Since ClearCase plugin version 1.3.12 executing a build job leads to java.lang.NullPointerException immediately (No problem with 1.3.11).

Console Output:

Started by user anonymous
Building in workspace C:\Documents and Settings\smatthes\.jenkins\jobs\wintest\workspace
FATAL: null
java.lang.NullPointerException
at hudson.plugins.clearcase.AbstractClearCaseScm$AbstractClearCaseScmDescriptor.getCleartoolExe(AbstractClearCaseScm.java:111)
at hudson.plugins.clearcase.AbstractClearCaseScm.createClearToolLauncher(AbstractClearCaseScm.java:794)
at hudson.plugins.clearcase.AbstractClearCaseScm.checkout(AbstractClearCaseScm.java:623)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1331)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:682)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:587)
at hudson.model.Run.execute(Run.java:1557)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:236)