HTTP Status 500 – Internal Server Error


Type Exception Report

Message java.lang.NullPointerException

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: java.lang.NullPointerException
	org.apache.shiro.web.servlet.AdviceFilter.cleanup(AdviceFilter.java:196)
	org.apache.shiro.web.filter.authc.AuthenticatingFilter.cleanup(AuthenticatingFilter.java:155)
	org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:148)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
	org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
	org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)

Root Cause

java.lang.NullPointerException
	de.iai.ilcd.util.DependenciesUtil.lambda$getDependencyCluster$4(DependenciesUtil.java:106)
	java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
	java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621)
	java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
	de.iai.ilcd.util.DependenciesUtil.getDependencyCluster(DependenciesUtil.java:114)
	de.iai.ilcd.util.DependenciesUtil.getDependencyCluster(DependenciesUtil.java:158)
	de.iai.ilcd.webgui.controller.admin.export.DataExportController.writeDependencies(DataExportController.java:513)
	de.iai.ilcd.rest.ProcessResource.getDependencies(ProcessResource.java:485)
	de.iai.ilcd.rest.ProcessResource$$FastClassBySpringCGLIB$$63b07243.invoke(<generated>)
	org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	org.springframework.aop.framework.CglibAopProxy.invokeMethod(CglibAopProxy.java:386)
	org.springframework.aop.framework.CglibAopProxy.access$000(CglibAopProxy.java:85)
	org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:704)
	de.iai.ilcd.rest.ProcessResource$$EnhancerBySpringCGLIB$$2bd19534.getDependencies(<generated>)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.base/java.lang.reflect.Method.invoke(Method.java:566)
	com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
	com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)
	com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
	com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
	com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
	com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
	com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
	com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
	com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
	com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
	com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
	com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
	com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
	com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:765)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
	org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
	org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/8.5.85