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

Samebug tips

  1. ,
    Expert tip

    Take a look at this blog post on how to set up Grid2 https://goo.gl/rxzbE6. A user related (in the email group on the source) that using older selenium libs solves this exception.

Solutions on the web

via Google Groups by Ashwini T R, 11 months ago
change 503 not found in ReviewDb
via Stack Overflow by Zhang Chun
, 1 year ago
via GitHub by anhdenday
, 2 years ago
URI template of the newly created target must not be null.
via GitHub by anhdenday
, 1 year ago
URI template of the newly created target must not be null.
via Stack Overflow by Jordi
, 1 year ago
java.lang.NullPointerException: change 503 not found in ReviewDb	at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:251)	at com.google.gerrit.server.notedb.ChangeNotes$Factory.loadChangeFromDb(ChangeNotes.java:157)	at com.google.gerrit.server.notedb.ChangeNotes$Factory.create(ChangeNotes.java:170)	at com.google.gerrit.server.query.change.ChangeData.notes(ChangeData.java:759)	at com.google.gerrit.server.query.change.ChangeData.reviewers(ChangeData.java:932)	at com.google.gerrit.server.project.ChangeControl.isReviewer(ChangeControl.java:364)	at com.google.gerrit.server.project.ChangeControl.isDraftVisible(ChangeControl.java:445)	at com.google.gerrit.server.project.ChangeControl.isVisible(ChangeControl.java:211)	at com.google.gerrit.server.query.change.ChangeIsVisibleToPredicate.match(ChangeIsVisibleToPredicate.java:67)	at com.google.gerrit.server.query.change.ChangeIsVisibleToPredicate.match(ChangeIsVisibleToPredicate.java:27)	at com.google.gerrit.server.query.AndSource.match(AndSource.java:147)	at com.google.gerrit.server.query.AndSource.readImpl(AndSource.java:101)	at com.google.gerrit.server.query.AndSource.read(AndSource.java:85)	at com.google.gerrit.server.query.QueryProcessor.query(QueryProcessor.java:191)	at com.google.gerrit.server.query.QueryProcessor.query(QueryProcessor.java:139)	at com.google.gerrit.server.query.change.QueryChanges.query(QueryChanges.java:123)	at com.google.gerrit.server.query.change.QueryChanges.apply(QueryChanges.java:94)	at com.google.gerrit.server.query.change.QueryChanges.apply(QueryChanges.java:38)	at com.google.gerrit.httpd.restapi.RestApiServlet.service(RestApiServlet.java:334)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)	at com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:286)	at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:276)	at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:181)	at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:85)	at com.google.gerrit.httpd.GetUserFilter.doFilter(GetUserFilter.java:82)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)	at com.google.gerrit.httpd.RequireSslFilter.doFilter(RequireSslFilter.java:77)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)	at com.google.gwtexpui.server.CacheControlFilter.doFilter(CacheControlFilter.java:73)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)	at com.google.gerrit.httpd.RunAsFilter.doFilter(RunAsFilter.java:122)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)	at com.google.gerrit.httpd.RequestMetricsFilter.doFilter(RequestMetricsFilter.java:60)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)	at com.google.gerrit.httpd.AllRequestFilter$FilterProxy$1.doFilter(AllRequestFilter.java:136)	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:201)	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:178)	at com.googlesource.gerrit.plugins.javamelody.GerritMonitoringFilter.doFilter(GerritMonitoringFilter.java:65)	at com.google.gerrit.httpd.AllRequestFilter$FilterProxy$1.doFilter(AllRequestFilter.java:132)	at com.google.gerrit.httpd.AllRequestFilter$FilterProxy.doFilter(AllRequestFilter.java:105)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)	at com.google.gerrit.httpd.RequestContextFilter.doFilter(RequestContextFilter.java:75)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)	at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:120)	at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:135)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)	at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:95)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)	at org.eclipse.jetty.server.Server.handle(Server.java:499)	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)	at java.lang.Thread.run(Unknown Source)