Java.io.NotSerializableException: java.awt.BasicStroke - really confusing

I have a class Box which has two member Size and Location, both Serializable.
Then I have several classes (e.g. Node) which extend Box.
None of all the classes (Box, Size, Location and all extensions of Box e.g. Node) use BasicStroke. I commented out the import of BasicStroke in all classes that are Serializable, so it cannot be used anywhere.
The problem is I use drag and drop, and when Box is also Serializable I get the following error when trying to drop:
java.io.NotSerializableException: java.awt.BasicStroke
     at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081)
     at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
     at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
     at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
     at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
     at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1251)
     at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1075)
     at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
     at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:391)
     at java.util.Vector.writeObject(Vector.java:1018)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917)
     at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339)
     at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
     at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
     at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
     at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
     at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
     at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
     at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
     at sun.awt.datatransfer.TransferableProxy.getTransferData(TransferableProxy.java:66)
     at java.awt.dnd.DropTargetContext$TransferableProxy.getTransferData(DropTargetContext.java:359)
     at kfotobook.kgui.KPageViewer.getFlavorData(KPageViewer.java:767)
     at kfotobook.kgui.KPageViewer.getFlavorData(KPageViewer.java:750)
     at kfotobook.kgui.KPageViewer.drop(KPageViewer.java:791)
     at java.awt.dnd.DropTarget.drop(DropTarget.java:430)
     at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(SunDropTargetContextPeer.java:500)
     at sun.awt.dnd.SunDropTargetContextPeer.access$800(SunDropTargetContextPeer.java:53)
     at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchDropEvent(SunDropTargetContextPeer.java:812)
     at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchEvent(SunDropTargetContextPeer.java:736)
     at sun.awt.dnd.SunDropTargetEvent.dispatch(SunDropTargetEvent.java:29)
     at java.awt.Component.dispatchEventImpl(Component.java:3826)
     at java.awt.Container.dispatchEventImpl(Container.java:2024)
     at java.awt.Component.dispatchEvent(Component.java:3803)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
     at java.awt.LightweightDispatcher.processDropTargetEvent(Container.java:3963)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3817)
     at java.awt.Container.dispatchEventImpl(Container.java:2010)
     at java.awt.Window.dispatchEventImpl(Window.java:1774)
     at java.awt.Component.dispatchEvent(Component.java:3803)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.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)
I do not know how to better describe the error, because I have no clue why BasicStrokes is tried to serialize at all. I am really confused, but perhaps somebody has seen something similar and can give a hint.
Message was edited by:
kudi

Thanks for the hint. Actually I must say once more that I was too tired that I have overseen a memeber field because of bad code layout :-( I better went to sleep...
But there is still something confusing, that is also the reason why I did not search for the fields in the right class.
So I have a class Box and a class Node which extends Box. Node is the one which contains the evil AWT references. When I declare only Node as Serializable, it works. But when I also declare the super class Box as Serializable the error occured.
In my opinion a Serializable sub class with a super class which does not implement Serializable does not make sence, but as an accident I did it. What is the semantic in such a case? (At least I know it could not serialize the sub class as expected...)
Message was edited by:
kudi

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that there was some thread there in BallProxy but i removed all from them and now testingIf you don't post the code people ask to see, you may never get a useful answer here.
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Now i m updating the code, i needed the confirmationConfirmation of what?
and now trying to avoid them.Them?
But what if i need them.Them?
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Java.io.NotSerializableException when overwrite the JTable data into .txt

hi everyone
i had java.io.NotSerializableException: java.lang.reflect.Constructor error when overwrite the JTable data into .txt file.
At the beginning, the code will be generate successfully and the jtable
will be showing out with the data that been save in the studio1.txt
previously,
but after i edit the data at the JTable, and when i trying to click the
save button, the error had been showing out and i cannot succeed to
save the JTable with the latest data.
After this error, the code can't be run again and i had to copy the studio1.txt again to let the code run 1 more time.
I hope i can get any solution at here and this will be very useful for me.
but i dunno how to attach my .txt file with this forum
did anyone need the .txt file?
the following is my suspect code
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
String filename1 = "studio1.txt";
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String filename1="studio1.txt";
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          }Edited by: Taufulou on Jan 8, 2009 11:43 PM
Edited by: Taufulou on Jan 8, 2009 11:44 PM
Edited by: Taufulou on Jan 8, 2009 11:45 PM

is this the code u mean?
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if (jTable2.isEditing()) {
            jTable2.getCellEditor().stopCellEditing();
        }i had found a new thing that when i just double click the cell without change any data inside the table
and click the button "Save". the same exception which is
java.io.NotSerializableException: java.lang.reflect.Constructor
will come out again.

