Performance Analysis Tool for Java

1. I got the following error: java.lang.UnsupportedClassVersionError: com/ibm/jinwoo/performance/windows/Application (Unsupported major.minor version 49.0). What should I do?

The tool requires Java™ Run-time Environment 5.0 or above. If your default Java Run-time Environment is not 5.0 or above, please use the -vm option, which allows the tool to find the Java Run-time Environment. For example, try jpa -vm c:\java5\bin\java.exe if your Java 5.0 executable file is at c:\java5\bin\java.exe.

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2. The tool told me that no Java virtual machine was found. What should I do?

Follow the steps in FAQ No. 1 (above).

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3. Java heap space got exhausted. What should I do?

If you get Java heap exhaustion due to a large trace, please use the -vmargs -Xmx option in order to increase the Java heap. For example, jpa -vmargs -Xmx1024m will allocate 1 GB of Java heap to the tool environment.

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