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STAMP-project / EvoCrash-demo

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Error when running stack trace for XWIKI-14711 with frame level 4 #6

Closed vmassol closed 6 years ago

vmassol commented 6 years ago

context:

stacktrace:

2017-09-20 13:30:48,765 [http://localhost:8080/xwiki/bin/edit/XWiki/XWikiServerTest/?xpage=editobject&xaction=addObject&className=WikiManager.WikiTemplateClass] ERROR .o.i.DefaultObservationManager - Failed to send event [org.xwiki.bridge.event.DocumentUpdatedEvent@8b696558] to listener [org.xwiki.wiki.internal.descriptor.listener.WikiDescriptorListener@3d4d06c4] 
java.lang.NullPointerException: Null keys are not supported!
    at org.infinispan.cache.impl.CacheImpl.assertKeyNotNull(CacheImpl.java:227)
    at org.infinispan.cache.impl.CacheImpl.remove(CacheImpl.java:550)
    at org.infinispan.cache.impl.CacheImpl.remove(CacheImpl.java:546)
    at org.xwiki.cache.infinispan.internal.InfinispanCache.remove(InfinispanCache.java:85)
    at org.xwiki.wiki.internal.manager.WikiDescriptorCache.remove(WikiDescriptorCache.java:120)
    at org.xwiki.wiki.internal.descriptor.listener.WikiDescriptorListener.removeExistingDescriptor(WikiDescriptorListener.java:114)
    at org.xwiki.wiki.internal.descriptor.listener.WikiDescriptorListener.onEvent(WikiDescriptorListener.java:92)
    at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:304)
    at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:269)
    at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1777)
    at com.xpn.xwiki.api.Document.saveDocument(Document.java:2509)
    at com.xpn.xwiki.api.Document.save(Document.java:2395)
    at com.xpn.xwiki.api.Document.save(Document.java:2384)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
    at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
    at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
    at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
    at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)
    at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
    at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
    at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
    at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
    at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)
    at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
    at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
    at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
    at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
    at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
    at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:361)
    at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:806)
    at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:682)
    at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:657)
    at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:85)
    at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:656)
    at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:635)
    at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:621)
    at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
    at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2120)
    at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:180)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:463)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:210)
    at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
    at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
    at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
    at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1650)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1629)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.Server.handle(Server.java:564)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:317)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110)
    at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
    at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128)
    at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:199)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
    at java.lang.Thread.run(Thread.java:748)
2017-09-20 13:30:50,819 [http://localhost:8080/xwiki/bin/save/XWiki/XWikiServerTest/WebHome] ERROR .o.i.DefaultObservationManager - Failed to send event [org.xwiki.bridge.event.DocumentUpdatedEvent@8b696558] to listener [org.xwiki.wiki.internal.descriptor.listener.WikiDescriptorListener@3d4d06c4] 
java.lang.NullPointerException: Null keys are not supported!
    at org.infinispan.cache.impl.CacheImpl.assertKeyNotNull(CacheImpl.java:227)
    at org.infinispan.cache.impl.CacheImpl.remove(CacheImpl.java:550)
    at org.infinispan.cache.impl.CacheImpl.remove(CacheImpl.java:546)
    at org.xwiki.cache.infinispan.internal.InfinispanCache.remove(InfinispanCache.java:85)
    at org.xwiki.wiki.internal.manager.WikiDescriptorCache.remove(WikiDescriptorCache.java:120)
    at org.xwiki.wiki.internal.descriptor.listener.WikiDescriptorListener.removeExistingDescriptor(WikiDescriptorListener.java:114)
    at org.xwiki.wiki.internal.descriptor.listener.WikiDescriptorListener.onEvent(WikiDescriptorListener.java:92)
    at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:304)
    at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:269)
    at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1777)
    at com.xpn.xwiki.web.SaveAction.save(SaveAction.java:190)
    at com.xpn.xwiki.web.SaveAction.action(SaveAction.java:232)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:446)
    at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:210)
    at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
    at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
    at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
    at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1650)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:566)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:203)
    at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:73)
    at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:102)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:124)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
    at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1629)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.Server.handle(Server.java:564)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:317)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110)
    at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
    at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128)
    at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:199)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:673)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:591)
    at java.lang.Thread.run(Thread.java:748)

Results:

[…]
lineFitness: 0.0
currentFitness: 0.4411764705882353

lineFitness: 0.0
currentFitness: 0.4411764705882353

lineFitness: 0.0
currentFitness: 0.4411764705882353

Best individual has fitness: 0.4411764705882353
Worst individual has fitness: 4.5

* EvoCrash: the generated stack trace: 

org.xwiki.wiki.internal.manager.WikiDescriptorCache.remove(WikiDescriptorCache.java:120)
sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.evosuite.testcase.statements.MethodStatement$1.execute(MethodStatement.java:257)
org.evosuite.testcase.statements.AbstractStatement.exceptionHandler(AbstractStatement.java:169)
org.evosuite.testcase.statements.MethodStatement.execute(MethodStatement.java:220)
org.evosuite.testcase.execution.TestRunnable.executeStatements(TestRunnable.java:307)
org.evosuite.testcase.execution.TestRunnable.call(TestRunnable.java:213)
org.evosuite.testcase.execution.TestRunnable.call(TestRunnable.java:55)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:748)

