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POInvoking Java from C++: how to catch/detect a fatal JVM error?
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copied!<p>I'm developing a C++ program (Win32, MS Visual Studio 2008) which creates a Java VM via JNI as outlined <a href="http://docs.oracle.com/javase/6/docs/technotes/guides/jni/spec/invocation.html#wp16334" rel="nofollow">here</a>. It has been working fine for a long time, with both Java 6 and Java 7.</p> <p>Today I have installed a new version of JRE; something went wrong in the installer, and the JRE become corrupt. I noticed that my C++ program doesn't start and doesn't issue any warning messages. Debugging the program showed that it runs successfully until the <code>JNI_CreateJavaVM</code> call; but calling <code>JNI_CreateJavaVM</code> causes the program to instantly terminate. No return values, no error messages, nothing.</p> <p>Yes, I know that I simply have to reinstall JRE. But nevertheless I'd like my C++ program to be prepared to such situation. If it's unable to create a Java VM, it should show a message "Please reinstall JRE". But I don't have a chance to show that message because the whole program is terminating.</p> <p>Is there a way to detect such type of errors in JRE, or more generally, in a third-party library? I tried using C++ <code>try/catch</code> constructs, I tried using the <a href="http://msdn.microsoft.com/en-us/library/xdkz3x12%28v=vs.71%29.aspx" rel="nofollow">signal</a> function - nothing helps; the program disappears without calling any catch or signal handlers.</p> <p>Is there a way to detect such JRE crash? Or: is there a way to reliably detect a crash or termination inside a third-party library?</p>

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