http://lucene.apache.org/lucene-parent/lucene-core: Apache Lucene Java Core (The Apache Software Foundation) 
public class org.apache.lucene.util.SentinelIntSet
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.lucene.util.SentinelIntSet
  super_class: java.lang.Object
{
  public int[] keys;
    descriptor: [I
    flags: (0x0001) ACC_PUBLIC

  public int count;
    descriptor: I
    flags: (0x0001) ACC_PUBLIC

  public final int emptyVal;
    descriptor: I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL

  public int rehashCount;
    descriptor: I
    flags: (0x0001) ACC_PUBLIC

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 40
            ldc Lorg/apache/lucene/util/SentinelIntSet;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic org.apache.lucene.util.SentinelIntSet.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(int, int);
    descriptor: (II)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // org.apache.lucene.util.SentinelIntSet this
        start local 1 // int size
        start local 2 // int emptyVal
         0: .line 54
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 55
            aload 0 /* this */
            iload 2 /* emptyVal */
            putfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
         2: .line 56
            iload 1 /* size */
            invokestatic org.apache.lucene.util.BitUtil.nextHighestPowerOfTwo:(I)I
            iconst_1
            invokestatic java.lang.Math.max:(II)I
            istore 3 /* tsize */
        start local 3 // int tsize
         3: .line 57
            aload 0 /* this */
            iload 3 /* tsize */
            iload 3 /* tsize */
            iconst_2
            ishr
            isub
            putfield org.apache.lucene.util.SentinelIntSet.rehashCount:I
         4: .line 58
            iload 1 /* size */
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.rehashCount:I
            if_icmplt 7
         5: .line 59
            iload 3 /* tsize */
            iconst_1
            ishl
            istore 3 /* tsize */
         6: .line 60
            aload 0 /* this */
            iload 3 /* tsize */
            iload 3 /* tsize */
            iconst_2
            ishr
            isub
            putfield org.apache.lucene.util.SentinelIntSet.rehashCount:I
         7: .line 62
      StackMap locals: org.apache.lucene.util.SentinelIntSet int int int
      StackMap stack:
            aload 0 /* this */
            iload 3 /* tsize */
            newarray 10
            putfield org.apache.lucene.util.SentinelIntSet.keys:[I
         8: .line 63
            iload 2 /* emptyVal */
            ifeq 10
         9: .line 64
            aload 0 /* this */
            invokevirtual org.apache.lucene.util.SentinelIntSet.clear:()V
        10: .line 65
      StackMap locals:
      StackMap stack:
            return
        end local 3 // int tsize
        end local 2 // int emptyVal
        end local 1 // int size
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   11     0      this  Lorg/apache/lucene/util/SentinelIntSet;
            0   11     1      size  I
            0   11     2  emptyVal  I
            3   11     3     tsize  I
    MethodParameters:
          Name  Flags
      size      
      emptyVal  

  public void clear();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.lucene.util.SentinelIntSet this
         0: .line 68
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            invokestatic java.util.Arrays.fill:([II)V
         1: .line 69
            aload 0 /* this */
            iconst_0
            putfield org.apache.lucene.util.SentinelIntSet.count:I
         2: .line 70
            return
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/lucene/util/SentinelIntSet;

  public int hash(int);
    descriptor: (I)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // org.apache.lucene.util.SentinelIntSet this
        start local 1 // int key
         0: .line 76
            iload 1 /* key */
            ireturn
        end local 1 // int key
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/util/SentinelIntSet;
            0    1     1   key  I
    MethodParameters:
      Name  Flags
      key   

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.lucene.util.SentinelIntSet this
         0: .line 80
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.count:I
            ireturn
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/util/SentinelIntSet;

