NullPointerException with inlcudePluginDependecies=true

[conerck]

Using mvn 3.3.3
Minimal test case POM (obviously the used dependencies are bogus, but it should be enough to replicate.

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>test</groupId> <artifactId>PluginDependencies</artifactId> <version>0.1-SNAPSHOT</version> <build> <pluginManagement> <plugins> <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>exec-maven-plugin</artifactId> <version>1.6.0</version> <executions> <execution> <id>default</id> <goals> <goal>java</goal> </goals> </execution> </executions> <configuration> <executableDependency> <groupId>org.codehaus.mojo</groupId> <artifactId>exec-maven-plugin</artifactId> </executableDependency> <includeProjectDependencies>false</includeProjectDependencies> <includePluginDependencies>true</includePluginDependencies> <mainClass>org.codehaus.mojo.exec.ExecJavaMojo</mainClass> </configuration> <dependencies> <dependency> <groupId>org.codehaus.mojo</groupId> <artifactId>exec-maven-plugin</artifactId> <version>1.6.0</version> <type>jar</type> </dependency> </dependencies> </plugin> </plugins> </pluginManagement> </build> </project>

This will fail with
` mvn exec:java
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building PluginDependencies 0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- exec-maven-plugin:1.6.0:java (default-cli) @ PluginDependencies ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.673 s
[INFO] Finished at: 2017-03-16T11:46:02+01:00
[INFO] Final Memory: 11M/309M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java (default-cli) on project PluginDependencies: Execution default-cli of goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java failed. NullPointerException -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
Picked up _JAVA_OPTIONS: -Xmx2048M

in 1.5.0 this setup worked fine. Obviously with this sample POM the build will still fail because the executableDependency has no mainClass.

[jmini]

@jonasrutishauser: I can confirm that the version 1.6.1-SNAPSHOT built from your bugfix/NPE-with-includePluginDependencies branch is also working for me. See my example project on GitHub: https://github.com/jmini/exec-maven-plugin_issue_76

Thank you a lot, I hope this will be merged back in the master.

[vasiliy-bout]

Hi, I use instruction from http://www.mojohaus.org/exec-maven-plugin/examples/example-exec-using-plugin-dependencies.html and still get NullPointerException. When this fix is going to be merged and released?

[thinkerou]

+1
cc @khmarbaise @jonasrutishauser

I use <exec-maven-plugin.version>1.5.0</exec-maven-plugin.version> it is OK, but use <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version> (ONLY Change version) will have the follow error:

[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java (generate-scala-protobuf-classes) on project gatling-grpc: Execution generate-scala-protobuf-classes of goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java failed.: NullPointerException -> [Help 1] [ERROR]

thanks a lot!

[jycr]

Any news about the resolution of this bug?

[masu1402]

Still not resolved? Can't see any new versions and the bug fix is still in an open branch.

[dwabm]

is there a merge an release roadmap for tis fix?

[workcartersmith]

This is still a thing.