public class sun.jvm.hotspot.gc.z.ZExternalBitMap implements sun.jvm.hotspot.utilities.BitMapInterface
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: sun.jvm.hotspot.gc.z.ZExternalBitMap
  super_class: java.lang.Object
{
  private sun.jvm.hotspot.gc.z.ZPageTable pageTable;
    descriptor: Lsun/jvm/hotspot/gc/z/ZPageTable;
    flags: (0x0002) ACC_PRIVATE

  private final long oopSize;
    descriptor: J
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private java.util.HashMap<sun.jvm.hotspot.gc.z.ZPage, sun.jvm.hotspot.utilities.BitMap> pageToBitMap;
    descriptor: Ljava/util/HashMap;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/util/HashMap<Lsun/jvm/hotspot/gc/z/ZPage;Lsun/jvm/hotspot/utilities/BitMap;>;

  public void <init>(sun.jvm.hotspot.gc.z.ZCollectedHeap);
    descriptor: (Lsun/jvm/hotspot/gc/z/ZCollectedHeap;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
        start local 1 // sun.jvm.hotspot.gc.z.ZCollectedHeap collectedHeap
         0: .line 40
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 38
            aload 0 /* this */
            new java.util.HashMap
            dup
            invokespecial java.util.HashMap.<init>:()V
            putfield sun.jvm.hotspot.gc.z.ZExternalBitMap.pageToBitMap:Ljava/util/HashMap;
         2: .line 41
            aload 0 /* this */
            aload 1 /* collectedHeap */
            invokevirtual sun.jvm.hotspot.gc.z.ZCollectedHeap.heap:()Lsun/jvm/hotspot/gc/z/ZHeap;
            invokevirtual sun.jvm.hotspot.gc.z.ZHeap.pageTable:()Lsun/jvm/hotspot/gc/z/ZPageTable;
            putfield sun.jvm.hotspot.gc.z.ZExternalBitMap.pageTable:Lsun/jvm/hotspot/gc/z/ZPageTable;
         3: .line 42
            aload 0 /* this */
            invokestatic sun.jvm.hotspot.runtime.VM.getVM:()Lsun/jvm/hotspot/runtime/VM;
            invokevirtual sun.jvm.hotspot.runtime.VM.getOopSize:()J
            putfield sun.jvm.hotspot.gc.z.ZExternalBitMap.oopSize:J
         4: .line 43
            return
        end local 1 // sun.jvm.hotspot.gc.z.ZCollectedHeap collectedHeap
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    5     0           this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            0    5     1  collectedHeap  Lsun/jvm/hotspot/gc/z/ZCollectedHeap;
    MethodParameters:
               Name  Flags
      collectedHeap  

  private sun.jvm.hotspot.gc.z.ZPage getPage(long);
    descriptor: (J)Lsun/jvm/hotspot/gc/z/ZPage;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
        start local 1 // long zOffset
         0: .line 46
            lload 1 /* zOffset */
            getstatic sun.jvm.hotspot.gc.z.ZGlobals.ZAddressOffsetMask:J
            lcmp
            ifle 2
         1: .line 47
            new java.lang.RuntimeException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Not a Z offset: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            lload 1 /* zOffset */
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 50
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield sun.jvm.hotspot.gc.z.ZExternalBitMap.pageTable:Lsun/jvm/hotspot/gc/z/ZPageTable;
            lload 1 /* zOffset */
            invokestatic sun.jvm.hotspot.gc.z.ZUtils.longToAddress:(J)Lsun/jvm/hotspot/debugger/Address;
            invokevirtual sun.jvm.hotspot.gc.z.ZPageTable.get:(Lsun/jvm/hotspot/debugger/Address;)Lsun/jvm/hotspot/gc/z/ZPage;
            astore 3 /* page */
        start local 3 // sun.jvm.hotspot.gc.z.ZPage page
         3: .line 51
            aload 3 /* page */
            ifnonnull 5
         4: .line 52
            new java.lang.RuntimeException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Address not in pageTable: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            lload 1 /* zOffset */
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 54
      StackMap locals: sun.jvm.hotspot.gc.z.ZPage
      StackMap stack:
            aload 3 /* page */
            areturn
        end local 3 // sun.jvm.hotspot.gc.z.ZPage page
        end local 1 // long zOffset
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    6     0     this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            0    6     1  zOffset  J
            3    6     3     page  Lsun/jvm/hotspot/gc/z/ZPage;
    MethodParameters:
         Name  Flags
      zOffset  