  public int getSlot(int);
    descriptor: (I)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=2
        start local 0 // org.apache.lucene.util.SentinelIntSet this
        start local 1 // int key
         0: .line 84
            getstatic org.apache.lucene.util.SentinelIntSet.$assertionsDisabled:Z
            ifne 1
            iload 1 /* key */
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            if_icmpne 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 85
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iload 1 /* key */
            invokevirtual org.apache.lucene.util.SentinelIntSet.hash:(I)I
            istore 2 /* h */
        start local 2 // int h
         2: .line 86
            iload 2 /* h */
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            arraylength
            iconst_1
            isub
            iand
            istore 3 /* s */
        start local 3 // int s
         3: .line 87
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            iload 1 /* key */
            if_icmpeq 4
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            if_icmpne 5
      StackMap locals: int int
      StackMap stack:
         4: iload 3 /* s */
            ireturn
         5: .line 89
      StackMap locals:
      StackMap stack:
            iload 2 /* h */
            bipush 7
            ishr
            iconst_1
            ior
            istore 4 /* increment */
        start local 4 // int increment
         6: .line 91
      StackMap locals: int
      StackMap stack:
            iload 3 /* s */
            iload 4 /* increment */
            iadd
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            arraylength
            iconst_1
            isub
            iand
            istore 3 /* s */
         7: .line 92
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            iload 1 /* key */
            if_icmpeq 8
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            if_icmpne 6
         8: .line 93
      StackMap locals:
      StackMap stack:
            iload 3 /* s */
            ireturn
        end local 4 // int increment
        end local 3 // int s
        end local 2 // int h
        end local 1 // int key
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    9     0       this  Lorg/apache/lucene/util/SentinelIntSet;
            0    9     1        key  I
            2    9     2          h  I
            3    9     3          s  I
            6    9     4  increment  I
    MethodParameters:
      Name  Flags
      key   

  public int find(int);
    descriptor: (I)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=2
        start local 0 // org.apache.lucene.util.SentinelIntSet this
        start local 1 // int key
         0: .line 98
            getstatic org.apache.lucene.util.SentinelIntSet.$assertionsDisabled:Z
            ifne 1
            iload 1 /* key */
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            if_icmpne 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 99
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iload 1 /* key */
            invokevirtual org.apache.lucene.util.SentinelIntSet.hash:(I)I
            istore 2 /* h */
        start local 2 // int h
         2: .line 100
            iload 2 /* h */
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            arraylength
            iconst_1
            isub
            iand
            istore 3 /* s */
        start local 3 // int s
         3: .line 101
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            iload 1 /* key */
            if_icmpne 4
            iload 3 /* s */
            ireturn
         4: .line 102
      StackMap locals: int int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            if_icmpne 5
            iload 3 /* s */
            ineg
            iconst_1
            isub
            ireturn
         5: .line 104
      StackMap locals:
      StackMap stack:
            iload 2 /* h */
            bipush 7
            ishr
            iconst_1
            ior
            istore 4 /* increment */
        start local 4 // int increment
         6: .line 106
      StackMap locals: int
      StackMap stack:
            iload 3 /* s */
            iload 4 /* increment */
            iadd
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            arraylength
            iconst_1
            isub
            iand
            istore 3 /* s */
         7: .line 107
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            iload 1 /* key */
            if_icmpne 8
            iload 3 /* s */
            ireturn
         8: .line 108
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 3 /* s */
            iaload
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            if_icmpne 6
            iload 3 /* s */
            ineg
            iconst_1
            isub
            ireturn
        end local 4 // int increment
        end local 3 // int s
        end local 2 // int h
        end local 1 // int key
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    9     0       this  Lorg/apache/lucene/util/SentinelIntSet;
            0    9     1        key  I
            2    9     2          h  I
            3    9     3          s  I
            6    9     4  increment  I
    MethodParameters:
      Name  Flags
      key   

  public boolean exists(int);
    descriptor: (I)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.lucene.util.SentinelIntSet this
        start local 1 // int key
         0: .line 114
            aload 0 /* this */
            iload 1 /* key */
            invokevirtual org.apache.lucene.util.SentinelIntSet.find:(I)I
            iflt 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 1 // int key
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/lucene/util/SentinelIntSet;
            0    2     1   key  I
    MethodParameters:
      Name  Flags
      key   

