_ENTITY_VALUE" type="string" db:index="2" db:type="VARCHAR2" minOccurs="0" nillable="true"/>
<element name="P_ENTITY_CODE" type="string" db:index="3" db:type="VARCHAR2" minOccurs="0" nillable="true"/>
<element name="P_ORG_ID" type="decimal" db:index="4" db:type="NUMBER" minOccurs="0" nillable="true"/>
</sequence>
</complexType>
</element>
<element name="OutputParameters">
<complexType>
<sequence>
<element name="P_MISIPM_FILES_LIST" type="db:APPS.XX_DELIVER_X35784324X1X5" db:index="5" db:type="Array" minOccurs="0" nillable="true"/>
<element name="P_ERRCODE" type="string" db:index="6" db:type="VARCHAR2" minOccurs="0" nillable="true"/>
<element name="P_ERRMESSAGE" type="string" db:index="7" db:type="VARCHAR2" minOccurs="0" nillable="true"/>
</sequence>
</complexType>
</element>
<complexType name="APPS.XX_DELIVER_X35784324X1X6">
<sequence>
<element name="FILE_ID" type="decimal" db:type="NUMBER" minOccurs="0" nillable="true"/>
<element name="FILE_NAME" db:type="VARCHAR2" minOccurs="0" nillable="true">
<simpleType>
<restriction base="string">
<maxLength value="2000"/>
</restriction>
</simpleType>
</element>
</sequence>
</complexType>
<complexType name="APPS.XX_DELIVER_X35784324X1X5">
<sequence>
<element name="P_MISIPM_FILES_LIST_ITEM" type="db:APPS.XX_DELIVER_X35784324X1X6" db:type="Struct" minOccurs="0" maxOccurs="unbounded" nillable="true"/>
</sequence>
</complexType>
Regards,
Debanjan

Oracle SQL template to create re-usable DDL/DML Scripts for Oracle database

Hi,
I have a requirement to put together a Oracle SQL template to create re-usable DDL/DML Scripts for Oracle databases.
Only the Oracle DBA will be running the scripts so permissions is not an issue.
The workflow for any DDL is as follows:-
1) New Table
a. Check if the table exists from the system/admin views.
b. If table exists then give message "Table Exists"
c. If table does not exist then execute DDL code
2) Add Column
a. Check if Column exists for a given table from system/admin views
b. If column exists in the specified table,
b1. backup table.
b2. alter table to make changes to the column
b3. verify data or execute dml script convert from backup to the new change.
c. If Column does not exist
c1. backup table
c2. alter table to add column
c3. execute dml to populate column with default value.
The DML scripts are for populating base tables with data required for business operations.
3) Add new row
a. check if row exists by comparing old values of each column with new values to be added for the new record.
b. If exists, give message row exists
c. If not exists, add new record.
4) Update existing record (We have createtime columns in these tables so changes can be tracked)
a. check if row exists using primary key.
b. If exists,
b1. deactivate the record using the "active" column of the table
b2. Add new record with the changes required.
c. If does not exist, add new record with the changes required.
Could you please help with some ideas which can get this done accurately?
I have tried several ways, but I am not able to put together something that fulfills all requirements.
Thank you,