  private sun.jvm.hotspot.utilities.BitMap getOrAddBitMap(sun.jvm.hotspot.gc.z.ZPage);
    descriptor: (Lsun/jvm/hotspot/gc/z/ZPage;)Lsun/jvm/hotspot/utilities/BitMap;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=8, args_size=2
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
        start local 1 // sun.jvm.hotspot.gc.z.ZPage page
         0: .line 58
            aload 0 /* this */
            getfield sun.jvm.hotspot.gc.z.ZExternalBitMap.pageToBitMap:Ljava/util/HashMap;
            aload 1 /* page */
            invokevirtual java.util.HashMap.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast sun.jvm.hotspot.utilities.BitMap
            astore 2 /* bitMap */
        start local 2 // sun.jvm.hotspot.utilities.BitMap bitMap
         1: .line 59
            aload 2 /* bitMap */
            ifnonnull 9
         2: .line 60
            aload 1 /* page */
            invokevirtual sun.jvm.hotspot.gc.z.ZPage.size:()J
            lstore 3 /* size */
        start local 3 // long size
         3: .line 62
            lload 3 /* size */
            aload 1 /* page */
            invokevirtual sun.jvm.hotspot.gc.z.ZPage.object_alignment_shift:()J
            l2i
            lushr
            lstore 5 /* maxNumObjects */
        start local 5 // long maxNumObjects
         4: .line 63
            lload 5 /* maxNumObjects */
            ldc 2147483647
            lcmp
            ifle 6
         5: .line 64
            new java.lang.RuntimeException
            dup
            ldc "int overflow"
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
         6: .line 66
      StackMap locals: sun.jvm.hotspot.utilities.BitMap long long
      StackMap stack:
            lload 5 /* maxNumObjects */
            l2i
            istore 7 /* intMaxNumObjects */
        start local 7 // int intMaxNumObjects
         7: .line 68
            new sun.jvm.hotspot.utilities.BitMap
            dup
            iload 7 /* intMaxNumObjects */
            invokespecial sun.jvm.hotspot.utilities.BitMap.<init>:(I)V
            astore 2 /* bitMap */
         8: .line 69
            aload 0 /* this */
            getfield sun.jvm.hotspot.gc.z.ZExternalBitMap.pageToBitMap:Ljava/util/HashMap;
            aload 1 /* page */
            aload 2 /* bitMap */
            invokevirtual java.util.HashMap.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        end local 7 // int intMaxNumObjects
        end local 5 // long maxNumObjects
        end local 3 // long size
         9: .line 72
      StackMap locals:
      StackMap stack:
            aload 2 /* bitMap */
            areturn
        end local 2 // sun.jvm.hotspot.utilities.BitMap bitMap
        end local 1 // sun.jvm.hotspot.gc.z.ZPage page
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0   10     0              this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            0   10     1              page  Lsun/jvm/hotspot/gc/z/ZPage;
            1   10     2            bitMap  Lsun/jvm/hotspot/utilities/BitMap;
            3    9     3              size  J
            4    9     5     maxNumObjects  J
            7    9     7  intMaxNumObjects  I
    MethodParameters:
      Name  Flags
      page  

  private int pageLocalBitMapIndex(sun.jvm.hotspot.gc.z.ZPage, long);
    descriptor: (Lsun/jvm/hotspot/gc/z/ZPage;J)I
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=6, args_size=3
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
        start local 1 // sun.jvm.hotspot.gc.z.ZPage page
        start local 2 // long zOffset
         0: .line 76
            lload 2 /* zOffset */
            aload 1 /* page */
            invokevirtual sun.jvm.hotspot.gc.z.ZPage.start:()J
            lsub
            lstore 4 /* pageLocalZOffset */
        start local 4 // long pageLocalZOffset
         1: .line 77
            lload 4 /* pageLocalZOffset */
            aload 1 /* page */
            invokevirtual sun.jvm.hotspot.gc.z.ZPage.object_alignment_shift:()J
            l2i
            lushr
            l2i
            ireturn
        end local 4 // long pageLocalZOffset
        end local 2 // long zOffset
        end local 1 // sun.jvm.hotspot.gc.z.ZPage page
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    2     0              this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            0    2     1              page  Lsun/jvm/hotspot/gc/z/ZPage;
            0    2     2           zOffset  J
            1    2     4  pageLocalZOffset  J
    MethodParameters:
         Name  Flags
      page     
      zOffset  

  private long convertToZOffset(long);
    descriptor: (J)J
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=6, locals=5, args_size=2
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
        start local 1 // long offset
         0: .line 81
            getstatic sun.jvm.hotspot.gc.z.ZGlobals.ZAddressSpaceStart:J
            aload 0 /* this */
            getfield sun.jvm.hotspot.gc.z.ZExternalBitMap.oopSize:J
            lload 1 /* offset */
            lmul
            ladd
            lstore 3 /* addr */
        start local 3 // long addr
         1: .line 82
            lload 3 /* addr */
            getstatic sun.jvm.hotspot.gc.z.ZGlobals.ZAddressOffsetMask:J
            land
            lreturn
        end local 3 // long addr
        end local 1 // long offset
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            0    2     1  offset  J
            1    2     3    addr  J
    MethodParameters:
        Name  Flags
      offset  

