4719 Common patchset for jdk1.7 support preparation

*** 61,71 ****
      private static void
      sampleAggregate(Consumer consumer) throws DTraceException
      {
          while (consumer.isRunning() && !done.get()) {
              try {
!                 Thread.currentThread().sleep(50);
              } catch (InterruptedException e) {
              }
  
              consumer.getAggregate(Collections. <String> emptySet());
          }
--- 61,71 ----
      private static void
      sampleAggregate(Consumer consumer) throws DTraceException
      {
          while (consumer.isRunning() && !done.get()) {
              try {
!                 Thread.sleep(50);
              } catch (InterruptedException e) {
              }
  
              consumer.getAggregate(Collections. <String> emptySet());
          }