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 JIRA by Cédric Thiebault, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at org.obiba.opal.shell.commands.AbstractOpalRuntimeDependentCommand.getFileSystemRoot(AbstractOpalRuntimeDependentCommand.java:52)	at org.obiba.opal.shell.commands.AbstractOpalRuntimeDependentCommand.getFile(AbstractOpalRuntimeDependentCommand.java:56)	at org.obiba.opal.shell.commands.CopyCommand.resolveOutputFileAndCreateParentFolders(CopyCommand.java:288)	at org.obiba.opal.shell.commands.CopyCommand.getOutputFile(CopyCommand.java:273)	at org.obiba.opal.shell.commands.CopyCommand.getDestinationDatasource(CopyCommand.java:151)	at org.obiba.opal.shell.commands.CopyCommand.execute(CopyCommand.java:82)	at org.obiba.opal.shell.commands.CopyCommandTest.testMultipleTablesToExcelFile(CopyCommandTest.java:65)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:616)	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:616)	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)	at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)	at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107)	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68)