First let me address your question. (This is the easy part.)
1. The existence of tables can be found in DBA_TABLES. Query it and and then use conditional logic and execute immediate to process the DDL.
2. The existence of table columns is found in DBA_TAB_COLUMNS. Query it and then conditionally execute your DDL. You can copy the "before picture" of the table using that same dba view, or even better, use DBMS_METADATA.
As for your DML scripts, they should be restartable, reversible, and re-run-able. They should "fail gracefully" on error, be written in such a way that they can run twice in a row without creating duplicate changes.
3. Adding appropriate constraints can prevent invalid duplicate rows. Also, you can usually add to the where clause so that the DML does only what it needs to do without even relying on the constraint (but the constraint is there as a safeguard). Look up the MERGE statement to learn how to do an UPSERT (update/insert), which will let you conditionally "deactivate" (update) or insert a record. Anything that you cannot do in SQL can be done with simple procedural code.
Now, to the heart of the matter...
You think I did not understand your requirements?
Please be respectful of people's comments. Many of us are professionals with decades of experience working with databases and Oracle technology. We volunteer our valuable time and knowledge here for free. It is extremely common for someone to post what they feel is an easy SQL or PL/SQL question without stating the real goal--the business objective. Experienced people will spot that the "wrong question" has been asked, and then cut to the chase.
We have some good questions for you. Not questions we need answers from, but questions you need to ask yourself and your team. You need to reexamine this post and deduce what those questions are. But I'll give you some hints: Why do you need to do what you are asking? And will this construct you are asking for even solve the root cause of your problems?
Then ponder the following quotations about asking the right question:
Good questions outrank easy answers.
— Paul Samuelson
The only interesting answers are those which destroy the questions.
— Susan Sontag
The scientific mind does not so much provide the right answers as ask the right questions.
— Claude Levi-Strauss
You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.
— Mahfouz Naguib
One hears only those questions for which one is able to find answers.
— Friedrich Nietzsche
Be patient towards all that is unresolved in your heart and try to love the questions themselves.
— Rainer Maria Rilke
What people think of as the moment of discovery is really the discovery of the question.
— Jonas Salk
Judge a man by his questions rather than his answers.
— Voltaire
The ability to ask the right question is more than half the battle of finding the answer.
— Thomas J. Watson

JSF: partial page rendering is causing memory leak leading to outofmemory

JDeveloper 10.1.3.2.0
JDK: 1.6.0_06
Operating System: Windows XP.
I test my application for memory leaks. For that purpose, I use jconsole to monitor java heap space. I have an edit page that has two dependent list components. One displays all countries and the other displays cities of the selected country.
I noticed java heap space keeps growing as I change country from country list.
I run garbage collection and memory usage does not go down. If I keep changing the province for 5 minutes, then I hit a java heap space outofmemory exception.
To narrow down the problem, I removed the second city component and the problem still exists.
To narrow it down further, I removed autosubmit attribute from the country component and then memory usage stopped increasing as I change country.
country/city partial page rendering is just an example. I am able to reproduce the same problem on every page where i use partial page rendering. My conclusion is PPR is causing memory leak or at least the autosubmit attribute.
This is really bad. Anyone out there experienced same issue. Any help/advice is highly appreciated !!
Thanks
<af:panelLabelAndMessage
inlineStyle="font-weight:bold;"
label="Country:"
tip=" "
showRequired="true"
for="CountryId">
<af:selectOneChoice id="CountryId"
               valuePassThru="true"
               value="#{bindings.CountryId.inputValue}"
               autoSubmit="true"
               inlineStyle="width:221px"
               simple="true">
     <af:forEach var="item"
          items="#{bindings.CountriesListIterator.allRowsInRange}">
     <af:selectItem value="#{item.countryId}"
               label="#{item.countryName}"/>
     </af:forEach>
</af:selectOneChoice>
</af:panelLabelAndMessage>
<af:panelLabelAndMessage
inlineStyle="font-weight:bold;"
label="City:"
tip=" "
showRequired="true"
for="CityId">
<af:selectOneChoice id="CityId"
               valuePassThru="true"
               value="#{bindings.CityId.inputValue}"
               partialTriggers="CountryId"
               autoSubmit="true"
               inlineStyle="width:221px"
               unselectedLabel="--Select City--"
               simple="true">
     <f:selectItems value="#{backing_CountryCityBean.citiesSelectItems}"/>
</af:selectOneChoice>
</af:panelLabelAndMessage>

Samsam,
I haven't seen this problem myself, no.
To clarify - are you seeing this behaviour when running your app in JDeveloper, or when running in an application server? If in JDeveloper, a copuple of suggestions:
* (may not matter, but...) It's not supported to run JDev 10g with JDK 6
* have you tried the [url http://www.oracle.com/technology/pub/articles/masterj2ee/j2ee_wk11.html]memory profiler
Best,
John

SDO_GEOMETRY displaying in Oracle SQL Developer (freezing)

Hi,
I am using Oracle SQL Developer (V 1.5.3) heavily at work, and have noticed some undesirable behaviour when the table's data tab is trying to display SDO_GEOMETRY. In this version (and subsequent ones) Developer tries to convert the geometry to WKT, instead of just displaying "sdo_geometry". I can see why this has been added in, however I am using many geometries that are quite large, and have extremely large sdo_ordinate_array/s . This is causing Developer to appear to be freezing while it runs the conversion, often hanging for many minutes at a time. I have briefly looked at V 2.1, and it appears to be the same.
Does anyone know if there is a check box option, or similar to switch this behaviour off? Limiting the number of rows returned has been suggested, but even when dealing with a STATES table the 9 rows needed for all 9 Australian states is far too large for a data tab display. If an option doesn't currently exist, it might be worth adding in to future versions of SQL developer.
regards, Jeff

Hello,
I´ve the same problem. I use version 3.0.03 (3.45) but I can´t find the possibility to change this option.
Can someone help me?
Thanks
Peter

JAR conflicts in Oracle SQL Developer Extension

Hi,
I am developing a extension for Oracle SQL Developer. I want to use JavaFX to show a WebView inside SQLDeveloper, so I imported such library.
When I try to use such library, the program crashes with an error (NoSuchMethodError) pointing to the constructor of JSObject. The problem is that oracle.help_5.0 (bundled with sql developer) and JavaFX (in the future is going to be bundled in jre) defines the same class (netscape.javascript.JSObject) with different implementations.
My question is that if it is possible to define/modify the ClassLoader to serve the JSObject provided by JavaFX library to the JavaFX library.
Thank you in advance!

Thats odd.
Do you see any exceptions in console ? (to see the console launch sqldeveloper.exe in ../sqldeveloper/sqldeveloper/bin dir.)
-Raghu

Debugging in Oracle SQL Developer

I would like to know how to debug my PL / SQL programs in the Oracle SQL Developer program using breakpoints and such. I've never known how to use debugging tools like this and since this program provides this kind of feature, I was wondering if anyone on here might be able to shine some light on this for me. How are these used? How could I use them to say, figure out what the value of a given variable might be on line whatever? Etc.
One reason I'm setting out to learn this is because I'm tired of typing DBMS_OUTPUT.PUT_LINE all the time. I would think that there must be a better way than this.
Lastly (and while we're on that subject), what would cause SQL Developer to not output a DBMS_OUTPUT.PUT_LINE line? I've given this a string of text to output to the monitor and it's not working. It's in the DECLARE section (thinking I could place these almost anywhere my tiny little heart desired, but apparently, I'm wrong?)
Again, any insight is appreciated.

- K - :
Oh, I get it... We had another pesky drop-out fishing for homework cheats again, right?
Here's a suggestion to make this forum (you know, a place where people come together who all think differently about things both deep and shallow) somewhat more accepting and useful a place for idiots like me who might happen to overlook an apparently obvious "Help" menu item with the glowing neon-colored label heading of "Table of Contents": instead of wasting your own time (let alone, others) by posting silly responses that serve arbitrary agendas for the sake of inflating one's ego and online rep points due to having a bad high school experience, why not just instead take a high road (all the real Oracle kings around here hopefully take) and either ignore the response altogether or post something at least 1% useful. Sound like a plan? Great! For instance, why not inquire about why someone posted something that might not make sense to you? It's an amazing concept...
Because after all...
"+I'm often perplexed about the "answers" we get. Seems like you never posted your suggestions.+"
...doesn't do a lot for people who come across this thread in similar straights or perspective I was in at the time of creating it.
That said, something like...
"+Since you're using Oracle SQL Developer, you should have a 'Help' menu item near the top of the window. Click on it and then click on 'Table of Contents'. Proceed to do as Jim suggested by locating the topic 'Running and Debugging Functions and Procedures'. In that section of the contents, you will find more information about debugging your program, tips and tricks, etc. If this doesn't help you or if you're unsure about something in general, feel free to post back and we'll try to help you further.+"
...is much more helpful and succinct. It's welcoming, objective, and very informative (not that Jim's response wasn't).
On that note, Jim, I do appreciate your response. When I first read your suggestion, I had misinterpreted what you proposed in the heat of the moment. Above all else, I also had some things going on around me that were distracting me. Thanks again. I'm reading the topic right now...

Oracle.sql.AnyDataFactory ThreadLocal? causing classloader leak

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