Retrive an object from session throw class not found at findClassOnDisk exception

java.lang.ClassNotFoundException: not found at findClassOnDisk
at com.iplanet.ias.classloader.IasAppClassLoader.findClassOnDisk(Unknown Source)
at com.iplanet.ias.classloader.IasAppClassLoader.findClass(Unknown Source)
at com.iplanet.ias.classloader.IasAppClassLoader.loadClass(Unknown Source)
at com.iplanet.ias.classloader.IasAppClassLoader.loadClass(Unknown Source)
at com.iplanet.ias.classloader.IasAppClassLoader.loadClass(Unknown Source)
at com.iplanet.ias.classloader.AppClassLoaderController.loadClass(Unknown Source)
at com.netscape.server.deployment.AppComponentDescriptor.classForName(Unknown Source)
at com.kivasoft.util.Util.classForName(Unknown Source)
at com.kivasoft.eb.EBHelper.classForName(Unknown Source)
at com.kivasoft.util.NASObjectInputStream.resolveClass(Unknown Source)
at java.io.ObjectInputStream.inputClassDescriptor(ObjectInputStream.java:918)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:366)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
at java.io.ObjectInputStream.inputArray(ObjectInputStream.java:1014)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:374)
at java.io.ObjectInputStream.inputClassFields(ObjectInputStream.java:2263)
at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:519)
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1412)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)
at java.io.ObjectInputStream.inputClassFields(ObjectInputStream.java:2263)
at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:519)
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1412)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
at java.util.ArrayList.readObject(ArrayList.java:531)
at java.lang.reflect.Method.invoke(Native Method)
at java.io.ObjectInputStream.invokeObjectReader(ObjectInputStream.java:2214)
at java.io.ObjectInputStream.inputObject(ObjectInputStream.java:1411)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:386)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:236)
at com.netscape.server.servlet.platformhttp.PlatformNASSession.getMemberValue(Unknown Source)
at com.netscape.server.servlet.platformhttp.PlatformNASSession.getValue(Unknown Source)
at com.netscape.server.servlet.platformhttp.PlatformNASSession.getAttribute(Unknown Source)
at jsp.APPS.tsws_war.jsp.attachment.updateFile._jspService(updateFile.java:246)
at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown Source)
at com.netscape.server.servlet.servletrunner.ServletRunner.callJSP(Unknown Source)
Description:
1) We are using iplanet distributed session
2) We put a ArrayList of object into the session
3) Retrieve it from session immediately - no problem
4) display jsp on user browser
5) browser submit another request
6) retrieve it from session again, the above error show up. (other session attribute was able to retrieve so it is not session timeout)
if we can save the object into the session. The object 's class should be avaliable ?!?!
(currently using iplanet 6.5 with mp1 tested both on
solaris machine and win2000 machine)

I guess, the problem is due to the distributed session.
Make the session lite and check, if it works, then we can confirm that it is due to the guessed reason. Then please let me know.
Mean time I also try to reproduce the problem, and find out the solution.
Thanks and best of luck,
Rakesh.

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Sorry for the copy; a browser error. Please delete this thread

