Creating a Fake of a class with an inner class causes an IncompatibleClassChangeError #558
Description
Please provide the following information:
-
Version of JMockit that was used:
JMockit 1.38 (also tested against 1.39 and 1.41)
Gradle 4.8
JVM: 1.8.0_152 (Oracle Corporation 25.152-b16)
OS: Windows 7 6.1 amd64
TestNG: 6.8 -
Description of the problem:
Producing a Fake of a class with an inner class causes an IncompatibleClassChangeError, this is the actual error message:
java.lang.IncompatibleClassChangeError: reproducer.InnerClassesTests$Base and reproducer.InnerClassesTests$Base$InnerClass disagree on InnerClasses attribute
This failure cam into being at version 1.38, and still appears to exist in 1.41.
This appears to be a regression, as it previously worked on JMockit version 1.21.
Here's a quick reproducer:
package reproducer;
import mockit.Mock;
import mockit.MockUp;
import org.testng.annotations.Test;
/**
* Test to show that producing a Fake of a class with an inner class causes an IncompatibleClassChangeError.
* This failure came into being at version 1.38, and still appears to exist in 1.41.
*/
public class InnerClassesTests
{
public static class Base
{
void doSomething()
{
}
class InnerClass
{
}
}
@Test
public void testInnerClassFailure()
{
new MockUp<Base>()
{
@Mock
void doSomething()
{
// Just need to get the class processed
}
};
Base.InnerClass.class.getDeclaringClass(); // causes IncompatibleClassChangeError
}
}