Java.io.NotSerializableException

I am running iplanet ias 6.0 sp3 with web server 6.0 sp1. I
successfully deployed an ear file that contains the war and the jar to
the APPS dir. The session ejbs and the entity ejbs are packed into the
jar file which are deployed with the ear.
I have two piece of testing code. One is a standalone java program.
The other one is a jsp page together with the jsp bean which are packed
into the war file in the ear. The jsp bean code and the standalone
program are doing the same thing. They call a session ejb which calls an
entity bean.
I have made 2 experiments
1> Start server, run the standalone test, got the correct result.
Then run the jsp from the browser, got the correct result.
2> Start server, run the jsp from the browser, fail to get the
result. run the standalone test, fail to get the result
The paten is very consistent. The code and the error msg for test 2 are
attached. Could any one tell me what might cause the problem in the
second test and how to resolve the it ?
Thank in advance
Xiao
When the test fails, I got the following error msg from the console.
[10/Nov/2001 12:08:08:3] info: --------------------------------------
[10/Nov/2001 12:08:11:0] error: EBFP-serialize: error during
serialization of me
thod, exception = java.io.NotSerializableException: java.util.Vector$1
java.io.NotSerializableException: java.util.Vector$1
at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:845)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:342)
at
java.io.ObjectOutputStream.outputArray(ObjectOutputStream.java:811)
at
java.io.ObjectOutputStream.checkSubstitutableSpecialClasses(ObjectOut
putStream.java:432)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:337)
at
java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:
1567)
at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java
:453)
at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:911)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:342)
at com.kivasoft.ebfp.FPSerializable.serialize(Unknown Source)
at com.kivasoft.thread.ThreadBasic.run(Native Method)
at java.lang.Thread.run(Thread.java:479)
[10/Nov/2001 12:08:11:0] warning: EB-invalidate_delegate: instance
com.plateausy
[email protected] threw
an unche
cked or system exception, ex = ElmsUncheckedException:
getHolidayProfileHolidays()
Nested stack traces:
java.rmi.ServerException: RemoteException occurred in server thread;
nested exce
ption is:
java.rmi.ConnectIOException: <mapped>
java.rmi.ConnectIOException: <mapped>
<<no stack trace available>>
[10/Nov/2001 12:08:11:0] error: Exception Stack Trace:
ElmsUncheckedException:
getHolidayProfileHolidays()
Nested stack traces:
java.rmi.ServerException: RemoteException occurred in server thread;
nested exce
ption is:
java.rmi.ConnectIOException: <mapped>
java.rmi.ConnectIOException: <mapped>
<<no stack trace available>>
at
com.plateausystems.elms.bo.holidayprofile.ejb.HolidayProfileManagerBe
an.getHolidayProfileHolidays(Unknown Source)
at java.lang.reflect.Method.invoke(Native Method)
at
com.plateausystems.elms.bo.holidayprofile.ejb.ejb_skel_com_plateausys
tems_elms_bo_holidayprofile_ejb_HolidayProfileManagerBean.getHolidayProfileHolid
ays(ejb_skel_com_plateausystems_elms_bo_holidayprofile_ejb_HolidayProfileManager
Bean.java:207)
at
com.plateausystems.elms.bo.holidayprofile.ejb.ejb_kcp_skel_HolidayPro
fileManager.getHolidayProfileHolidays__seq_com_plateausystems_elms_bo_holidaypro
__13918743(ejb_kcp_skel_HolidayProfileManager.java:326)
at com.kivasoft.thread.ThreadBasic.run(Native Method)
at java.lang.Thread.run(Thread.java:479)
ERROR [Thread-37] (?:?) - <HolidayProfileManagerJB:getHolidayVOs>Can't
get Holid
ayVOs by holiday profile id.java.rmi.ServerException: RemoteException
occurred i
n server thread; nested exception is:
javax.transaction.TransactionRolledbackException
*************************************************************end of
error msg
The attached is session and entity bean code segment.
In the entity bean:
public Enumeration ejbFindByHolidayProfileID(String id) {
Vector list = new Vector();
try {
Connection connection = DBUtil.getConnection();
try {
PreparedStatement s =
connection.prepareStatement(sqlFindByHolidayProfileID);
try {
s.setString(1, id);
ResultSet rs = s.executeQuery();
try {
while (rs.next()) {
HolidayProfileHolidayPK pk = new
HolidayProfileHolidayPK();
pk.holidayProfileID = rs.getString("hol_prfl_id");
pk.holidayID = rs.getString("hol_id");
list.add(pk);
} finally {
rs.close();
} finally {
s.close();
} finally {
connection.close();
} catch (Exception e) {
throw new EJBException(e);
return list.elements();
In the session bean:
public HolidayProfileHolidayVO[] getHolidayProfileHolidays(String
holidayProfileID) throws ElmsFinderException
HolidayProfileHolidayVO[] vos = null;
ArrayList alst = new ArrayList();
HolidayProfileHolidayHome hphHome =
this.getHolidayProfileHolidayHome();
try {
java.util.Enumeration enum =
hphHome.findByHolidayProfileID(holidayProfileID);
while (enum.hasMoreElements()) {
Object obj = enum.nextElement();
HolidayProfileHoliday bean =
(HolidayProfileHoliday)javax.rmi.PortableRemoteObject.narrow(obj,
HolidayProfileHoliday.class);
alst.add(bean.getVO());
} catch (FinderException e) {
// throw as new ElmsCheckedException subclass
throw new ElmsFinderException("getHolidayProfileHolidays(id):
Could not find HolidayProfileHolidays.", e);
} catch (RemoteException e) {
// throw as new ElmsUncheckedException
throw new ElmsUncheckedException(
"getHolidayProfileHolidays()", e);
} catch (RuntimeException e) {
throw new ElmsUncheckedException(e);
if (alst.size()>0) vos =
(HolidayProfileHolidayVO[])alst.toArray(new HolidayProfileHolidayVO[1]);
return vos;
}

