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 GitHub by zacheryt757
, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at org.exist.webdav.ExistCollection.initMetadata(ExistCollection.java:120)	at org.exist.webdav.MiltonResource.authenticate(MiltonResource.java:340)	at com.bradmcevoy.http.http11.auth.BasicAuthHandler.authenticate(BasicAuthHandler.java:52)	at com.bradmcevoy.http.AuthenticationService.authenticate(AuthenticationService.java:152)	at com.bradmcevoy.http.HandlerHelper.checkAuthentication(HandlerHelper.java:83)	at com.bradmcevoy.http.HandlerHelper.checkAuthorisation(HandlerHelper.java:95)	at com.bradmcevoy.http.ResourceHandlerHelper.processResource(ResourceHandlerHelper.java:117)	at com.bradmcevoy.http.webdav.PropFindHandler.processResource(PropFindHandler.java:103)	at com.bradmcevoy.http.ResourceHandlerHelper.process(ResourceHandlerHelper.java:91)	at com.bradmcevoy.http.webdav.PropFindHandler.process(PropFindHandler.java:97)	at com.bradmcevoy.http.StandardFilter.process(StandardFilter.java:52)	at com.bradmcevoy.http.FilterChain.process(FilterChain.java:40)	at com.bradmcevoy.http.HttpManager.process(HttpManager.java:228)	at com.bradmcevoy.http.MiltonServlet.service(MiltonServlet.java:195)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:669)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:457)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:575)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:229)	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:103)	at org.exist.http.urlrewrite.Forward.doRewrite(Forward.java:50)	at org.exist.http.urlrewrite.XQueryURLRewrite.service(XQueryURLRewrite.java:221)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:669)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:457)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)	at org.eclipse.jetty.server.Server.handle(Server.java:368)	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:488)	at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:943)	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1004)	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861)	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)	at java.lang.Thread.run(Thread.java:745)