[HAMA-871] NPE when building core module due to gmaven-plugin.

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 0.7.0
• Component/s: bsp core

Environment

maven 3.0.5 (as described in https://wiki.apache.org/hama/GettingStarted)
Java version: 1.6.0_25

• Assignee: Unassigned
• Reporter: Chia-Hung Lin
• Created: 13/Feb/14 06:32
• Updated: 18/Feb/14 00:58

Description

When testing with a command `mvn -f core/pom.xml clean install -Dtest=<TestCase>`, maven complains NPE as below

Caused by: java.lang.NullPointerException
	at java.util.Hashtable.put(Hashtable.java:394)
	at org.codehaus.groovy.maven.plugin.execute.GroovyMavenProjectAdapter$EvaluatingProperties.put(GroovyMavenProjectAdapter.java:162)
	at java.util.Properties.setProperty(Properties.java:143)

It looks like groovy-plugin raise the issue.

        <groupId>org.codehaus.groovy.maven</groupId>
        <artifactId>gmaven-plugin</artifactId>
        <version>1.0</version>

But changing to v1.4 or other version, found at http://docs.codehaus.org/display/GMAVEN/Home, shows that standard maven repository doesn't have those version.

Could not find artifact org.codehaus.groovy.maven:gmaven-plugin:pom:1.1 in central (http://repo.maven.apache.org/maven2)  

This doesn't block the compilation actually, because compilation process can be done via `mvn clean install` without a problem.

BTW, it seems that gmaven is discontinued.

GMaven provides integration of Groovy into Maven. This project has been discontinued since the structure doesn't work well with how Groovy's invokedynamic releases.