Fix potential NPE

diff --git a/sonar-plugin-api/src/main/java/org/sonar/api/measures/RuleMeasure.java b/sonar-plugin-api/src/main/java/org/sonar/api/measures/RuleMeasure.java
index b0932018c0389b864c0111e3f6d8a1b48673ab8c..4f966e2bab6eed6944de8000e9965ca3d2221bb3 100644 (file)
--- a/sonar-plugin-api/src/main/java/org/sonar/api/measures/RuleMeasure.java
+++ b/sonar-plugin-api/src/main/java/org/sonar/api/measures/RuleMeasure.java
@@ -42,7 +42,7 @@ public class RuleMeasure extends Measure {
    */
   @Deprecated
   public RuleMeasure(Metric metric, @Nullable Rule rule, @Nullable RulePriority rulePriority, @Nullable Integer ruleCategory) {
-    this(metric, rule.ruleKey(), rulePriority, ruleCategory);
+    this(metric, rule != null ? rule.ruleKey() : null, rulePriority, ruleCategory);
   }
 
   public RuleMeasure(Metric metric, @Nullable RuleKey ruleKey, @Nullable RulePriority rulePriority, @Nullable Integer ruleCategory) {