src/share/classes/java/lang/ThreadGroup.java

@@ -668,10 +668,11 @@
      * @since      JDK1.0
      * @deprecated    This method is inherently deadlock-prone.  See
      *     {@link Thread#suspend} for details.
      */
     @Deprecated
+    @SuppressWarnings("deprecation")
     public final void suspend() {
         if (stopOrSuspend(true))
             Thread.currentThread().suspend();
     }
 

@@ -680,10 +681,11 @@
      * boolean argument) all of the threads in this thread group and its
      * subgroups, except the current thread.  This method returns true
      * if (and only if) the current thread is found to be in this thread
      * group or one of its subgroups.
      */
+    @SuppressWarnings("deprecation")
     private boolean stopOrSuspend(boolean suspend) {
         boolean suicide = false;
         Thread us = Thread.currentThread();
         int ngroupsSnapshot;
         ThreadGroup[] groupsSnapshot = null;

@@ -729,10 +731,11 @@
      *      <tt>Thread.suspend</tt> and <tt>ThreadGroup.suspend</tt>,
      *       both of which have been deprecated, as they are inherently
      *       deadlock-prone.  See {@link Thread#suspend} for details.
      */
     @Deprecated
+    @SuppressWarnings("deprecation")
     public final void resume() {
         int ngroupsSnapshot;
         ThreadGroup[] groupsSnapshot;
         synchronized (this) {
             checkAccess();