test/hotspot/jtreg/gc/TestSoftReferencesBehaviorOnOOME.java

8217332: JTREG: Clean up, use generics instead of raw types

*** 69,81 ****
       * Test that all SoftReferences has been cleared at time of OOM.
       */
      void softReferencesOom(long minSize, long maxSize) {
          System.out.format( "minSize = %d, maxSize = %d%n", minSize, maxSize );
  
!         LinkedList<SoftReference> arrSoftRefs = new LinkedList();
          staticRef = arrSoftRefs;
!         LinkedList arrObjects = new LinkedList();
          staticRef = arrObjects;
  
          long multiplier = maxSize - minSize;
          long numberOfNotNulledObjects = 0;
  
--- 69,81 ----
       * Test that all SoftReferences has been cleared at time of OOM.
       */
      void softReferencesOom(long minSize, long maxSize) {
          System.out.format( "minSize = %d, maxSize = %d%n", minSize, maxSize );
  
!         LinkedList<SoftReference<byte[]>> arrSoftRefs = new LinkedList<>();
          staticRef = arrSoftRefs;
!         LinkedList<byte[]> arrObjects = new LinkedList<>();
          staticRef = arrObjects;
  
          long multiplier = maxSize - minSize;
          long numberOfNotNulledObjects = 0;
  
***************
*** 87,97 ****
              System.out.println("num Soft: " + numSofts);
  
              while (numSofts-- > 0) {
                  int allocationSize = ((int) (RND_GENERATOR.nextDouble() * multiplier))
                              + (int)minSize;
!                 arrSoftRefs.add(new SoftReference(new byte[allocationSize]));
              }
  
              System.out.println("free: " + Runtime.getRuntime().freeMemory());
  
              // provoke OOME.
--- 87,97 ----
              System.out.println("num Soft: " + numSofts);
  
              while (numSofts-- > 0) {
                  int allocationSize = ((int) (RND_GENERATOR.nextDouble() * multiplier))
                              + (int)minSize;
!                 arrSoftRefs.add(new SoftReference<byte[]>(new byte[allocationSize]));
              }
  
              System.out.println("free: " + Runtime.getRuntime().freeMemory());
  
              // provoke OOME.
***************
*** 104,114 ****
              // Clear allocated ballast, so we don't get another OOM.
              staticRef = null;
              arrObjects = null;
              long oomSoftArraySize = arrSoftRefs.size();
  
!             for (SoftReference sr : arrSoftRefs) {
                  Object o = sr.get();
  
                  if (o != null) {
                      numberOfNotNulledObjects++;
                  }
--- 104,114 ----
              // Clear allocated ballast, so we don't get another OOM.
              staticRef = null;
              arrObjects = null;
              long oomSoftArraySize = arrSoftRefs.size();
  
!             for (SoftReference<byte[]> sr : arrSoftRefs) {
                  Object o = sr.get();
  
                  if (o != null) {
                      numberOfNotNulledObjects++;
                  }