Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via java.net by Unknown author, 1 year ago
via Oracle Community by nicolascova, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)	at org.glassfish.web.loader.WebappClassLoader.findLoadedClass0(WebappClassLoader.java:2442)	at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1416)	at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1369)	at org.glassfish.webservices.codegen.JaxRpcRICodegen.accept(JaxRpcRICodegen.java:174)	at com.sun.enterprise.deployment.WebBundleDescriptor.visit(WebBundleDescriptor.java:2032)	at com.sun.enterprise.deployment.Application.visit(Application.java:1777)	at org.glassfish.webservices.codegen.JaxRpcRICodegen.run(JaxRpcRICodegen.java:153)	at org.glassfish.webservices.JAXRPCCodeGenFacadeImpl.run(JAXRPCCodeGenFacadeImpl.java:60)	at org.glassfish.javaee.core.deployment.JavaEEDeployer.prepare(JavaEEDeployer.java:210)	at com.sun.enterprise.v3.server.ApplicationLifecycle.prepareModule(ApplicationLifecycle.java:872)	at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:410)	at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)	at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:382)	at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:360)	at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:370)	at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1064)	at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:96)	at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1244)	at org.glassfish.deployment.autodeploy.AutoOperation.run(AutoOperation.java:145)	at org.glassfish.deployment.autodeploy.AutoDeployer.deploy(AutoDeployer.java:575)	at org.glassfish.deployment.autodeploy.AutoDeployer.deployAll(AutoDeployer.java:461)	at org.glassfish.deployment.autodeploy.AutoDeployer.run(AutoDeployer.java:389)	at org.glassfish.deployment.autodeploy.AutoDeployer.run(AutoDeployer.java:380)	at org.glassfish.deployment.autodeploy.AutoDeployService$1.run(AutoDeployService.java:209)	at java.util.TimerThread.mainLoop(Timer.java:512)	at java.util.TimerThread.run(Timer.java:462)