method verification error : Java Glossary


method verification error
The compiler generates JVM (Java Virtual Machine) byte codes. Before these are executed, the byte codes are verified both to make sure the compiler did its job correctly and to block malicious attempts to crash or bypass the security of the JVM interpreter. The verification analyses the code flow to ensure for example that you don’t try to use an integer op code on a floating point operand and that you consume all the stack items you create. It detects any attempts to forge pointers out of integers. If you get a method verification error, chances are your compiler has a bug. The other cause is that the *.class file has been corrupted.

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