java.lang.RuntimeException: Unable to determine Maven version at org.jfrog.hudson.maven3.extractor.MavenExtractorEnvironment.isMavenVersionValid(MavenExtractorEnvironment.java:135) at org.jfrog.hudson.maven3.extractor.MavenExtractorEnvironment.buildEnvVars(MavenExtractorEnvironment.java:88) at hudson.model.AbstractBuild.getEnvironment(AbstractBuild.java:804) at hudson.maven.AbstractMavenBuild.getEnvironment(AbstractMavenBuild.java:59) at hudson.maven.MavenModuleSetBuild.getEnvironment(MavenModuleSetBuild.java:165) at hudson.model.AbstractBuild$AbstractRunner.decideWorkspace(AbstractBuild.java:419) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:436) at hudson.model.Run.run(Run.java:1376) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:479) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:230) Caused by: java.lang.NullPointerException at org.jfrog.hudson.util.MavenVersionHelper.isAtLeast(MavenVersionHelper.java:103) at org.jfrog.hudson.util.MavenVersionHelper.isAtLeastVersion(MavenVersionHelper.java:75) at org.jfrog.hudson.util.MavenVersionHelper.isAtLeastResolutionCapableVersion(MavenVersionHelper.java:65) at org.jfrog.hudson.maven3.extractor.MavenExtractorEnvironment.isMavenVersionValid(MavenExtractorEnvironment.java:133) ..