  public boolean at(long);
    descriptor: (J)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=8, args_size=2
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
        start local 1 // long offset
         0: .line 87
            aload 0 /* this */
            lload 1 /* offset */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.convertToZOffset:(J)J
            lstore 3 /* zOffset */
        start local 3 // long zOffset
         1: .line 88
            aload 0 /* this */
            lload 3 /* zOffset */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.getPage:(J)Lsun/jvm/hotspot/gc/z/ZPage;
            astore 5 /* page */
        start local 5 // sun.jvm.hotspot.gc.z.ZPage page
         2: .line 89
            aload 0 /* this */
            aload 5 /* page */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.getOrAddBitMap:(Lsun/jvm/hotspot/gc/z/ZPage;)Lsun/jvm/hotspot/utilities/BitMap;
            astore 6 /* bitMap */
        start local 6 // sun.jvm.hotspot.utilities.BitMap bitMap
         3: .line 90
            aload 0 /* this */
            aload 5 /* page */
            lload 3 /* zOffset */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.pageLocalBitMapIndex:(Lsun/jvm/hotspot/gc/z/ZPage;J)I
            istore 7 /* index */
        start local 7 // int index
         4: .line 92
            aload 6 /* bitMap */
            iload 7 /* index */
            invokevirtual sun.jvm.hotspot.utilities.BitMap.at:(I)Z
            ireturn
        end local 7 // int index
        end local 6 // sun.jvm.hotspot.utilities.BitMap bitMap
        end local 5 // sun.jvm.hotspot.gc.z.ZPage page
        end local 3 // long zOffset
        end local 1 // long offset
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    5     0     this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            0    5     1   offset  J
            1    5     3  zOffset  J
            2    5     5     page  Lsun/jvm/hotspot/gc/z/ZPage;
            3    5     6   bitMap  Lsun/jvm/hotspot/utilities/BitMap;
            4    5     7    index  I
    MethodParameters:
        Name  Flags
      offset  

  public void atPut(long, boolean);
    descriptor: (JZ)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=9, args_size=3
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
        start local 1 // long offset
        start local 3 // boolean value
         0: .line 97
            aload 0 /* this */
            lload 1 /* offset */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.convertToZOffset:(J)J
            lstore 4 /* zOffset */
        start local 4 // long zOffset
         1: .line 98
            aload 0 /* this */
            lload 4 /* zOffset */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.getPage:(J)Lsun/jvm/hotspot/gc/z/ZPage;
            astore 6 /* page */
        start local 6 // sun.jvm.hotspot.gc.z.ZPage page
         2: .line 99
            aload 0 /* this */
            aload 6 /* page */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.getOrAddBitMap:(Lsun/jvm/hotspot/gc/z/ZPage;)Lsun/jvm/hotspot/utilities/BitMap;
            astore 7 /* bitMap */
        start local 7 // sun.jvm.hotspot.utilities.BitMap bitMap
         3: .line 100
            aload 0 /* this */
            aload 6 /* page */
            lload 4 /* zOffset */
            invokevirtual sun.jvm.hotspot.gc.z.ZExternalBitMap.pageLocalBitMapIndex:(Lsun/jvm/hotspot/gc/z/ZPage;J)I
            istore 8 /* index */
        start local 8 // int index
         4: .line 102
            aload 7 /* bitMap */
            iload 8 /* index */
            iload 3 /* value */
            invokevirtual sun.jvm.hotspot.utilities.BitMap.atPut:(IZ)V
         5: .line 103
            return
        end local 8 // int index
        end local 7 // sun.jvm.hotspot.utilities.BitMap bitMap
        end local 6 // sun.jvm.hotspot.gc.z.ZPage page
        end local 4 // long zOffset
        end local 3 // boolean value
        end local 1 // long offset
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    6     0     this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            0    6     1   offset  J
            0    6     3    value  Z
            1    6     4  zOffset  J
            2    6     6     page  Lsun/jvm/hotspot/gc/z/ZPage;
            3    6     7   bitMap  Lsun/jvm/hotspot/utilities/BitMap;
            4    6     8    index  I
    MethodParameters:
        Name  Flags
      offset  
      value   

  public void clear();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=1
        start local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
         0: .line 107
            aload 0 /* this */
            getfield sun.jvm.hotspot.gc.z.ZExternalBitMap.pageToBitMap:Ljava/util/HashMap;
            invokevirtual java.util.HashMap.values:()Ljava/util/Collection;
            invokeinterface java.util.Collection.iterator:()Ljava/util/Iterator;
            astore 2
            goto 3
      StackMap locals: sun.jvm.hotspot.gc.z.ZExternalBitMap top java.util.Iterator
      StackMap stack:
         1: aload 2
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast sun.jvm.hotspot.utilities.BitMap
            astore 1 /* bitMap */
        start local 1 // sun.jvm.hotspot.utilities.BitMap bitMap
         2: .line 108
            aload 1 /* bitMap */
            invokevirtual sun.jvm.hotspot.utilities.BitMap.clear:()V
        end local 1 // sun.jvm.hotspot.utilities.BitMap bitMap
         3: .line 107
      StackMap locals:
      StackMap stack:
            aload 2
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 1
         4: .line 110
            return
        end local 0 // sun.jvm.hotspot.gc.z.ZExternalBitMap this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    5     0    this  Lsun/jvm/hotspot/gc/z/ZExternalBitMap;
            2    3     1  bitMap  Lsun/jvm/hotspot/utilities/BitMap;
}
SourceFile: "ZExternalBitMap.java"