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we've just upgraded to 11.5.10 CU2 and I have downloaded new jdeveloper (4573517). On tryinmg to rebuild Tutorial.jpr I get compilation error "Initialization error. File java\lang\Object.class not found on classpath". JDEV_USER_HOME is set correctly to C:\OAJDEV11510\jdevhome\jdev and appears to be picked up in classpath settings below.
Full compilation error below:
Error: initialization error: file java\lang\Object.class not found on classpath C:\OAJDEV11510\jdevhome\jdevbin\jdk\jre\lib\rt.jar;C:\OAJDEV11510\jdevhome\jdevbin\jdk\jre\lib\i18n.jar;C:\OAJDEV11510\jdevhome\jdevbin\jdk\jre\lib\sunrsasign.jar;C:\OAJDEV11510\jdevhome\jdevbin\jdk\jre\lib\jsse.jar;C:\OAJDEV11510\jdevhome\jdevbin\jdk\jre\lib\jce.jar;C:\OAJDEV11510\jdevhome\jdevbin\jdk\jre\lib\charsets.jar;C:\OAJDEV11510\jdevhome\jdev\myclasses;C:\OAJDEV11510\jdevhome\jdev\myhtml\WEB-INF\lib\datatags.jar;C:\OAJDEV11510\jdevbin\jdev\lib\jdev-rt.jar;C:\OAJDEV11510\jdevbin\jdbc\lib\classes12.jar;C:\OAJDEV11510\jdevbin\jdbc\lib\nls_charset12.jar;C:\OAJDEV11510\jdevbin\jlib\jdev-cm.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4jmt.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\collections.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4jct.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\xmlparserv2.jar;C:\OAJDEV11510\jdevbin\j2ee\home\lib\jndi.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4jctejb.jar;C:\OAJDEV11510\jdevbin\j2ee\home\lib\ejb.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4jmtejb.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4jhtml.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\datatags.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4juixtags.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4j_jclient_common.jar;C:\OAJDEV11510\jdevbin\BC4J\jlib\bc4jctvb.jar;C:\OAJDEV11510\jdevbin\vbroker4\lib\vbjorb.jar;C:\OAJDEV11510\jdevbin\j2ee\home\lib\ojsp.jar;C:\OAJDEV11510\jdevbin\j2ee\home\jsp\lib\taglib\ojsputil.jar;C:\OAJDEV11510\jdevbin\j2ee\home\oc4j.jar;C:\OAJDEV11510\jdevbin\j2ee\home\lib\servlet.jar;C:\OAJDEV11510\jdevbin\jdev\lib\ojc.jar;C:\OAJDEV11510\jdevbin\jakarta-commons-el\jsp-el-api.jar;C:\OAJDEV11510\jdevbin\jakarta-commons-el\commons-el.jar;C:\OAJDEV11510\jdevbin\jakarta-commons-el\oracle-el.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\regexp.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\share.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\sax2.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\uix2.jar;C:\OAJDEV11510\jdevbin\mds\lib\mdsrt.jar;C:\OAJDEV11510\jdevbin\jdev\lib\mdsdt.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\oamdsdt.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\fwkjbo.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\fwk.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\wf.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\ak.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\flex.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\aolj.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\collections.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\appsSSO.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\concurrent.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\oamMaintMode.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\wsp.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\fwkCabo.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\diagnostics.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\biamlocal.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\bipres.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\bicmn.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\bidatasvr.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\bidataclt.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\bidatacmn.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\biext.jar;C:\OAJDEV11510\jdevbin\bibeans\lib\bicmn-nls.zip;C:\OAJDEV11510\jdevbin\bibeans\lib\bipres-nls.zip;C:\OAJDEV11510\jdevbin\bibeans\lib\bidata-nls.zip;C:\OAJDEV11510\jdevbin\bibeans\lib\olap_api_92.jar;C:\OAJDEV11510\jdevbin\BC4J\lib\bc4jdomorcl.jar;C:\OAJDEV11510\jdevbin\BC4J\jlib\bc4jdatum.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\rosettaRt.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\cacheFwk.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\jttComn.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\iasjoc.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\pat.zip;C:\OAJDEV11510\jdevbin\jdev\appslibrt\portalFlexComps.jar;C:\OAJDEV11510\jdevbin\jdev\appslibrt\svc.zip;C:\OAJDEV11510\jdevbin\BC4J\jlib\bc4jtester.jar;C:\OAJDEV11510\jdevbin\lib\xmlparserv2.jar;C:\OAJDEV11510\jdevbin\jlib\help4-nls.jar;C:\OAJDEV11510\jdevbin\jlib\help4.jar;C:\OAJDEV11510\jdevbin\jlib\share.jar;C:\OAJDEV11510\jdevbin\jlib\jewt4-nls.jar;C:\OAJDEV11510\jdevbin\jlib\jewt4.jar;C:\OAJDEV11510\jdevbin\jlib\oracle_ice5.jar

RT.JAR Files as mentioned in the Error log is not in the Directory ( you can verify)
Usually rt.jar is in
jdevbin\jdk\jre\lib.. Check the JDEV_USER_HOME variable and also the Libraries under Project Setting of JDEV , when you click on any specific lib it show you a path in the class path section..verify the same.
Thanks,
Sunit

I am running Mac OS 10.6.7 I cannot run a java based program from the net when parental controls are set the error is The error is Load: class installer.CheckVersion 13. class not found Help!

I am running Mac OS 10.6.7 I cannot run a java based program from the net when parental controls are set the error is The error is Load: class installer.CheckVersion 13. class not found

Then, talk to the person running the lab.

Class not found - from jsp sub-directories

Hello:
Main-Issue:
- I have some java-class files in the \<my-web-app>\web-inf\classes directory. These classes do not belong to any packages.
- I have some jsps in the \<my-web-app>\ directory and also in some sub-directories in the \<my-web-app>\ directory. Example: \<my-web-app>\test\index1.jsp.
- The jsps in the \<my-web-app>\ directory can invoke the classes in the \<my-web-app>\web-inf\classes directory with no issues. But, the jsps in the sub-directories CANNOT see the classes in the \<my-web-app>\web-inf\classes directory. I get a "class not found" error. (this is just in oc4j).
First of all, just a background to the issue:
- I am trying to port a web application from JRUN to OC4J.
- I want to do this with minimal changes to the existing code.
- The application has been running on JRUN for a while. I only see the above mentioned error (class not found) error when trying to run it on oc4j.
- As a test, I created my own test application to verify:
(-) I wrote a simple java class (test.class) with no package and placed it in the web-inf\classes directory
(-) I wrote a jsp file (index.jsp) to invoke test.class. I placed the jsp at the top-level directory of the web-app.
(-) I wrote another jsp file (index1.jsp) to invoke test.class as well. I placed that jsp file in a sub-directory in the top-level directory of the web-app.
(-) index.jsp worked without any problems. index1.jsp gave the "class not found" error.
(-) As another test, I then modified the class to be in a package (com.benny). I then changed the jsps to call "com.benny.test" rather than just "test". This time, both index.jsp and index1.jsp worked fine.
So, I guess my question is, do these classes have to be in a package? I am trying to avoid having to make a lot of changes to the app. If they do have to be in packages, then I have re-compile a lot of class files, add import statements to jsps, etc.
Any help/suggestion would be appreciated.
Thanks,
Benny

So, I guess my question is, do these classes have to be in a package?Answer: yes.
As of Java1.4, classes in the "unnamed" package were no longer accessible.
What version of java were you running with JRun?
What version are you running with OC4J?
Read all about it here:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4361575
If you have to repackage the classes, the IDE Eclipse has excellent support for refactoring, and wil let you put classes into packages with a minimum of fuss.

Error in beanshell - class not found in namespace

We use beanshell to evaluate business rule validations on our application. Below is the calling method...
private Object callBeanShell(final Object parameters, final String expression)
throws EvalError {
if (LogConstants.FINE_ENABLED) {
logger.log(Level.FINE, "Expression: " + expression);
beanShell.set("params", parameters);
Object result = null;
try {
result = beanShell.eval(expression);
} catch (Throwable ex) {
getErrorHandler().fatalError("Expression: " + expression, ex);
if (LogConstants.INFO_ENABLED) {
logger.log(Level.INFO, "Expression: " + expression);
logger.log(Level.INFO, "Result : " + (result == null ? "null" : result.toString()));
return result;
This has been working fine on the application for years, but we've suddenly started getting a problem with evaluations which are called from a SessionBean (via some reflection).
Every time we try and call a certain set of expressions they fail on a 'class xxx not found in namespace'. This happens both when the expression contains code like:
com.chubb.euz.SomeClass sc = new com.chubb.euz.SomeClass(); etc...
or
import com.chubb.euz.SomeClass; SomeClass sc = new SomeClass(); etc...
The strange thing is that when I remote debug it & look at the bsh Interpreter what I see is that it's NameSpace object has a table called ImportedClasses on it which before the eval() call contains just bsh.Interpreter and bsh.EvalError but after the eval() it then contains all of the classes I pull in as imports in the expression passed to it, yet it still manages to throw this damn 'class not found in namespace' error!
It still works whenever else it's called in the app (and this is only happening in our DEV environment). All I can think of now is that it's possibly something to do with the Thread that the beanshell is running on at this time, but that's just a guess as I know bugger all about Threads... I only think this because I can get the thing to work by stopping the processor which was built to run Events (EJB) generated in the app; resetting the Event's Task (regular class) to run again; then restarting the processor (not an option if this goes into PROD with the release!!!)
Unfortunately, re-factoring the validations we need to run at this point is not really an option, as this is all coming at the tail end of a new release & the amount of code changes & subsequent regression testing required would kill us.
This is on weblogic 8.1 - with the beanshell jar just embedded in the main application ear (I ran it with bsh.20b4.jar instead of the 1.3 version we were using but that has no effect).
Any ideas would be more than gratefully appreciated as this is doing my head in!!!

Hi,
Thanks for the reply.
I am trying to reverse SAP tables. Initially the Reversal process stuck at Set MetaData step. I stopped the session and restarted it then Set MetaData completed successfully but Set FlexFields give the error.
Any idea?
Regards,
Arsalan.

Retrive an object from session throw class not found at findClassOnDisk exception

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