mvn liferay:build-service failed with NPE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: No Longer Reproducible
• Affects Version/s: 6.1.0 GA1
• Fix Version/s: 6.2.0 GA1
• Component/s: General, Plugins
• Labels: None
• Environment: Windows (running under Cygwin)

This are the steps to generate this

1] create a portlet plugin through

    mvn archetype:generate   
             -DarchetypeArtifactId=liferay-portlet-archetype   
             -DarchetypeGroupId=com.liferay.maven.archetypes   
             -DarchetypeVersion=6.1.0   
             -DarchetypeCatalog=local,remote   
             -DartifactId=sample-portlet   
             -DgroupId=foo.bar.portlet.portlet1   
             -Dversion=1.0-SNAPSHOT  

2] add service.xml under src/main/webapp/WEB-INF/ folder, content of service.xml as follows :-

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE service-builder PUBLIC "-//Liferay//DTD Service Builder 6.0.0//EN" "http://www.liferay.com/dtd/liferay-service-builder_6_0_0.dtd">
<service-builder package-path="foo.bar.portlets.services">
	<author>whatever</author>
	<namespace>FF</namespace>

	<entity name="Foo" local-service="true" remote-service="true">

		<!-- PK fields -->
		<column name="fooId" type="long" primary="true" />

		<!-- Audit fields -->
		<column name="companyId" type="long" />
		<column name="userId" type="long" />
		<column name="userName" type="String" />
		<column name="createDate" type="Date" />
		<column name="modifiedDate" type="Date" />

		<!-- Other fields -->
		<column name="field1" type="String" />
		<column name="field2" type="boolean" />
		<column name="field3" type="int" />
		<column name="field4" type="Date" />
		<column name="field5" type="String" />

		<!-- Order -->
		<order by="asc">
			<order-column name="field1" />
		</order>

		<!-- Finder methods -->
		<finder name="Field2" return-type="Collection">
			<finder-column name="field2" />
		</finder>
	</entity>
</service-builder>

3] Run the following command (got properties set accordingly in maven myProfile)

  mvn liferay:build-service -P myProfile

4] End up with NPE, following is the stack trace

- Refreshed the configuration of all components
- Properties for jar:file:/..../maven_repo/com/liferay/portal/portal-impl/6.1.0/po
rtal-impl-6.1.0.jar!/portal loaded from [jar:file:/..../maven_repo/com/liferay/por
tal/portal-impl/6.1.0/portal-impl-6.1.0.jar!/portal.properties]
Loading jar:file:/..../maven_repo/com/liferay/portal/portal-impl/6.1.0/portal-impl
-6.1.0.jar!/portal.properties
Building Foo
java.lang.NullPointerException
        at com.liferay.portal.tools.servicebuilder.ServiceBuilder._getJavaClass(
ServiceBuilder.java:4221)
        at com.liferay.portal.tools.servicebuilder.ServiceBuilder._createModelWr
apper(ServiceBuilder.java:2242)
        at com.liferay.portal.tools.servicebuilder.ServiceBuilder.<init>(Service
Builder.java:670)
        at com.liferay.portal.tools.servicebuilder.ServiceBuilder.<init>(Service
Builder.java:430)
        at com.liferay.maven.plugins.ServiceBuilderMojo.doExecute(ServiceBuilder
Mojo.java:119)
        at com.liferay.maven.plugins.ServiceBuilderMojo.execute(ServiceBuilderMo
jo.java:59)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(Default
BuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:209)
        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.buildProje
ct(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBu
ild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(Lifecycl
eStarter.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:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun
cher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav
a:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La
uncher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:
352)