* EvoCrash: the generated test case: 
CacheManager cacheManager0 = mock(CacheManager.class, new ViolatedAssumptionAnswer());
Class<MemberCandidacy.CandidateType> class0 = MemberCandidacy.CandidateType.class;
Class<MemberCandidacy.CandidateType> class1 = MemberCandidacy.CandidateType.class;
Class<MemberCandidacy.CandidateType> class2 = MemberCandidacy.CandidateType.class;
Class<MemberCandidacy.CandidateType> class3 = MemberCandidacy.CandidateType.class;
Object object0 = new Object();
String string0 = "";
Injector.inject(string0, (Class<?>) class0, string0, (Object) class3);
Class<String> class4 = String.class;
Injector.validateBean(class2, (Class<?>) class3);
DefaultWikiDescriptor defaultWikiDescriptor0 = null;
String string1 = "";
String string2 = null;
WikiDescriptorCache wikiDescriptorCache0 = new WikiDescriptorCache();
Injector.inject(wikiDescriptorCache0, (Class<?>) WikiDescriptorCache.class, "cacheManager", (Object) cacheManager0);
Injector.validateBean(wikiDescriptorCache0, (Class<?>) WikiDescriptorCache.class);
Class<Integer> class5 = Integer.class;
Injector.inject(string2, (Class<?>) class5, string1, (Object) defaultWikiDescriptor0);
Class<MemberCandidacy.Status> class6 = MemberCandidacy.Status.class;
Injector.validateBean(class6, (Class<?>) class0);
int int0 = (-2618);
Class<MemberCandidacy.CandidateType> class7 = MemberCandidacy.CandidateType.class;
String string3 = "";
Class<Locale.LanguageRange> class8 = Locale.LanguageRange.class;
Class<Locale.LanguageRange> class9 = Locale.LanguageRange.class;
Class<MemberCandidacy.CandidateType> class10 = MemberCandidacy.CandidateType.class;
Class<MemberCandidacy.CandidateType> class11 = MemberCandidacy.CandidateType.class;
Class<Integer> class12 = Integer.class;
Class<Object> class13 = Object.class;
String string4 = "bN@;&Y&+fw";
Injector.inject(class8, (Class<?>) class13, string4, (Object) wikiDescriptorCache0);
Class<MemberCandidacy.Status> class14 = MemberCandidacy.Status.class;
Class<DefaultWikiDescriptor> class15 = DefaultWikiDescriptor.class;
Injector.validateBean(class4, (Class<?>) class12);
wikiDescriptorCache0.remove(defaultWikiDescriptor0);
String string5 = "\"\"`aV.S.}SuTRFW$ZP";
wikiDescriptorCache0.addFromId(string5, defaultWikiDescriptor0);
wikiDescriptorCache0.getFromId(string0);

GGA was done in 601!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

! Budget exceeded
! Unable to cover goal 0 org.crash.client.crashcoverage.CrashCoverageTestFitness@2a6384de
* Search finished after 605s, 604 statements, best individual has fitness 0.0
* Covered 0/1 goals
* Target exception was set to: java.lang.NullPointerException
* EvoCrash: The target call is either public or protected!
The retrived call(s) to inject in the tests are:
remove
[MASTER] 10:29:54.219 [logback-1] WARN  TimeController - Phase INITIALIZATION lasted too long, 497 seconds more than allowed.
* Target exception was set to: java.lang.NullPointerException
* EvoCrash: The target call is either public or protected!
The retrived call(s) to inject in the tests are:
remove
* Minimizing test suite
* Going to analyze the coverage criteria
* Coverage analysis for criterion CRASH
* Target exception was set to: java.lang.NullPointerException
* EvoCrash: The target call is either public or protected!
The retrived call(s) to inject in the tests are:
remove
* Coverage of criterion CRASH: 0%
* Total number of goals: 1
* Number of covered goals: 0
* Generated 0 tests with total length 0
* Resulting test suite's coverage: 0%
* Generating assertions
* Resulting test suite's mutation score: 0%
* Compiling and checking tests
* Permissions denied during test execution: 
 - java.lang.RuntimePermission: 
        writeFileDescriptor: 1
* Writing JUnit test case 'WikiDescriptorCache_ESTest' to GGA-tests
* Done!
pderakhshanfar commented 6 years ago

As we can see, the best value for the fitness function is 0.4 for this execution, and it could not achieve to fitness function 0 (complete crash replication). The closest generated stack trace has only frame level 5 (org.xwiki.wiki.internal.manager.WikiDescriptorCache.remove(WikiDescriptorCache.java:120)). EvoCrash may achieve fitness function 0 if we give more search budget (more than 10 minutes). The other explanation is that EvoCrash got stock in local optima, and it could not have any progress after getting to 0.4 fitness function. In this situation, we should improve the EvoCrash search process by updating the evolving operators and fitness function.