I get the following error when I try to execute a maven task from hudson. Maven is installed on the OS and I'm able to use it from the command line. Maven is configured inside Jenkins config but I still get this unclear error.

java.lang.IllegalArgumentException: /usr/bin/mvn without lib directory
at hudson.maven.MavenEmbedderUtils.buildClassRealm(MavenEmbedderUtils.java:81)
at hudson.maven.MavenEmbedderUtils.getMavenVersion(MavenEmbedderUtils.java:170)
at hudson.maven.MavenVersionCallable.call(MavenVersionCallable.java:56)
at hudson.maven.MavenVersionCallable.call(MavenVersionCallable.java:40)
at hudson.FilePath.act(FilePath.java:785)
at hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:568)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:423)
at hudson.model.Run.run(Run.java:1362)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:454)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:145)