Java.lang.nullpointerexception Tomcat Error
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Http Status 500 - Java.lang.nullpointerexception In Netbeans
programmers, just like you, helping each other. Join them; it only takes a minute: Sign up java.lang.NullPointerException from org.apache.catalina.loader.WebappClassLoaderBase.loadClass up vote 0 down vote favorite What causes this? This appears to be a very comon error with myriad causes. HTTP Status 500 - type Exception report message description The server encountered an internal error that prevented it from fulfilling this request. exception java.lang.NullPointerException java.util.concurrent.ConcurrentHashMap.putVal(Unknown Source) java.util.concurrent.ConcurrentHashMap.putIfAbsent(Unknown Source) java.lang.ClassLoader.getClassLoadingLock(Unknown Source) org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1149) org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1116) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:510) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1110) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:785) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) note The full stack trace of the root cause is available in the Apache Tomcat/8.5.3 logs. Here are the includes: import java.uti
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How To Solve Http Status 500 Error In Tomcat
have Meta Discuss the workings and policies of this site http status 500 - java.lang.nullpointerexception in struts2 About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting nullpointerexception in tomcat server ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 http://stackoverflow.com/questions/38517714/java-lang-nullpointerexception-from-org-apache-catalina-loader-webappclassloader million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Tomcat 7 java.lang.NullPointerException when wrong credential entered using Active Directory authentification up vote 1 down vote favorite I am trying to use Active Directory to authenticate users on my web application. This is now working correctly if I http://stackoverflow.com/questions/27858129/tomcat-7-java-lang-nullpointerexception-when-wrong-credential-entered-using-acti use the right credentials, but If I fail to input the correct credentials, I get the following error [1] and no further attempts is allowed. I did not have this issue when I was only using the UserDatabaseRealm. Edit: After upgrading to Tomcat 8.0.15 as suggested by @kotacc, I am still getting an error (see [5] below) when entering the wrong credentials. end of Edit My server.xml is in [2] and my web.xml in [3] My configuration details are in [4]. Any idea of what is wrong? Could anyone point me to the right documentation for this? regards Ben [2] here is the relevant part from my server.xml:
Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other http status all forums Forum: Struts java.lang.NullPointerException at the starting of tomcat 6.0 Anurag Kadam Greenhorn Posts: 3 posted 4 years ago Hi, I am trying http status 500 to develope a simple login app. using struts. But I am getting following error while starting the tomcat 6.0 in Eclipse java.lang.NullPointerException at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:705) at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:670) at org.apache.struts.action.ActionServlet.init(ActionServlet.java:329) at javax.servlet.GenericServlet.init(GenericServlet.java:212) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4045) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4351) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:566) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Jan 4, 20
Sign in Pricing Blog Support Search GitHub This repository Watch 158 Star 1,352 Fork 266 spring-projects/spring-loaded Code Issues 99 Pull requests 9 Projects 0 Wiki Pulse Graphs New issue java.lang.NullPointerException error on startup with springloaded-1.2.3.RELEASE.jar and Tomcat 6 #116 Closed mattdandrea opened this Issue Apr 17, 2015 · 3 comments Projects None yet Labels None yet Milestone 1.2.4 Assignees No one assigned 2 participants mattdandrea commented Apr 17, 2015 Hi, I tried to use springloaded-1.2.3.RELEASE.jar with Tomcat 6. I've added the following to my VM args: -javaagent:"(some_dir)\springloaded-1.2.3.RELEASE.jar" -noverify When I try to start Tomcat up, I'm hammered with these errors: java.lang.NullPointerException at org.springsource.loaded.agent.SpringLoadedPreProcessor.tryToEnsureSystemClassesInitialized(SpringLoadedPreProcessor.java:362) at org.springsource.loaded.agent.SpringLoadedPreProcessor.preProcess(SpringLoadedPreProcessor.java:128) at org.springsource.loaded.agent.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:102) at sun.instrument.TransformerManager.transform(TransformerManager.java:188) at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:424) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2818) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2818) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647) at org.apache.catalina.loader.WebappClassLoader.loa