  public int put(int);
    descriptor: (I)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.apache.lucene.util.SentinelIntSet this
        start local 1 // int key
         0: .line 120
            aload 0 /* this */
            iload 1 /* key */
            invokevirtual org.apache.lucene.util.SentinelIntSet.find:(I)I
            istore 2 /* s */
        start local 2 // int s
         1: .line 121
            iload 2 /* s */
            ifge 9
         2: .line 122
            aload 0 /* this */
            dup
            getfield org.apache.lucene.util.SentinelIntSet.count:I
            iconst_1
            iadd
            putfield org.apache.lucene.util.SentinelIntSet.count:I
         3: .line 123
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.count:I
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.rehashCount:I
            if_icmplt 7
         4: .line 124
            aload 0 /* this */
            invokevirtual org.apache.lucene.util.SentinelIntSet.rehash:()V
         5: .line 125
            aload 0 /* this */
            iload 1 /* key */
            invokevirtual org.apache.lucene.util.SentinelIntSet.getSlot:(I)I
            istore 2 /* s */
         6: .line 126
            goto 8
         7: .line 127
      StackMap locals: int
      StackMap stack:
            iload 2 /* s */
            ineg
            iconst_1
            isub
            istore 2 /* s */
         8: .line 129
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 2 /* s */
            iload 1 /* key */
            iastore
         9: .line 131
      StackMap locals:
      StackMap stack:
            iload 2 /* s */
            ireturn
        end local 2 // int s
        end local 1 // int key
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lorg/apache/lucene/util/SentinelIntSet;
            0   10     1   key  I
            1   10     2     s  I
    MethodParameters:
      Name  Flags
      key   

  public void rehash();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=8, args_size=1
        start local 0 // org.apache.lucene.util.SentinelIntSet this
         0: .line 136
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            arraylength
            iconst_1
            ishl
            istore 1 /* newSize */
        start local 1 // int newSize
         1: .line 137
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            astore 2 /* oldKeys */
        start local 2 // int[] oldKeys
         2: .line 138
            aload 0 /* this */
            iload 1 /* newSize */
            newarray 10
            putfield org.apache.lucene.util.SentinelIntSet.keys:[I
         3: .line 139
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            ifeq 4
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            invokestatic java.util.Arrays.fill:([II)V
         4: .line 141
      StackMap locals: int int[]
      StackMap stack:
            aload 2 /* oldKeys */
            dup
            astore 6
            arraylength
            istore 5
            iconst_0
            istore 4
            goto 10
      StackMap locals: org.apache.lucene.util.SentinelIntSet int int[] top int int int[]
      StackMap stack:
         5: aload 6
            iload 4
            iaload
            istore 3 /* key */
        start local 3 // int key
         6: .line 142
            iload 3 /* key */
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.emptyVal:I
            if_icmpne 7
            goto 9
         7: .line 143
      StackMap locals: org.apache.lucene.util.SentinelIntSet int int[] int int int int[]
      StackMap stack:
            aload 0 /* this */
            iload 3 /* key */
            invokevirtual org.apache.lucene.util.SentinelIntSet.getSlot:(I)I
            istore 7 /* newSlot */
        start local 7 // int newSlot
         8: .line 144
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            iload 7 /* newSlot */
            iload 3 /* key */
            iastore
        end local 7 // int newSlot
        end local 3 // int key
         9: .line 141
      StackMap locals: org.apache.lucene.util.SentinelIntSet int int[] top int int int[]
      StackMap stack:
            iinc 4 1
      StackMap locals:
      StackMap stack:
        10: iload 4
            iload 5
            if_icmplt 5
        11: .line 146
            aload 0 /* this */
            iload 1 /* newSize */
            iload 1 /* newSize */
            iconst_2
            ishr
            isub
            putfield org.apache.lucene.util.SentinelIntSet.rehashCount:I
        12: .line 147
            return
        end local 2 // int[] oldKeys
        end local 1 // int newSize
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   13     0     this  Lorg/apache/lucene/util/SentinelIntSet;
            1   13     1  newSize  I
            2   13     2  oldKeys  [I
            6    9     3      key  I
            8    9     7  newSlot  I

  public long ramBytesUsed();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.apache.lucene.util.SentinelIntSet this
         0: .line 152
            bipush 12
         1: .line 153
            getstatic org.apache.lucene.util.RamUsageEstimator.NUM_BYTES_OBJECT_REF:I
         2: .line 152
            iadd
            i2l
         3: .line 151
            invokestatic org.apache.lucene.util.RamUsageEstimator.alignObjectSize:(J)J
         4: .line 154
            aload 0 /* this */
            getfield org.apache.lucene.util.SentinelIntSet.keys:[I
            invokestatic org.apache.lucene.util.RamUsageEstimator.sizeOf:([I)J
         5: .line 151
            ladd
            lreturn
        end local 0 // org.apache.lucene.util.SentinelIntSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/apache/lucene/util/SentinelIntSet;
}
SourceFile: "SentinelIntSet.java"