Xiao,
We have the same problem.
The reason why your stand alone works, but your browser based doesn't,
is because the iPlanet Application server requires that all EJBs, all
objects held in any EJB, all objects held in attributes in an
HttpSession, and all objects held in those objects MUST implement
java.io.Serializable.
The unfortunate reason why iPlanet does this is because iPlanet does not
preserve the state of objects in memory across hits to the server.
iPlanet serializes each and every object mentioned above when the HTML
is returned to the client, and then un-serializes all the objects again
when it receives another hit from the client. This is true even in the
case of no-dsync sticky load balancing.
This is ridiculous. We use sticky load balancing and we have many
objects stored in HttpSession attributes which we do not want to be
serialized every hit to the server, in the interest of speed. It takes
too long to serialize all the objects, and it would take way too long to
save them in a database every hit.
David Shade
xluo888 wrote:
>
I am running iplanet ias 6.0 sp3 with web server 6.0 sp1. I
successfully deployed an ear file that contains the war and the jar to
the APPS dir. The session ejbs and the entity ejbs are packed into the
jar file which are deployed with the ear.
I have two piece of testing code. One is a standalone java program.
The other one is a jsp page together with the jsp bean which are packed
into the war file in the ear. The jsp bean code and the standalone
program are doing the same thing. They call a session ejb which calls an
entity bean.
I have made 2 experiments
1> Start server, run the standalone test, got the correct result.
Then run the jsp from the browser, got the correct result.
2> Start server, run the jsp from the browser, fail to get the
result. run the standalone test, fail to get the result
The paten is very consistent. The code and the error msg for test 2 are
attached. Could any one tell me what might cause the problem in the
second test and how to resolve the it ?
Thank in advance
Xiao
When the test fails, I got the following error msg from the console.
[10/Nov/2001 12:08:08:3] info: --------------------------------------
[10/Nov/2001 12:08:11:0] error: EBFP-serialize: error during
serialization of me
thod, exception = java.io.NotSerializableException: java.util.Vector$1
java.io.NotSerializableException: java.util.Vector$1
at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:845)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:342)
at
java.io.ObjectOutputStream.outputArray(ObjectOutputStream.java:811)
at
java.io.ObjectOutputStream.checkSubstitutableSpecialClasses(ObjectOut
putStream.java:432)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:337)
at
java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:
1567)
at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java
:453)
at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:911)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:342)
at com.kivasoft.ebfp.FPSerializable.serialize(Unknown Source)
at com.kivasoft.thread.ThreadBasic.run(Native Method)
at java.lang.Thread.run(Thread.java:479)
[10/Nov/2001 12:08:11:0] warning: EB-invalidate_delegate: instance
com.plateausy
[email protected] threw
an unche
cked or system exception, ex = ElmsUncheckedException:
getHolidayProfileHolidays()
Nested stack traces:
java.rmi.ServerException: RemoteException occurred in server thread;
nested exce
ption is:
java.rmi.ConnectIOException: <mapped>
java.rmi.ConnectIOException: <mapped>
<<no stack trace available>>
[10/Nov/2001 12:08:11:0] error: Exception Stack Trace:
ElmsUncheckedException:
getHolidayProfileHolidays()
Nested stack traces:
java.rmi.ServerException: RemoteException occurred in server thread;
nested exce
ption is:
java.rmi.ConnectIOException: <mapped>
java.rmi.ConnectIOException: <mapped>
<<no stack trace available>>
at
com.plateausystems.elms.bo.holidayprofile.ejb.HolidayProfileManagerBe
an.getHolidayProfileHolidays(Unknown Source)
at java.lang.reflect.Method.invoke(Native Method)
at
com.plateausystems.elms.bo.holidayprofile.ejb.ejb_skel_com_plateausys
tems_elms_bo_holidayprofile_ejb_HolidayProfileManagerBean.getHolidayProfileHolid
ays(ejb_skel_com_plateausystems_elms_bo_holidayprofile_ejb_HolidayProfileManager
Bean.java:207)
at
com.plateausystems.elms.bo.holidayprofile.ejb.ejb_kcp_skel_HolidayPro
fileManager.getHolidayProfileHolidays__seq_com_plateausystems_elms_bo_holidaypro
__13918743(ejb_kcp_skel_HolidayProfileManager.java:326)
at com.kivasoft.thread.ThreadBasic.run(Native Method)
at java.lang.Thread.run(Thread.java:479)
ERROR [Thread-37] (?:?) - <HolidayProfileManagerJB:getHolidayVOs>Can't
get Holid
ayVOs by holiday profile id.java.rmi.ServerException: RemoteException
occurred i
n server thread; nested exception is:
javax.transaction.TransactionRolledbackException
*************************************************************end of
error msg
The attached is session and entity bean code segment.
In the entity bean:
public Enumeration ejbFindByHolidayProfileID(String id) {
Vector list = new Vector();
try {
Connection connection = DBUtil.getConnection();
try {
PreparedStatement s =
connection.prepareStatement(sqlFindByHolidayProfileID);
try {
s.setString(1, id);
ResultSet rs = s.executeQuery();
try {
while (rs.next()) {
HolidayProfileHolidayPK pk = new
HolidayProfileHolidayPK();
pk.holidayProfileID = rs.getString("hol_prfl_id");
pk.holidayID = rs.getString("hol_id");
list.add(pk);
} finally {
rs.close();
} finally {
s.close();
} finally {
connection.close();
} catch (Exception e) {
throw new EJBException(e);
return list.elements();
In the session bean:
public HolidayProfileHolidayVO[] getHolidayProfileHolidays(String
holidayProfileID) throws ElmsFinderException
HolidayProfileHolidayVO[] vos = null;
ArrayList alst = new ArrayList();
HolidayProfileHolidayHome hphHome =
this.getHolidayProfileHolidayHome();
try {
java.util.Enumeration enum =
hphHome.findByHolidayProfileID(holidayProfileID);
while (enum.hasMoreElements()) {
Object obj = enum.nextElement();
HolidayProfileHoliday bean =
(HolidayProfileHoliday)javax.rmi.PortableRemoteObject.narrow(obj,
HolidayProfileHoliday.class);
alst.add(bean.getVO());
} catch (FinderException e) {
// throw as new ElmsCheckedException subclass
throw new ElmsFinderException("getHolidayProfileHolidays(id):
Could not find HolidayProfileHolidays.", e);
} catch (RemoteException e) {
// throw as new ElmsUncheckedException
throw new ElmsUncheckedException(
"getHolidayProfileHolidays()", e);
} catch (RuntimeException e) {
throw new ElmsUncheckedException(e);
if (alst.size()>0) vos =
(HolidayProfileHolidayVO[])alst.toArray(new HolidayProfileHolidayVO[1]);
return vos;

