IBM User Guide for Java V7 on Windows > Troubleshooting and support > Using diagnostic tools > Shared classes diagnostic data

Debugging problems with shared classes

The following sections describe some of the situations you might encounter with shared classes and also the tools that are available to assist in diagnosing problems.

• Using shared classes trace
  Use shared classes trace output only for debugging internal problems or for a detailed trace of activity in the shared classes code.
• Why classes in the cache might not be found or stored
  This quick guide helps you to diagnose why classes might not be being found or stored in the cache as expected.
• Dealing with initialization problems
  Shared classes initialization requires a number of operations to succeed. A failure might have many potential causes, and it is difficult to provide detailed message information following an initialization failure. Some common reasons for failure are listed here.
• Dealing with verification problems
  Verification problems (typically seen as java.lang.VerifyErrors) are potentially caused by the cache returning incorrect class bytes.
• Dealing with cache problems
  

Parent: Shared classes diagnostic data

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