EmmaCoverageColumn: Fix NullPointerException in logfile if projects do not have coverage data (yet)

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      The following patch will prevent the plugin from showing NullPointerExceptions in the logfile if projects are not run yet or did not yet report coverage data.

      diff --git a/src/main/java/jenkins/plugins/emmacoveragecolumn/EmmaColumn.java b/src/main/java/jenkins/plugins/emmacoveragecolumn/EmmaColumn.java
index 34fe2c0..e60897a 100644
--- a/src/main/java/jenkins/plugins/emmacoveragecolumn/EmmaColumn.java
+++ b/src/main/java/jenkins/plugins/emmacoveragecolumn/EmmaColumn.java
@@ -76,9 +76,17 @@ public class EmmaColumn extends ListViewColumn {
        }
 
        private Float getPercentageFloat(final Run<?, ?> lastSuccessfulBuild) {
+               if(lastSuccessfulBuild == null) {
+                       return new Float(0);
+               }
+
                final EmmaBuildAction action = lastSuccessfulBuild
                                .getAction(EmmaBuildAction.class);
 
+               if(action == null) {
+                       return new Float(0);
+               }
+
                final CoverageReport result = action.getResult();
 
                final Ratio ratio = result.getLineCoverage();

            Assignee:
            Unassigned
            Reporter:
            centic
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              Created:
              Updated: