Fix NullPointerException if pom.build.sourceDirectory or pom.build.unitTestSourceDirectory are not defined. git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@374409 13f79535-47bb-0310-9956-ffa450edef68
Fix NullPointerException if pom.build.sourceDirectory or pom.build.unitTestSourceDirectory are not defined. git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@374409 13f79535-47bb-0310-9956-ffa450edef68