Sergey Chernov created MNG-6626:
-----------------------------------
Summary: NullPointerException in DefaultExceptionHandler
Key: MNG-6626
URL: https://issues.apache.org/jira/browse/MNG-6626
Project: Maven
Issue Type: Bug
Components: core
Affects Versions: 3.6.0
Reporter: Sergey Chernov
Attachments: original-exception.txt
`DefaulExceptionHandler` classifies errors on goal execution. There is a
special case when the root cause is `NoClassDefFoundError` with null message,
it causes NPE with the stacktrace:
{code}
java.lang.NullPointerException
at org.apache.maven.exception.DefaultExceptionHandler.getReference
(DefaultExceptionHandler.java:212)
at org.apache.maven.exception.DefaultExceptionHandler.getReference
(DefaultExceptionHandler.java:231)
at org.apache.maven.exception.DefaultExceptionHandler.handle
(DefaultExceptionHandler.java:101)
at org.apache.maven.exception.DefaultExceptionHandler.handleException
(DefaultExceptionHandler.java:96)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
{code}
The problem here is that the real exception is lost and it's even not present
in debug log mode. The full root exception is attached to the ticket
(original-exception.txt).
The reason for this defect is trivial: DefaultExceptionHandler.java:212 does
not have a null check for getMessage
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
