jMock

Mocking a static nested class causes a net.sf.cglib.core.CodeGenerationException to be thrown.

Details

  • Type: Bug Bug
  • Status: Open Open
  • Priority: Major Major
  • Resolution: Unresolved
  • Affects Version/s: 1.2.0
  • Fix Version/s: None
  • Component/s: JMock 1.x.x Library
  • Labels:
    None
  • Number of attachments :
    0

Description

In some code that I have inherited I have a class with a static nested class. In the past (jMock 1.1.0) I was able to successfully mock this static nested class. After upgrading to jMock 1.2.0, this no longer works. I end up getting the following exception:
net.sf.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->tried to access method org.jmock.codegen.com.mycompany.core.util.DataPage$DataPageDefinition$$EnhancerByCGLIB$$3417fee6.CGLIB$setPageNumber$6(I)V from class org.jmock.codegen.org.jmock.codegen.com.mycompany.core.util.DataPage$DataPageDefinition$$EnhancerByCGLIB$$3417fee6$$FastClassByCGLIB$$e9f65fd5
at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:235)
at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:220)
at net.sf.cglib.proxy.Enhancer.createUsingReflection(Enhancer.java:636)
at net.sf.cglib.proxy.Enhancer.firstInstance(Enhancer.java:538)
at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:225)
at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:304)
at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:63)
at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:46)
at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:35)
at org.jmock.cglib.MockObjectTestCase.newCoreMock(MockObjectTestCase.java:33)
at org.jmock.MockObjectTestCase.mock(MockObjectTestCase.java:67)
at org.jmock.MockObjectTestCase.mock(MockObjectTestCase.java:55)
at com.mycompany.core.persistence.hbm.HBMBaseDAOTest.testLimitResultSet(HBMBaseDAOTest.java:117)
Caused by: java.lang.IllegalAccessError: tried to access method org.jmock.codegen.com.mycompany.core.util.DataPage$DataPageDefinition$$EnhancerByCGLIB$$3417fee6.CGLIB$setPageNumber$6(I)V from class org.jmock.codegen.org.jmock.codegen.com.mycompany.core.util.DataPage$DataPageDefinition$$EnhancerByCGLIB$$3417fee6$$FastClassByCGLIB$$e9f65fd5
at org.jmock.codegen.org.jmock.codegen.com.mycompany.core.util.DataPage$DataPageDefinition$$EnhancerByCGLIB$$3417fee6$$FastClassByCGLIB$$e9f65fd5.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
at org.jmock.cglib.CGLIBCoreMock.intercept(CGLIBCoreMock.java:79)
at org.jmock.codegen.com.mycompany.core.util.DataPage$DataPageDefinition$$EnhancerByCGLIB$$3417fee6.setPageNumber(<generated>)
at com.mycompany.core.util.DataPage$DataPageDefinition.<init>(DataPage.java:280)
at com.mycompany.core.util.DataPage$DataPageDefinition.<init>(DataPage.java:267)
at org.jmock.codegen.com.mycompany.core.util.DataPage$DataPageDefinition$$EnhancerByCGLIB$$3417fee6.<init>(<generated>)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:228)
... 58 more

Research led me to the following:
http://www.gg3721.com/list/50/44427.html
and the followup
http://www.gg3721.com/list/50/44774.html

Activity

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Ryan C. Payne added a comment -

Is there any workaround to get this to work again, short of rolling back to jMock 1.1.0 or breaking out the static nested class into it's own file?

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Ryan C. Payne added a comment - Is there any workaround to get this to work again, short of rolling back to jMock 1.1.0 or breaking out the static nested class into it's own file?
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Nat Pryce added a comment -

Is the static nested class public?

If not, can you work around the problem by making it public?

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Nat Pryce added a comment - Is the static nested class public? If not, can you work around the problem by making it public?
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Ryan C. Payne added a comment -

Yes, the static nested class is indeed public.

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Ryan C. Payne added a comment - Yes, the static nested class is indeed public.
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Nat Pryce added a comment -

If you could give us a small, self-contained JUnit test that demonstrates the problem, that would be a great help in tracking this down.

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Nat Pryce added a comment - If you could give us a small, self-contained JUnit test that demonstrates the problem, that would be a great help in tracking this down.
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Ryan C. Payne added a comment -

Sure thing. I will whip that up this afternoon and attach it to the JIRA.

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Ryan C. Payne added a comment - Sure thing. I will whip that up this afternoon and attach it to the JIRA.
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Nat Pryce added a comment -

Great! Thanks.

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Nat Pryce added a comment - Great! Thanks.
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Ryan Hoegg added a comment -

Did you ever make the small, self-contained JUnit test?

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Ryan Hoegg added a comment - Did you ever make the small, self-contained JUnit test?
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Duncan Mac-Vicar P. added a comment -

We are seeing this problem when building a rpm package of jmock-1.2.0. The jmock testsuite fails for ppc and s390, which means IBM's JVM. I could reproduce it then on i586 by forcing IBM Java to be installed instead of openJDK.

The testsuite fails on jmock-1.2.0/src/atest/jmock/cglib/MockConcreteClassAcceptanceTest.java

[junit] Testsuite: atest.jmock.cglib.ErrorDetectionAcceptanceTest
[junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 0.014 sec
[junit]
[junit] Testsuite: atest.jmock.cglib.MockConcreteClassAcceptanceTest
[junit] Tests run: 4, Failures: 0, Errors: 1, Time elapsed: 0.275 sec
[junit]
[junit] Testcase: testCanMockClassesWithComplexConstructors(atest.jmock.cglib.MockConcreteClassAcceptanceTest): Caused an ERROR
[junit] java.lang.IllegalAccessError-->org/jmock/codegen/atest/jmock/cglib/MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.CGLIB$mockedMethod$0()Ljava/lang/String;
[junit] net.sf.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->org/jmock/codegen/atest/jmock/cglib/MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.CGLIB$mockedMethod$0()Ljava/lang/String;
[junit] at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:235)
[junit] at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:220)
[junit] at net.sf.cglib.proxy.Enhancer.createUsingReflection(Enhancer.java:636)
[junit] at net.sf.cglib.proxy.Enhancer.firstInstance(Enhancer.java:538)
[junit] at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:225)
[junit] at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
[junit] at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:304)
[junit] at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:63)
[junit] at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:46)
[junit] at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:35)
[junit] at org.jmock.cglib.MockObjectTestCase.newCoreMock(MockObjectTestCase.java:33)
[junit] at org.jmock.MockObjectTestCase.mock(MockObjectTestCase.java:67)
[junit] at atest.jmock.cglib.MockConcreteClassAcceptanceTest.testCanMockClassesWithComplexConstructors(MockConcreteClassAcceptanceTest.java:71)
[junit] at org.jmock.core.VerifyingTestCase.runBare(VerifyingTestCase.java:39)
[junit] Caused by: java.lang.IllegalAccessError: org/jmock/codegen/atest/jmock/cglib/MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.CGLIB$mockedMethod$0()Ljava/lang/String;
[junit] at org.jmock.codegen.org.jmock.codegen.atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146$$FastClassByCGLIB$$64c65b38.invoke(<generated>)
[junit] at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
[junit] at org.jmock.cglib.CGLIBCoreMock.intercept(CGLIBCoreMock.java:79)
[junit] at org.jmock.codegen.atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.mockedMethod(<generated>)
[junit] at atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor.<init>(MockConcreteClassAcceptanceTest.java:63)
[junit] at org.jmock.codegen.atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.<init>(<generated>)
[junit] at java.lang.reflect.Constructor.newInstance(Constructor.java:527)
[junit] at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:228)
[junit]
[junit]

Show
Duncan Mac-Vicar P. added a comment - We are seeing this problem when building a rpm package of jmock-1.2.0. The jmock testsuite fails for ppc and s390, which means IBM's JVM. I could reproduce it then on i586 by forcing IBM Java to be installed instead of openJDK. The testsuite fails on jmock-1.2.0/src/atest/jmock/cglib/MockConcreteClassAcceptanceTest.java [junit] Testsuite: atest.jmock.cglib.ErrorDetectionAcceptanceTest [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 0.014 sec [junit] [junit] Testsuite: atest.jmock.cglib.MockConcreteClassAcceptanceTest [junit] Tests run: 4, Failures: 0, Errors: 1, Time elapsed: 0.275 sec [junit] [junit] Testcase: testCanMockClassesWithComplexConstructors(atest.jmock.cglib.MockConcreteClassAcceptanceTest): Caused an ERROR [junit] java.lang.IllegalAccessError-->org/jmock/codegen/atest/jmock/cglib/MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.CGLIB$mockedMethod$0()Ljava/lang/String; [junit] net.sf.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->org/jmock/codegen/atest/jmock/cglib/MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.CGLIB$mockedMethod$0()Ljava/lang/String; [junit] at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:235) [junit] at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:220) [junit] at net.sf.cglib.proxy.Enhancer.createUsingReflection(Enhancer.java:636) [junit] at net.sf.cglib.proxy.Enhancer.firstInstance(Enhancer.java:538) [junit] at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:225) [junit] at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377) [junit] at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:304) [junit] at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:63) [junit] at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:46) [junit] at org.jmock.cglib.CGLIBCoreMock.<init>(CGLIBCoreMock.java:35) [junit] at org.jmock.cglib.MockObjectTestCase.newCoreMock(MockObjectTestCase.java:33) [junit] at org.jmock.MockObjectTestCase.mock(MockObjectTestCase.java:67) [junit] at atest.jmock.cglib.MockConcreteClassAcceptanceTest.testCanMockClassesWithComplexConstructors(MockConcreteClassAcceptanceTest.java:71) [junit] at org.jmock.core.VerifyingTestCase.runBare(VerifyingTestCase.java:39) [junit] Caused by: java.lang.IllegalAccessError: org/jmock/codegen/atest/jmock/cglib/MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.CGLIB$mockedMethod$0()Ljava/lang/String; [junit] at org.jmock.codegen.org.jmock.codegen.atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146$$FastClassByCGLIB$$64c65b38.invoke(<generated>) [junit] at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167) [junit] at org.jmock.cglib.CGLIBCoreMock.intercept(CGLIBCoreMock.java:79) [junit] at org.jmock.codegen.atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.mockedMethod(<generated>) [junit] at atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor.<init>(MockConcreteClassAcceptanceTest.java:63) [junit] at org.jmock.codegen.atest.jmock.cglib.MockConcreteClassAcceptanceTest$ClassWithComplexConstructor$$EnhancerByCGLIB$$5b092146.<init>(<generated>) [junit] at java.lang.reflect.Constructor.newInstance(Constructor.java:527) [junit] at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:228) [junit] [junit]

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  • Created:
    Updated:
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