[FIXED JENKINS-11878] fixing NPE during polling

this particular NPE seems to be possible when the user switches an existing build to perforce, and attempts to use polling before executing the build at least once.
jenkinsci · Nov 26, 2011 · 9ebaf4e · 9ebaf4e
1 parent c55d27e
commit 9ebaf4e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main/java/hudson/plugins/perforce/PerforceSCM.java b/src/main/java/hudson/plugins/perforce/PerforceSCM.java
@@ -874,7 +874,7 @@ else if (project.getLastBuild()!=null) {
             baseline = new PerforceSCMRevisionState(-1);
         }
 
-        if (project.getLastBuild() == null) {
+        if (project.getLastBuild() == null || baseline == null) {
             listener.getLogger().println("No previous builds to use for comparison.");
             return PollingResult.BUILD_NOW;
         }