Versions 1.10 and 1.11 @Mocked and Expectations Errors with IBM J9 VM

[EarthCitizen]

All scenarios below (JMockit 1.9, 1.10, 1.11) work flawlessly with Oracle JDK 1.6:

java -version

java version "1.6.0_45" Java(TM) SE Runtime Environment (build 1.6.0_45-b06) Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode)

IBM JDK Summary:

• 1.9 - works fine
• 1.10 - error
• 1.11 - error

Versions 1.9, 1.10 and 1.11 with IBM JDK detailed results:

java -version

java version "1.6.0" Java(TM) SE Runtime Environment (build pwi3260sr9fp1ifix-20110401_01(SR9 FP1+IZ95392+IZ95393+IZ97453)) IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 Windows 7 x86-32 jvmwi3260sr9-20110216_75791 (JIT enabled, AOT enabled) J9VM - 20110216_075791 JIT - r9_20101028_17488ifx4 GC - 20101027_AA) JCL - 20110401_02

I have the following code:

package test;

public class Foo {
    public String getValue() {
        return "FOO VALUE!";
    }
}

package test;

import mockit.Expectations;
import mockit.Mocked;

import org.junit.Test;

public class FooTest {

    @Mocked
    Foo foo;

    @Test
    public void test() {
        new Expectations() {{
            foo.getValue();
            result = "MOCK";
        }};
        System.out.println(foo.getValue());
    }
}

Works fine with JMockit 1.9.

Error with JMockit 1.10 (test does not run):

Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:611) at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:335) at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:350) Caused by: java.lang.ClassFormatError: JVMCFRE009 interface field must be public static and final; class=org/omg/CORBA/portable/IDLEntity, offset=198 at com.ibm.oti.vm.VM.findClassOrNull(Native Method) at com.ibm.oti.vm.BootstrapClassLoader.loadClass(BootstrapClassLoader.java:62) at com.ibm.oti.vm.VM.findClassOrNull(Native Method) at com.ibm.oti.vm.BootstrapClassLoader.loadClass(BootstrapClassLoader.java:62) at java.lang.ClassLoader.loadClass(ClassLoader.java:643) at java.lang.ClassLoader.loadClass(ClassLoader.java:645) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:358) at java.lang.ClassLoader.loadClass(ClassLoader.java:619) at mockit.internal.startup.MockingBridgeFields.createSyntheticFieldsInJREClassToHoldMockingBridges(MockingBridgeFields.java:30) at mockit.internal.startup.Startup.initialize(Startup.java:57) at mockit.internal.startup.Startup.premain(Startup.java:49) ... 6 more

Fatal error: processing of -javaagent failed

Error with JMockit 1.11 (test runs but unexpected error):

java.lang.IllegalStateException: Attempted to record invocation to mocked method from outside expectation block: test.Foo#getValue() on mock instance: test.Foo@60e860e8 at test.Foo.getValue(Foo.java) at test.FooTest$1.(FooTest.java:16) at test.FooTest.test(FooTest.java:15) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.lang.reflect.Method.invoke(Method.java:611) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

[rliesenfeld]

The IBM JDK 1.6 is not supported; you'll have to use IBM JDK 1.7, on which the test should work fine (it is for me, at least).

[EarthCitizen]

I have a growing frustration with the IBM JDK :wink: