defined a system property to remove MAVEN_OPTS from Maven builds forked inside.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@34044 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/EnvVars.java

@@ -226,7 +226,7 @@ public class EnvVars extends TreeMap<String,String> {
     private static EnvVars initMaster() {
         EnvVars vars = new EnvVars(System.getenv());
         vars.platform = Platform.current();
-        if(Main.isUnitTest)
+        if(Main.isUnitTest || Main.isDevelopmentMode)
             // if unit test is launched with maven debug switch,
             // we need to prevent forked Maven processes from seeing it, or else
             // they'll hang

core/src/main/java/hudson/Main.java

@@ -183,6 +183,11 @@ public class Main {
      */
     public static boolean isUnitTest = false;
 
+    /**
+     * Set to true if we are running inside "mvn hpi:run" or "mvn hudson-dev:run"
+     */
+    public static boolean isDevelopmentMode = Boolean.getBoolean(Main.class.getName()+".development");
+
     /**
      * Time out for socket connection to Hudson.
      */

war/pom.xml

@@ -204,6 +204,10 @@ THE SOFTWARE.
               <name>hudson.model.UsageStatistics.disabled</name>
               <value>true</value>
             </systemProperty>
+            <systemProperty>
+              <name>hudson.Main.development</name>
+              <value>true</value>
+            </systemProperty>
           </systemProperties>
         </configuration>
       </plugin>