Java.io.NotSerializableException Problem

I am getting the following exception when trying to serialize a Stack of objects.
java.io.NotSerializableException: java.lang.reflect.Method
The objects that I am trying to serialize already implements serializable.
What could be the problem?

The problem is that java.lang.Method is not serializable and some class somewhere has a non-static non-transient reference to a Method.

Java.io.NotSerializableException in WL6

All,
          I have a servlet calling a user/group manager stateless session bean.
          The same code works well in WL5.1.0.
          Recently I migrated to WL6 and found there is a serialization problem.
          Rebuild the EJB jar with WL6 ejb
          compiler did not solve the problem. Here is the detail:
          In the remote interface I have a method called assignGroups().
          public interface InfUserGroupManager extends EJBObject {
          public void assignGroups(InfIIPSession session, InfDBObjectPK userPk,
          Collection groupIds)
          throws RemoteException, InfInsufficientPrivilegeException;
          In a servlet I have code like this:
          InfUserGroupManager mgr = ....; // Gets a reference to InfUserGroupManager
          stateless session bean.
          HashMap groups = .....; // Both keys and values are java.lang.Integer
          objects.
          Collection assignedGroups = groups.values();
          mgr.assignGroups(iipSession, userPk, assignedGroups);
          java.util.HashMap and java.lang.Integer are both serializable. However, when
          trying to invoke the
          assignGroups() method on the InfUserGroupManager object will raise
          exception.
          javax.servlet.ServletException: failed to marshal
          public abstract void
          com.informatica.security.manager.InfUserGroupManager.assignGroups
          (com.informatica.session.InfIIPSession,com.informatica.repository.InfDBObjec
          tPK,java.util.Collection)
          throws
          java.rmi.RemoteException,com.informatica.util.InfInsufficientPrivilegeExcept
          ion;
          nested exception is:
          java.io.NotSerializableException: java.util.HashMap$2
          at
          com.informatica.viewer.portal.servlets.commands.InfUserCmd.assignGroups(InfU
          serCmd.java:168)
          at
          com.informatica.viewer.portal.servlets.commands.InfUserCmd.saveModel(InfUser
          Cmd.java:132)
          at
          com.informatica.servlet.command.InfAbstractMultiFormCommand.execute(InfAbstr
          actMultiFormCommand.java:100)
          at
          com.informatica.servlet.InfCommandServlet.processRequest(InfCommandServlet.j
          ava:89)
          at
          com.informatica.servlet.InfCommandServlet.doPost(InfCommandServlet.java:67)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
          at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :208)
          at
          weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
          ntext.java:1127)
          at
          weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
          :1529)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)


We are getting this same error. Was any resolution found?
"Steve Rolls" <[email protected]> wrote in message
news:[email protected]..
When binding non-serializable objects into the JNDI tree with WL6 + SP1,
a java.io.NotSerializableException is thrown. This is in a non-cluster
environment and the context's replicate bindings flag is set to false.
Here is the WL portion of the exception's stack trace
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1148)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
at java.util.Hashtable.writeObject(Hashtable.java:757)
at java.lang.reflect.Method.invoke(Native Method)
atjava.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1878)
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
atweblogic.rmi.internal.CBVOutputStream.writeObjectInternal(CBVOutputStream.ja
va:220)
atweblogic.rmi.internal.CBVOutputStream.writeObject(CBVOutputStream.java:213)
atweblogic.rmi.internal.CBVOutputStream.writeObject(CBVOutputStream.java:190)
at weblogic.rmi.internal.ObjectIO.writeObject(ObjectIO.java:19)
atweblogic.rmi.internal.BasicRemoteRef.marshalArgs(BasicRemoteRef.java:121)
atweblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:246)
atweblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:225)
atweblogic.jndi.internal.ServerNamingNode_WLStub.bind(ServerNamingNode_WLStub.
java:436)
at weblogic.jndi.internal.WLContextImpl.bind(WLContextImpl.java:337)
at javax.naming.InitialContext.bind(InitialContext.java:358)
Is there some new setting in WL6 that controls this bevavior or is this abug?
>
thanks,
Steve

Java.io.NotSerializableException in Query

All,
I am encountering a strange java.io.NotSerializable error on certain
queries. I am using Kodo Std 2.2.6 (trial version) on RH7.1 with Postgres
7.1 (inside a Struts 1.1 servlet running inside Tomcat 4.1).
The error is the following: I am attempting to find "Resources" that have
associated "File"s, where those files have "FileRole" == a particular
FileRole object.
The objects (simplified) are:
public class Resource {
File file;
String driver;
String driverId;
public class File {
FileRole fileRole;
public class FileRole {
String name;
The query is:
public List findByDriver(String driver, String driverId, FileRole fileRole)
List li = null;
try {
String filter = "driver == driverString && driverId ==
driverIdString && file.fileRole == theFileRole";
Extent beanExtent =
JDOManager.getInstance().getPersistenceManager().getExtent(Resource.class,
false);
Query q =
JDOManager.getInstance().getPersistenceManager().newQuery(Resource.class,
beanExtent, filter);
q.declareImports("import lepton.core.file.File;" + "import
lepton.core.file.FileRole");
q.declareParameters("String driverString, String driverIdString,
FileRole theFileRole);
ArrayList queryArray = new ArrayList();
queryArray.add(driver);
queryArray.add(driverId);
queryArray.add(fileRole);
Collection results = (Collection) q.execute(queryArray);
li = new ArrayList(results);
} catch (Exception e) {
throw new LeptonException(e);
return li;
The error is:
javax.jdo.JDOException: lepton.core.file.FileRole
NestedThrowables:
java.io.NotSerializableException: lepton.core.file.FileRole
at
com.solarmetric.kodo.impl.jdbc.schema.dict.GenericDictionary.toSQL(GenericDi
ctionary.java:169)
at
com.solarmetric.kodo.impl.jdbc.runtime.JDBCExpressionFactory$Constant.(JDBCE
xpressionFactory.java:465)
at
com.solarmetric.kodo.impl.jdbc.runtime.JDBCExpressionFactory.getConstant(JDB
CExpressionFactory.java:229)
at
com.solarmetric.kodo.impl.jdbc.runtime.JDBCExpressionFactory.getParameter(JD
BCExpressionFactory.java:249)
at com.solarmetric.kodo.query.FilterParser.eval(FilterParser.java:563)
at com.solarmetric.kodo.query.FilterParser.getValue(FilterParser.java:669)
at com.solarmetric.kodo.query.FilterParser.eval(FilterParser.java:582)
at
com.solarmetric.kodo.query.FilterParser.getExpression(FilterParser.java:678)
at com.solarmetric.kodo.query.FilterParser.eval(FilterParser.java:653)
at
com.solarmetric.kodo.query.FilterParser.getExpression(FilterParser.java:678)
at com.solarmetric.kodo.query.FilterParser.eval(FilterParser.java:653)
at
com.solarmetric.kodo.query.FilterParser.getExpression(FilterParser.java:678)
at com.solarmetric.kodo.query.FilterParser.eval(FilterParser.java:653)
at
com.solarmetric.kodo.query.FilterParser.getExpression(FilterParser.java:678)
at com.solarmetric.kodo.query.FilterParser.evaluate(FilterParser.java:530)
at com.solarmetric.kodo.query.QueryImpl.getExpression(QueryImpl.java:502)
at com.solarmetric.kodo.query.QueryImpl.getExpression(QueryImpl.java:468)
at
com.solarmetric.kodo.impl.jdbc.runtime.JDBCQuery.getExpression(JDBCQuery.jav
a:190)
at com.solarmetric.kodo.query.QueryImpl.executeWithMap(QueryImpl.java:342)
at
com.solarmetric.kodo.query.QueryImpl.executeWithArray(QueryImpl.java:529)
at com.solarmetric.kodo.query.QueryImpl.execute(QueryImpl.java:314)
at lepton.knowledgebase.ResourceHome.findByDriver(ResourceHome.java:91)
My jdo mappings (simplified) are:
Resource:
<jdo>
<package name="lepton.knowledgebase">
<class name="Resource" >
<field name="driver">
</field>
<field name="driverId">
</field>
<field name="file">
</field>
</class>
</package>
</jdo>
File:
<jdo>
<package name="lepton.core.file">
<class name="File" >
<field name="fileRole">
</field>
</class>
</package>
</jdo>
FileRole:
<jdo>
<package name="lepton.core.file">
<class name="FileRole" >
<field name="name">
<extension vendor-name="kodo"
key="column-index"
value="true" />
</field>
</class>
</package>
</jdo>
Any help/suggestions would be greatly appreciated. I am seeing this error
in one other query, with a similar (but slightly more involved) syntax.
(The point of commonality is querying a somewhat distant--but
related--portion of the object graph, in the form xx.xx.xx == yy).
Thanks,
David
David Sachs
Redpoint Ventures
[email protected]

