help me to solve the error---it's urgent

hi everybody

my application is deployed on the weblogic 9.0. actually i migrated from
weblogic 7.2 to weblogic 9.0 . I am using the VB DLL through which i am sending
the request to the servlet.
When i am pressing the "Color" button in VBDLL to retrieve the color
information, server takes the long time nearly 10-12 minutes to return back the
color information but it throws the following error

<Error> <WebLogicServer> <BEA-000337> <[STUCK]
ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)' has been
busy for "621" seconds working on the request "Http Request:
/sales/appFindSize.jsp", which is more than the configured time
(StuckThreadMaxTime) of "600" seconds. Stack trace:
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Object.java:474)
javelin.client.JobWaiter.blockUntilFinished(JobWaiter.java:45)
javelin.client.ClientUtilsImpl.build(ClientUtilsImpl.java:838)
weblogic.servlet.jsp.JavelinxJSPStub.compilePage(JavelinxJSPStub.java:244)
weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:200)
weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:164)
weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:224)
weblogic.servlet.internal.ServletStubImpl.onAddToMapException(ServletStubImpl.ja
va:383)
weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:298)
weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:165)
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAp
pServletContext.java:3022)
weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.ja
va:321)
weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletConte
xt.java:1925)
weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java
:1848)
weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1288)
weblogic.work.ExecuteThread.execute(ExecuteThread.java:207)
weblogic.work.ExecuteThread.run(ExecuteThread.java:179)

please help me to solve this error it is urgent.

Thanks in advance

Regards