[MEJB-50] Empty src/main/java causes ejb plugin to fail

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.1
• Fix Version/s: 2.4

Environment

Apache Maven 2.2.1 (rdebian-1)
Java version: 1.6.0_22
Java home: /usr/lib/jvm/java-6-sun-1.6.0.22/jre
Default locale: en_GB, platform encoding: UTF-8
OS name: "linux" version: "2.6.32-24-generic" arch: "i386" Family: "unix" (Ubuntu 10.04)

• Assignee: Karl Heinz Marbaise
• Reporter: Joe Littlejohn
• Created: 21/Oct/10 06:43
• Updated: 08/Aug/14 09:45
• Resolved: 08/Aug/14 09:45

Description

I have a created a simple project that includes a module with a packaging type of ejb. This module does not yet contain any Java classes. When I run mvn clean package I get the following error:

There was a problem creating the EJB archive: /home/jlittlej/workspace/todo/trunk/ToDo-Core/target/classes isn't a directory.

If the packaging type is jar, this error does not occur - a normal jar that doesn't contain any classes is built. If the packaging type is ejb, the build fails.

Full trace:

[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: There was a problem creating the EJB archive: /home/jlittlej/workspace/todo/trunk/ToDo-Core/target/classes isn't a directory.
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
	at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
	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.classworlds.Launcher.launchEnhanced(Launcher.java:315)
	at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
	at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
	at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.MojoExecutionException: There was a problem creating the EJB archive: /home/jlittlej/workspace/todo/trunk/ToDo-Core/target/classes isn't a directory.
	at org.apache.maven.plugin.ejb.EjbMojo.execute(EjbMojo.java:256)
	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
	... 17 more
Caused by: org.codehaus.plexus.archiver.ArchiverException: /home/jlittlej/workspace/todo/trunk/ToDo-Core/target/classes isn't a directory.
	at org.codehaus.plexus.archiver.AbstractArchiver.addFileSet(AbstractArchiver.java:208)
	at org.codehaus.plexus.archiver.AbstractArchiver.addDirectory(AbstractArchiver.java:194)
	at org.codehaus.plexus.archiver.AbstractArchiver.addDirectory(AbstractArchiver.java:182)
	at org.apache.maven.plugin.ejb.EjbMojo.execute(EjbMojo.java:244)
	... 19 more