Abe,
Thanks again for your help. I discovered (much to my embarassment) that
this was a case of a massively silly error on my part, and a somewhat
misleading error message.
The cause of the problem was my query--Kodo is working great.
I had:
public List findByDriver(String driver, String driverId, FileRole fileRole)
q.declareParameters("String driverString, String driverIdString,
FileRole theFileRole);
ArrayList queryArray = new ArrayList();
queryArray.add(driver);
queryArray.add(driverId);
queryArray.add(fileRole);
Collection results = (Collection) q.execute(queryArray);
This should be:
q.declareParameters("String driverString, String driverIdString,
FileRole theFileRole);
Map queryMap = new HashMap();
queryMap.add(driver);
queryMap.add(driverId);
queryMap.add(fileRole);
Collection results = (Collection) q.executeWithMap(queryMap);
It works perfectly, as does the other case in which I saw a
java.io.NotSerializable error.
Anyway, sorry to have wasted your time on this, but maybe there is some way
to make the reported error slightly more specific. As an aside, I did try
to track down whether a superfluous jdo/kodo.jar was lurking anywhere in
Kodo's classpath, but I didn't find anything. Clearly (since this now
works), the properly enhanced FileRole class is present, but the error
message was didn't indicate that I was wildly misusing the q.executeXXX
facility.
Anyway, thanks very much for your assistance, and sorry to have led you
astray chasing down a user error.
David
"Abe White" <[email protected]> wrote in message
news:[email protected]...
I wasn't able to find a class called"javax.jdo.spi.PersistenceCapable"--did
you mean just "javax.jdo.PersistenceCapable?"Yeah, sorry. In JDO 1.0 they moved PersistenceCapable to the 'spi'subpackage;
Kodo 2.2.6 (unlike 2.3, which is out now), uses an older version of the spec.
>
Assuming that you meant javax.jdo.PersistenceCapable, my class reportsthat
it IS persistence capable.Well I've checked our code (the version that you're using), and itcouldn't
really be more clear. It's basically:
if (obj instanceof PersistenceCapable)
... 1 ...
else
... 2 ...
And your stack trace ends up in position 2. That means that to Kodo, that
object is not persistence capable. This has to be a class loader issue.
I assume your install script is run outside of the servlet? Or in a
different web app? Tomcat does some funky things with class loaders; ifyou
have multiple JDO jars floating around there might also technically be
multiple PersistenceCapable classes, and the one Kodo sees is differentthan
the one your application sees. Make sure both the kodo jars and the jdojars
are only in a single location.
This makes sense, since I have been able to create and make persistent
instances of the FileRole class. (I can successfully create a bunch of
FileRoles and persist them to my database as part of my install script,
which would alos fail were FileRole not enhanced).
Any ideas?
Thanks very much,
David
"Abe White" <[email protected]> wrote in message
news:[email protected]...
David --
Before you execute the query, can you please check to see that
(fileRole instanceof javax.jdo.spi.PersistenceCapable) ?
If a parameter isn't persistence-capable, we try to convert it to SQL;
for complex types, this means serializing it. I have a feeling there
is
a class loader issue or something where an unenhanced version of your
class is sneaking in. Let us know what you find out.

