Summary:

While executing a job, this stacktrace was thrown:

FATAL: null 
java.lang.NullPointerException 
at jenkins.plugins.nodejs.NodeJSBuildWrapper.setUp(NodeJSBuildWrapper.java:166) 
at jenkins.tasks.SimpleBuildWrapper.setUp(SimpleBuildWrapper.java:146) 
at hudson.model.Build$BuildExecution.doRun(Build.java:157) 
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:504) 
at hudson.model.Run.execute(Run.java:1819) 
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) 
at hudson.model.ResourceController.execute(ResourceController.java:97) 
at hudson.model.Executor.run(Executor.java:429) 

This caused the job to fail.

Steps to Reproduce:

1. Create a job that uses the nodejs plugin
2. Make sure the nodejs plugin is on version 1.3.0
3. Have the `default` location configured for the cache location
4. Run the job

Expected Behavior:

This job should have executed correctly as configured.

Actual Behavior:

This job failed when trying to access the cache location as it had a null value stored

Workaround:

Selecting another cache location such as `in the workspace` allowed for proper execution of the job.

Business Impact:

This will require every job that uses the default cache location to be reconfigured with another option. And builds that get run before that change is made will fail.