java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at java.lang.ClassLoader.getResources(ClassLoader.java:1015)
at org.apache.commons.discovery.jdk.JDK12Hooks.getResources(JDK12Hooks.java:150)
at org.apache.commons.discovery.resource.DiscoverResources$1.getNextResources(DiscoverResources.java:153)
at org.apache.commons.discovery.resource.DiscoverResources$1.getNextResource(DiscoverResources.java:129)
at org.apache.commons.discovery.resource.DiscoverResources$1.hasNext(DiscoverResources.java:116)
at org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.getNextClassNames(DiscoverNamesInFile.java:186)
at org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.getNextClassName(DiscoverNamesInFile.java:170)
at org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.hasNext(DiscoverNamesInFile.java:157)
at org.apache.commons.discovery.resource.names.NameDiscoverers$1.getNextIterator(NameDiscoverers.java:143)
at org.apache.commons.discovery.resource.names.NameDiscoverers$1.hasNext(NameDiscoverers.java:126)
at org.apache.commons.discovery.resource.classes.ResourceClassDiscoverImpl$1.getNextResource(ResourceClassDiscoverImpl.java:159)
at org.apache.axis.configuration.EngineConfigurationFactoryFinder$1.run(EngineConfigurationFactoryFinder.java:120)
at org.apache.axis.configuration.EngineConfigurationFactoryFinder.newFactory(EngineConfigurationFactoryFinder.java:113)
at org.apache.axis.transport.http.AxisServletBase.getEngineEnvironment(AxisServletBase.java:273)
at org.apache.axis.transport.http.AxisServletBase.getEngine(AxisServletBase.java:172)
at org.apache.axis.transport.http.AxisServletBase.getOption(AxisServletBase.java:396)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3951)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4225)
at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1089)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1187)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:292)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1305)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1569)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1578)
at java.lang.Thread.run(Thread.java:595)

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