Java.io.NotSerializableException when using POF over Extend

I changed a class to use POF and it seems to work fine among TCMP cluster members but when apps connect with Extend I get an exception indicating that maybe either the extend proxy or client app is not correctly configured to use POF.
(Wrapped) java.io.NotSerializableException: dj_quotes.DJ_Quote
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:269)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.send(Peer.CDB:22)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.post(Peer.CDB:23)
        at com.tangosol.coherence.component.net.extend.Channel.post(Channel.CDB:25)
        at com.tangosol.coherence.component.net.extend.Channel.send(Channel.CDB:6)
        at com.tangosol.coherence.component.net.extend.Channel.receive(Channel.CDB:55)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer$DaemonPool$WrapperTask.run(Peer.CDB:9)
        at com.tangosol.coherence.component.util.DaemonPool$WrapperTask.run(DaemonPool.CDB:32)
        at com.tangosol.coherence.component.util.DaemonPool$Daemon.onNotify(DaemonPool.CDB:63)
        at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.NotSerializableException: dj_quotes.DJ_Quote
        at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)
        at com.tangosol.util.ExternalizableHelper.writeSerializable(ExternalizableHelper.java:2252)
        at com.tangosol.util.ExternalizableHelper.writeObjectInternal(ExternalizableHelper.java:2696)
        at com.tangosol.util.ExternalizableHelper.serializeInternal(ExternalizableHelper.java:2600)
        at com.tangosol.util.ExternalizableHelper.toBinary(ExternalizableHelper.java:210)
        at com.tangosol.coherence.component.net.extend.proxy.serviceProxy.CacheServiceProxy$ConverterToBinary.convert(CacheServiceProxy.CDB:3)
        at com.tangosol.util.ConverterCollections$AbstractConverterEntry.getValue(ConverterCollections.java:3547)
        at com.tangosol.io.pof.PofBufferWriter.writeMap(PofBufferWriter.java:1977)
        at com.tangosol.coherence.component.net.extend.message.Response.writeExternal(Response.CDB:23)
        at com.tangosol.coherence.component.net.extend.message.response.PartialResponse.writeExternal(PartialResponse.CDB:1)
        at com.tangosol.coherence.component.net.extend.Codec.encode(Codec.CDB:23)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.encodeMessage(Peer.CDB:23)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.peer.acceptor.TcpAcceptor.encodeMessage(TcpAcceptor.CDB:8)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.send(Peer.CDB:16)
        ... 9 moreLooks like it failed while attempting default serialization, right?
My extend proxy servers start with
-Dtangosol.coherence.cacheconfig=cache-config-extend-proxy.xml
here:
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config>
     
     <caching-scheme-mapping>
          <cache-mapping>
               <cache-name>quotes.*</cache-name>
               <scheme-name>quotes-scheme</scheme-name>
          </cache-mapping>
     </caching-scheme-mapping>
     
     <caching-schemes>
          <proxy-scheme>
      <service-name>ExtendTcpProxyService</service-name>
      <thread-count>8</thread-count>
      <acceptor-config>
        <tcp-acceptor>
          <local-address>
            <address system-property="tangosol.coherence.proxy.address">localhost</address>
            <port system-property="tangosol.coherence.proxy.port">9090</port>
          </local-address>
        </tcp-acceptor>
      </acceptor-config>
      <proxy-config>
              <cache-service-proxy>
                <lock-enabled>true</lock-enabled>
              </cache-service-proxy>
          </proxy-config>
      <autostart>true</autostart>
    </proxy-scheme>
          <distributed-scheme>
               <scheme-name>quotes-scheme</scheme-name>
               <service-name>DistributedQuotesCacheService</service-name>
               <serializer>
                    <class-name>com.tangosol.io.pof.ConfigurablePofContext</class-name>
                    <init-params>
          <init-param>
            <param-type>string</param-type>
            <param-value system-property="pof.config">z:/coherence/pof-config.xml</param-value>
          </init-param>
        </init-params>
               </serializer>
               <backing-map-scheme>
                    <local-scheme/>
               </backing-map-scheme>
               <autostart>true</autostart>
          </distributed-scheme>
</caching-schemes>
</cache-config>extend client apps start with
-Dtangosol.coherence.cacheconfig=z:/coherence/cache-config-extend-client.xml
here:
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config>
     
     <caching-scheme-mapping>
          <cache-mapping>
               <cache-name>quotes.*</cache-name>
               <scheme-name>extend-scheme</scheme-name>
          </cache-mapping>
     </caching-scheme-mapping>
     
     <caching-schemes>
          <remote-cache-scheme>
                <scheme-name>extend-scheme</scheme-name>
                <service-name>ExtendTcpCacheService</service-name>
                <initiator-config>
                <tcp-initiator>
          <remote-addresses>
             <socket-address>
              <address>192.168.3.6</address>
              <port>9090</port>
            </socket-address>
          </remote-addresses>
          <connect-timeout>12s</connect-timeout>
        </tcp-initiator>
        <outgoing-message-handler>
          <request-timeout>6s</request-timeout>
        </outgoing-message-handler>
      </initiator-config>
    </remote-cache-scheme>
          
                <remote-cache-scheme>
      <scheme-name>extend-scheme-pof</scheme-name>
      <service-name>ExtendPofTcpCacheService</service-name>
               <serializer>
                    <class-name>com.tangosol.io.pof.ConfigurablePofContext</class-name>
                    <init-params>
          <init-param>
            <param-type>string</param-type>
            <param-value system-property="pof.config">z:/coherence/pof-config.xml</param-value>
          </init-param>
        </init-params>
               </serializer>
      <initiator-config>
        <tcp-initiator>
          <remote-addresses>
            
