Examples of javax.tools.diagnostics.runtime.java.JavaHeap

Package javax.tools.diagnostics.runtime.java

Examples of javax.tools.diagnostics.runtime.java.JavaHeap

javax.tools.diagnostics.runtime.java.JavaHeap
Represents a single heap of managed objects. The heap can be viewed as an unordered collection of JavaObjects or as a region of storage within the Java Virtual Machine instance. The heap commonly contains JavaObject instances that are reachable by navigating chains of {@link JavaReference}These references can be obtained from the {@link JavaRuntime#getHeapRoots()} method.A heap can contain instances which cannot be reached by the use of {@link JavaReference}

  }


  private void subTestGetObjectHeap(int counter, JavaHeap heap,
      int objcounter, JavaObject object) {
    try {
      JavaHeap parentheap=object.getHeap();
      assertNotNull("Entry "+counter+"/"+objcounter+" getHeap is null",parentheap);
      assertEquals("Entry "+counter+"/"+objcounter+" getHeap is not expected parent",heap,parentheap);
      
    } catch (CorruptDataException e3) {
      // allowed

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      if (nextHeap instanceof CorruptData) {
        System.err.println("returned CorruptData `" + nextHeap + "'");
        break;
      }


      JavaHeap aJavaHeap = (JavaHeap) nextHeap;
      assertTrue("One of the java heaps has a null name.", aJavaHeap.getName()!=null);
    }
  }

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      if (nextHeap instanceof CorruptData) {
        System.err.println("returned CorruptData `" + nextHeap + "'");
        break;
      }


      JavaHeap aJavaHeap = (JavaHeap) nextHeap;
      Iterator objects = aJavaHeap.getObjects().iterator();


      while (objects.hasNext()) {
        Object nextObject = objects.next();
        if (nextObject instanceof CorruptData) {
          System.err.println("returned CorruptData `" + nextObject + "'");

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          // Old method for returning java objects
          Iterator heapList = javaRT.getHeaps().iterator();


          while (heapList.hasNext()){
            JavaHeap heap = (JavaHeap) heapList.next();
            Iterator objectList = heap.getObjects().iterator();
            while (objectList.hasNext()){
              JavaObject jObject = (JavaObject)objectList.next();
              if (jObject.getID().getAddress() == objectID){
                return jObject;
              }

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    while(heapIt.hasNext()) {
      Object potential = heapIt.next();
      
      if(potential instanceof JavaHeap) {
        JavaHeap thisHeap = (JavaHeap)potential;
        
        workingSet.remove(thisHeap.getName());
      } else if (potential instanceof CorruptData) {
        reportError("Corrupt heap found. Address = " + ((CorruptData)potential).getAddress(),null);
        _numberOfErrors++;
      } else {
        _numberOfErrors++;

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            + ((CorruptData) thisHeapObj).getAddress());
        _numberOfErrors++;
        continue;
      }


      JavaHeap thisHeap = (JavaHeap) thisHeapObj;
      
      if(heapsToDump.size() > 0 && ! heapsToDump.contains(thisHeap.getName())) {
        continue;
      }
      
      dumpHeap(formatter, thisHeap);
    }

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            + ((CorruptData) thisHeapObj).getAddress());
        _numberOfErrors++;
        continue;
      }


      JavaHeap thisHeap = (JavaHeap) thisHeapObj;


      // Create a new heapdump formatter for every heap we find
      if (formatter != null) {
        formatter.close();
      }


      if(heapsToDump.size() > 0 && ! heapsToDump.contains(thisHeap.getName())) {
        continue;
      }
      
      String fileName = getFileNameForHeap(thisHeap,baseFileName);


      out.print("Writing " 
          + ( phdFormat ? "PHD" : "Classic") 
          + " format heapdump for heap " 
          + thisHeap.getName() 
          + " into " 
          + fileName + "\n");
      
      formatter = getFormatter(fileName, version, is64Bit, phdFormat);

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       if (nextHeap instanceof CorruptData) {
         continue;
       }
       
       JavaHeap heap = (JavaHeap) nextHeap;
       
       Iterator objects = heap.getObjects().iterator();
       
       while (objects.hasNext()) {
         Object nextObject = objects.next();
         
         if (nextObject instanceof CorruptData) {

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  }
  
  private void printHeapObjects(JavaRuntime jr, Long objAddress, String objName,
      Output out, boolean supers)
  {
    JavaHeap jh;
    Iterator itHeap = jr.getHeaps().iterator();
    int count = 1;
    
    while (itHeap.hasNext()) {
      jh = (JavaHeap)itHeap.next();
      
      out.print("\t heap #" + count + " - name: ");
      out.print(jh.getName());
      out.print("\n\n");
      
      printObjects(jh, objAddress, objName, out, supers, jr);
      count++;
    }

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    }
  }
  
  private void findInRuntime(JavaRuntime jr, long address)
  {
    JavaHeap jh;
    Iterator itHeap = jr.getHeaps().iterator();
    int count = 1;
    
    while (itHeap.hasNext()) {
      jh = (JavaHeap)itHeap.next();
      
      out.print("\t  heap #" + count + " - name: ");
      out.print(jh.getName() + "\n");
      
      findInHeap(jh, address);
      count++;
    }
  }

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