java.lang.IllegalStateException: Failed to transform class with name com.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX$ReadSets. Reason: null
at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:219)
at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:147)
at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:67)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114)
at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125)
at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
at sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:390)
at sun.reflect.annotation.AnnotationParser.parseClassValue(AnnotationParser.java:371)
at sun.reflect.annotation.AnnotationParser.parseClassArray(AnnotationParser.java:673)
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:480)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:306)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:241)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:88)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:70)
at java.lang.Class.initAnnotationsIfNecessary(Class.java:3089)
at java.lang.Class.getAnnotations(Class.java:3069)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.classAnnotations(PowerMockJUnit44RunnerDelegateImpl.java:163)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.getDescription(PowerMockJUnit44RunnerDelegateImpl.java:155)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.getDescription(JUnit4TestSuiteChunkerImpl.java:171)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.getDescription(AbstractCommonPowerMockRunner.java:47)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestClassReference.sendTree(JUnit4TestClassReference.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.sendTrees(RemoteTestRunner.java:476)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:464)
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)
Caused by: java.lang.NullPointerException
at javassist.compiler.MemberResolver.lookupMethod(MemberResolver.java:110)
at javassist.compiler.MemberResolver.lookupMethod(MemberResolver.java:96)
at javassist.compiler.TypeChecker.atMethodCallCore(TypeChecker.java:704)
at javassist.compiler.TypeChecker.atCallExpr(TypeChecker.java:681)
at javassist.compiler.JvstTypeChecker.atCallExpr(JvstTypeChecker.java:156)
at javassist.compiler.ast.CallExpr.accept(CallExpr.java:45)
at javassist.compiler.Javac$1.setReturnType(Javac.java:449)
at javassist.compiler.JvstTypeChecker.atCallExpr(JvstTypeChecker.java:146)
at javassist.compiler.ast.CallExpr.accept(CallExpr.java:45)
at javassist.compiler.TypeChecker.atVariableAssign(TypeChecker.java:248)
at javassist.compiler.TypeChecker.atAssignExpr(TypeChecker.java:217)
at javassist.compiler.ast.AssignExpr.accept(AssignExpr.java:38)
at javassist.compiler.CodeGen.doTypeCheck(CodeGen.java:235)
at javassist.compiler.CodeGen.atStmnt(CodeGen.java:323)
at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
at javassist.compiler.CodeGen.atStmnt(CodeGen.java:344)
at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
at javassist.compiler.CodeGen.atIfStmnt(CodeGen.java:384)
at javassist.compiler.CodeGen.atStmnt(CodeGen.java:348)
at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
at javassist.compiler.CodeGen.atStmnt(CodeGen.java:344)
at javassist.compiler.ast.Stmnt.accept(Stmnt.java:49)
at javassist.compiler.Javac.compileStmnt(Javac.java:558)
at javassist.expr.MethodCall.replace(MethodCall.java:233)
at org.powermock.core.transformers.impl.MainMockTransformer$PowerMockExpressionEditor.edit(MainMockTransformer.java:299)
at javassist.expr.ExprEditor.loopBody(ExprEditor.java:178)
at javassist.expr.ExprEditor.doit(ExprEditor.java:90)
at javassist.CtClassType.instrument(CtClassType.java:1224)
at org.powermock.core.transformers.impl.MainMockTransformer.transform(MainMockTransformer.java:75)
at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:215)
... 28 more
This class contains the static getInstance method (which I want to make fun of) to provide a singleton object and a pair of Enum classes declared as public static (one of them called ReadSets is considered in the exception). The following shows what the class looks like.
I am trying to mock this class in my testing method using PowerMockito.mock and Powermockito.MockStatic, and this throws an exception.
Any clues on how to fix this?
public class XXX extends YYY {
private volatile static XXX s_instance;
public static XXX getInstance() {
if (s_instance == null)
synchronized (XXX.class) {
if (s_instance == null)
s_instance = new XXX();
}
return s_instance;
}
public static enum ReadSets {
ANY(1), ALL(2);
int val;
public int getVal() {
return val;
}
private ReadSets(int v) {
val = v;
}
}
public static enum UpdateSets {
ANY(1), ALL(2);
int val;
private UpdateSets(int v) {
val = v;
}
}
}
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