ClassFormatError : JUnit test class run causes PC invalid error before invoking @Test method

Question

The error that I get when running the test class

java.lang.ClassFormatError: JVMCFRE013 local variable PC length invalid; class=com/../MyClass, offset=42431
    at java.lang.ClassLoader.defineClass(ClassLoader.java:265)

This occurs specifically when I add MyClass.class to the @PrepareForTest above the class. When I remove the same, the error goes. I don't think its an eclpise/java issue as I've tried switching to Java 1.8 to 1.6. Kindly help me out here.

@RunWith(PowerMockRunner.class)
@PowerMockIgnore("javax.*")
@PrepareOnlyThisForTest({x.class,MyClass.class })
@SuppressStaticInitializationFor("com.xx")
public class MyClassTest {

This is the test class I execute which leads to the error.

Possible duplicate of [java.lang.ClassFormatError: Invalid method Code length while using PowerMock](https://stackoverflow.com/questions/36775972/java-lang-classformaterror-invalid-method-code-length-while-using-powermock) — Stultuske, Feb 12 '18 at 13:48
The OP there had mentioned, " error seem to occur due to lengthy method in my class file". which is wrong in my case. When I remove the same class from the @PrepareForTest, the error is dissapearing — Alan Pallath, Feb 12 '18 at 13:51
"local variable PC length invalid;" you assume this has nothing to do with the length? — Stultuske, Feb 12 '18 at 13:55
Yea, you've got a point. I'll try to decrease the length even further. Any other way around for resolving it? — Alan Pallath, Feb 12 '18 at 13:56
never used PowerMock, maybe those who use it more often are of more service. — Stultuske, Feb 12 '18 at 13:58
Will it be the length of the test method or the class method? — Alan Pallath, Feb 12 '18 at 13:59

score 0 · Answer 1 · answered Feb 13 '18 at 06:38

0

The problem was not related to the length of the main class or the test class. The JavaAssist version that was being used was relatively old one. javassist-3.11.x.jar I updated that to the latest one, and the problem was resolved.

answered Feb 13 '18 at 06:38

Alan Pallath

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ClassFormatError : JUnit test class run causes PC invalid error before invoking @Test method

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