diff -r 612f2e5647fc extexecution/src/org/netbeans/api/extexecution/ExternalProcessSupport.java
--- a/extexecution/src/org/netbeans/api/extexecution/ExternalProcessSupport.java	Wed Jul 08 09:24:30 2009 +0200
+++ b/extexecution/src/org/netbeans/api/extexecution/ExternalProcessSupport.java	Thu Jul 09 11:12:28 2009 +0200
@@ -62,11 +62,15 @@
     /**
      * Destroys the process passed as parameter and attempts to terminate all child
      * processes created during the process' execution.
+     * <p>
+     * Any process running in environment containing the same variables
+     * with the same values as those passed in <code>env</code> (all of them)
+     * is supposed to be part of the process tree and may be terminated.
      *
      * @param process process to kill
-     * @param env Map containing environment variable names and values.
-     *             Any process running with such envvar's value will be
-     *             terminated. Improves localization of child processes.
+     * @param env map containing the variables and their values which the
+     *             process must have to be considered being part of
+     *             the tree to kill
      */
     public static void destroy(@NonNull Process process, @NonNull Map<String, String> env) {
         Parameters.notNull("process", process);
diff -r 612f2e5647fc extexecution/src/org/netbeans/modules/extexecution/WrapperProcess.java
--- a/extexecution/src/org/netbeans/modules/extexecution/WrapperProcess.java	Wed Jul 08 09:24:30 2009 +0200
+++ b/extexecution/src/org/netbeans/modules/extexecution/WrapperProcess.java	Thu Jul 09 11:12:28 2009 +0200
@@ -50,7 +50,7 @@
  */
 public class WrapperProcess extends Process {
 
-    public static final String KEY_UUID = "NB_EXEC_PROCESS_UUID"; //NOI18N
+    public static final String KEY_UUID = "NB_EXEC_EXTEXECUTION_PROCESS_UUID"; //NOI18N
     private final String uuid;
 
     private final Process del;
diff -r 612f2e5647fc maven/src/org/netbeans/modules/maven/execute/MavenCommandLineExecutor.java
--- a/maven/src/org/netbeans/modules/maven/execute/MavenCommandLineExecutor.java	Wed Jul 08 09:24:30 2009 +0200
+++ b/maven/src/org/netbeans/modules/maven/execute/MavenCommandLineExecutor.java	Thu Jul 09 11:12:28 2009 +0200
@@ -85,7 +85,7 @@
     static final String ENV_PREFIX = "Env."; //NOI18N
     static final String ENV_JAVAHOME = "Env.JAVA_HOME"; //NOI18N
 
-    private static final String KEY_UUID = "NB_EXEC_PROCESS_UUID"; //NOI18N
+    private static final String KEY_UUID = "NB_EXEC_MAVEN_PROCESS_UUID"; //NOI18N
 
     private ProgressHandle handle;
     private Process process;