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java.lang.NullPointerException: 	at java.util.TreeMap.compare(TreeMap.java:1188)	at java.util.TreeMap.put(TreeMap.java:531)	at org.springframework.migrationanalyzer.render.support.html.StandardHtmlResultTypeRenderer.createContentsModel(StandardHtmlResultTypeRenderer.java:99)	at org.springframework.migrationanalyzer.render.support.html.StandardHtmlResultTypeRenderer.renderResultTypeContents(StandardHtmlResultTypeRenderer.java:89)	at org.springframework.migrationanalyzer.render.support.html.StandardHtmlResultTypeRenderer.renderResultTypes(StandardHtmlResultTypeRenderer.java:68)	at org.springframework.migrationanalyzer.render.support.html.StandardHtmlResultTypeRendererTests.render(StandardHtmlResultTypeRendererTests.java:56)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:601)	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)	at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:55)	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:42)	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:75)	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:49)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:601)	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)	at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)	at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)	at $Proxy2.processTestClass(Unknown Source)	at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:103)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:601)	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)	at org.gradle.messaging.remote.internal.TypeCastDispatch.dispatch(TypeCastDispatch.java:30)	at org.gradle.messaging.remote.internal.WorkerProtocol.handleIncoming(WorkerProtocol.java:53)	at org.gradle.messaging.remote.internal.WorkerProtocol.handleIncoming(WorkerProtocol.java:31)	at org.gradle.messaging.remote.internal.ProtocolStack$ProtocolStage.handleIncoming(ProtocolStack.java:167)	at org.gradle.messaging.remote.internal.ProtocolStack$BottomStage.handleIncoming(ProtocolStack.java:277)	at org.gradle.messaging.remote.internal.ProtocolStack$BottomConnection$1.run(ProtocolStack.java:299)	at org.gradle.messaging.remote.internal.ProtocolStack$ExecuteRunnable.dispatch(ProtocolStack.java:120)	at org.gradle.messaging.remote.internal.ProtocolStack$ExecuteRunnable.dispatch(ProtocolStack.java:116)	at org.gradle.messaging.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132)	at org.gradle.messaging.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33)	at org.gradle.messaging.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72)	at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:66)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)	at java.lang.Thread.run(Thread.java:722)