Re: [tycho-user] NullPointerException org.codehaus.mojo:build-helper-mav

[Mickael Istria <mistria@xxxxxxxxxx>]

Hi,

I often had troubles with build-helper-maven-plugin 1.3.
Have you tried with the latest version (1.7), it generally works better.

HTH

On 02/21/2012 05:03 PM, Oliver Pfau wrote:

Hi,

I changed my build from Tycho 0.12.0 to 0.14.0 and defined all dependencies in a target definition file. The target definition is in an eclipse project and I added it in the project pom like this:

<build>
		<plugins>
			<plugin>
				<groupId>org.codehaus.mojo</groupId>
				<artifactId>build-helper-maven-plugin</artifactId>
				<version>1.3</version>
				<executions>
					<execution>
						<id>attach-artifacts</id>
						<phase>package</phase>
						<goals>
							<goal>attach-artifact</goal>
						</goals>
						<configuration>
							<artifacts>
								<artifact>
									<file>targetdef_both.target</file>
									<type>target</type>
									<classifier>targetdef</classifier>
								</artifact>
							</artifacts>
						</configuration>
					</execution>
				</executions>
			</plugin>
		
		</plugins>
	</build>

And also in the top parent pom:

<target>
	<artifact>
		<groupId>groupid</groupId>
		<artifactId> groupid.targetdefinition</artifactId>
		<version>1.0.0</version>
		<classifier>targetdef</classifier>
	</artifact>
</target>

I got this exception:

[ERROR] Failed to execute goal org.codehaus.mojo:build-helper-maven-plugin:1.3:parse-version (versions) on project groupid.targetdefinition: Execution versions of goal org.codehaus.mojo:build-helper-maven-plugin:1.3:parse-version failed. NullPointerExcept
ion -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:build-helper-maven-plugin:1.3:parse-version
 (versions) on project groupid.targetdefinition: Execution versions of goal org.codehaus.mojo:build-helper-maven-pl
ugin:1.3:parse-version failed.
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution versions of goal org.codehaus.mojo:build-helper-maven-plugin:1.3:pars
e-version failed.
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 19 more
Caused by: java.lang.NullPointerException
        at java.util.Hashtable.put(Hashtable.java:394)
        at java.util.Properties.setProperty(Properties.java:143)
        at org.codehaus.mojo.buildhelper.ParseVersionMojo.execute(ParseVersionMojo.java:108)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        ... 20 more
[ERROR]
[ERROR]

Any idea?

Regards,
Oliver

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Mickael Istria
Eclipse developer at JBoss, by Red Hat
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