31 import java.util.Map;
  32 import java.util.Set;
  33 
  34 public class VM {
  35 
  36     /* The following methods used to be native methods that instruct
  37      * the VM to selectively suspend certain threads in low-memory
  38      * situations. They are inherently dangerous and not implementable
  39      * on native threads. We removed them in JDK 1.2. The skeletons
  40      * remain so that existing applications that use these methods
  41      * will still work.
  42      */
  43     private static boolean suspended = false;
  44 
  45     /** @deprecated */
  46     @Deprecated
  47     public static boolean threadsSuspended() {
  48         return suspended;
  49     }
  50 

  51     public static boolean allowThreadSuspension(ThreadGroup g, boolean b) {
  52         return g.allowThreadSuspension(b);
  53     }
  54 
  55     /** @deprecated */
  56     @Deprecated
  57     public static boolean suspendThreads() {
  58         suspended = true;
  59         return true;
  60     }
  61 
  62     // Causes any suspended threadgroups to be resumed.
  63     /** @deprecated */
  64     @Deprecated
  65     public static void unsuspendThreads() {
  66         suspended = false;
  67     }
  68 
  69     // Causes threadgroups no longer marked suspendable to be resumed.
  70     /** @deprecated */

  31 import java.util.Map;
  32 import java.util.Set;
  33 
  34 public class VM {
  35 
  36     /* The following methods used to be native methods that instruct
  37      * the VM to selectively suspend certain threads in low-memory
  38      * situations. They are inherently dangerous and not implementable
  39      * on native threads. We removed them in JDK 1.2. The skeletons
  40      * remain so that existing applications that use these methods
  41      * will still work.
  42      */
  43     private static boolean suspended = false;
  44 
  45     /** @deprecated */
  46     @Deprecated
  47     public static boolean threadsSuspended() {
  48         return suspended;
  49     }
  50 
  51     @SuppressWarnings("deprecation") 
  52     public static boolean allowThreadSuspension(ThreadGroup g, boolean b) {
  53         return g.allowThreadSuspension(b);
  54     }
  55 
  56     /** @deprecated */
  57     @Deprecated
  58     public static boolean suspendThreads() {
  59         suspended = true;
  60         return true;
  61     }
  62 
  63     // Causes any suspended threadgroups to be resumed.
  64     /** @deprecated */
  65     @Deprecated
  66     public static void unsuspendThreads() {
  67         suspended = false;
  68     }
  69 
  70     // Causes threadgroups no longer marked suspendable to be resumed.
  71     /** @deprecated */