             <socket-address>
              <address>192.168.3.6</address>
              <port>9090</port>
            </socket-address>
          </remote-addresses>
          <connect-timeout>12s</connect-timeout>
        </tcp-initiator>
        <outgoing-message-handler>
          <request-timeout>6s</request-timeout>
        </outgoing-message-handler>
      </initiator-config>
    </remote-cache-scheme>
</caching-schemes>
</cache-config>pof-config.xml should be fine...
<!DOCTYPE pof-config SYSTEM "pof-config.dtd">
<pof-config>
<user-type-list>
    <include>coherence-pof-config.xml</include>
    <user-type>
      <type-id>10001</type-id>
      <class-name>dj_quotes.DJ_Quote</class-name>
    </user-type>
</user-type-list>
</pof-config>Any ideas what I missed?
Thanks,
Andrew

Looks like I spoke too soon. Moving the <serializer> to the correct location in the Extend client XML config did fix the problem I was seeing but it created a new problem. It appears the Extend client wants to use POF for everything including non-POF services like the one handling the Serializable (non-POF) object oms.Order. That's what I gather from this exception
Exception in thread "AWT-EventQueue-0" (Wrapped) java.io.IOException: unknown user type: oms.Order
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:269)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.send(Peer.CDB:22)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.post(Peer.CDB:23)
        at com.tangosol.coherence.component.net.extend.Channel.post(Channel.CDB:25)
        at com.tangosol.coherence.component.net.extend.Channel.request(Channel.CDB:18)
        at com.tangosol.coherence.component.net.extend.Channel.request(Channel.CDB:1)
        at com.tangosol.coherence.component.net.extend.RemoteNamedCache$BinaryCache.putAll(RemoteNamedCache.CDB:10)
        at com.tangosol.util.ConverterCollections$ConverterMap.putAll(ConverterCollections.java:1702)
        at com.tangosol.coherence.component.net.extend.RemoteNamedCache.putAll(RemoteNamedCache.CDB:1)
        at com.tangosol.coherence.component.util.SafeNamedCache.putAll(SafeNamedCache.CDB:1)
        at oms.Order.sendMultiple(Order.java:357)
        at order_entry_window.OrderEntryPanel$SubmitListener.sendOrder(OrderEntryPanel.java:1307)
        at order_entry_window.OrderEntryPanel$SubmitListener.actionPerformed(OrderEntryPanel.java:1321)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
        at java.awt.Component.processMouseEvent(Component.java:6504)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
        at java.awt.Component.processEvent(Component.java:6269)
        at java.awt.Container.processEvent(Container.java:2229)
        at java.awt.Component.dispatchEventImpl(Component.java:4860)
        at java.awt.Container.dispatchEventImpl(Container.java:2287)
        at java.awt.Component.dispatchEvent(Component.java:4686)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
        at java.awt.Container.dispatchEventImpl(Container.java:2273)
        at java.awt.Window.dispatchEventImpl(Window.java:2713)
        at java.awt.Component.dispatchEvent(Component.java:4686)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
        at java.awt.EventQueue.access$000(EventQueue.java:101)
        at java.awt.EventQueue$3.run(EventQueue.java:666)
        at java.awt.EventQueue$3.run(EventQueue.java:664)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
        at java.awt.EventQueue$4.run(EventQueue.java:680)
        at java.awt.EventQueue$4.run(EventQueue.java:678)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:677)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: java.io.IOException: unknown user type: oms.Order
        at com.tangosol.io.pof.ConfigurablePofContext.serialize(ConfigurablePofContext.java:341)
        at com.tangosol.util.ExternalizableHelper.serializeInternal(ExternalizableHelper.java:2596)
        at com.tangosol.util.ExternalizableHelper.toBinary(ExternalizableHelper.java:210)
        at com.tangosol.coherence.component.net.extend.RemoteNamedCache$ConverterToBinary.convert(RemoteNamedCache.CDB:4)
        at com.tangosol.util.ConverterCollections$AbstractConverterEntry.getValue(ConverterCollections.java:3547)
        at com.tangosol.io.pof.PofBufferWriter.writeMap(PofBufferWriter.java:1977)
        at com.tangosol.coherence.component.net.extend.messageFactory.NamedCacheFactory$PutAllRequest.writeExternal(NamedCacheFactory.CDB:3)
        at com.tangosol.coherence.component.net.extend.Codec.encode(Codec.CDB:23)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.encodeMessage(Peer.CDB:23)
        at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Peer.send(Peer.CDB:16)
        ... 47 more
Caused by: java.lang.IllegalArgumentException: unknown user type: oms.Order
        at com.tangosol.io.pof.ConfigurablePofContext.getUserTypeIdentifier(ConfigurablePofContext.java:420)
        at com.tangosol.io.pof.ConfigurablePofContext.getUserTypeIdentifier(ConfigurablePofContext.java:409)
        at com.tangosol.io.pof.PofBufferWriter.writeUserType(PofBufferWriter.java:1660)
        at com.tangosol.io.pof.PofBufferWriter.writeObject(PofBufferWriter.java:1622)
        at com.tangosol.io.pof.ConfigurablePofContext.serialize(ConfigurablePofContext.java:335)
        ... 56 moreSo I posted a follow-up question here:
Can an extend client use both POF and java.io.Serializable?
Thanks,
Andrew

Java.io.NotSerializableException: java.awt.BasicStroke - really confusing

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