Warn if maven.compile.debug is not on - xref links will be incorrect.

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@373628 13f79535-47bb-0310-9956-ffa450edef68

jdepend/plugin.jelly

@@ -43,12 +43,20 @@
   <!-- J D E P E N D  X M L  T A R G E T                                  -->
   <!-- ================================================================== -->
 
-  <goal 
+  <goal
     name="maven-jdepend-plugin:report"
     description="Generate a dependency report with JDepend">
-    
+
     <j:if test="${sourcesPresent == 'true'}">
 
+    <j:if test="${maven.compile.debug != 'on'}">
+      <echo>
+***  WARNING: JDepend is only fully functional if source files are compiled with debugging information turned on.
+***  The source file cross links generated by this run of JDepend will not be correct.
+***  Please set maven.compile.debug = on
+      </echo>
+    </j:if>
+
     <attainGoal name="java:compile"/>
 
     <ant:java 
@@ -70,7 +78,7 @@
         outputMode="xml"
         prettyPrint="true"
         />
-    
+
     </j:if>
 
   </goal>