Before proceeding in problem determination, there are some initial questions to be answered.
Have you changed anything recently?
If you have changed, added, or removed software or hardware just before the problem occurred, back out the change and see if the problem persists.
What else is running on the workstation?
If you have other software, including a firewall, try switching it off to see if the problem persists.
Is the problem reproducible on the same workstation?
Knowing that this defect occurs every time the described steps are taken is helpful because it indicates a straightforward programming error. If the problem occurs at alternate times, or occasionally, thread interaction and timing problems in general are much more likely.
Is the …show more content…
A difference in hardware might make the problem disappear; for example, the number of processors. Also, differences in the operating system and application software installed might make a difference to the JVM. For example, the visibility of a race condition in the JVM or a user Java™ application might be influenced by the speed at which certain operations are performed by the system.
Does the problem occur on multiple platforms?
If the problem occurs only on one platform, it might be related to a platform-specific part of the JVM. Alternatively, it might be related to local code used inside a user application. If the problem occurs on multiple platforms, the problem might be related to the user Java application. Alternatively, it might be related to a cross-platform part of the JVM such as the Java Swing API. Some problems might be evident only on particular hardware; for example, Intel 32 bit architecture. A problem on particular hardware might indicate a JIT problem.
Can you reproduce the problem with the latest Service Refresh?
The problem might also have been fixed in a recent service refresh. Make sure that you are using the latest service refresh for your environment. Check the latest details on