http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
public final class org.apache.fop.layoutmgr.Keep
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.fop.layoutmgr.Keep
  super_class: java.lang.Object
{
  private static final int STRENGTH_AUTO;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: -2147483648

  private static final int STRENGTH_ALWAYS;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 2147483647

  public static final org.apache.fop.layoutmgr.Keep KEEP_AUTO;
    descriptor: Lorg/apache/fop/layoutmgr/Keep;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.apache.fop.layoutmgr.Keep KEEP_ALWAYS;
    descriptor: Lorg/apache/fop/layoutmgr/Keep;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  private int strength;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int context;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=0, args_size=0
         0: .line 39
            new org.apache.fop.layoutmgr.Keep
            dup
            ldc -2147483648
            bipush 9
            invokespecial org.apache.fop.layoutmgr.Keep.<init>:(II)V
            putstatic org.apache.fop.layoutmgr.Keep.KEEP_AUTO:Lorg/apache/fop/layoutmgr/Keep;
         1: .line 42
            new org.apache.fop.layoutmgr.Keep
            dup
            ldc 2147483647
            bipush 75
            invokespecial org.apache.fop.layoutmgr.Keep.<init>:(II)V
            putstatic org.apache.fop.layoutmgr.Keep.KEEP_ALWAYS:Lorg/apache/fop/layoutmgr/Keep;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>(int, int);
    descriptor: (II)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.apache.fop.layoutmgr.Keep this
        start local 1 // int strength
        start local 2 // int context
         0: .line 48
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 49
            aload 0 /* this */
            iload 1 /* strength */
            putfield org.apache.fop.layoutmgr.Keep.strength:I
         2: .line 50
            aload 0 /* this */
            iload 2 /* context */
            putfield org.apache.fop.layoutmgr.Keep.context:I
         3: .line 51
            return
        end local 2 // int context
        end local 1 // int strength
        end local 0 // org.apache.fop.layoutmgr.Keep this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lorg/apache/fop/layoutmgr/Keep;
            0    4     1  strength  I
            0    4     2   context  I
    MethodParameters:
          Name  Flags
      strength  
      context   

  private static int getKeepStrength(org.apache.fop.fo.properties.Property);
    descriptor: (Lorg/apache/fop/fo/properties/Property;)I
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.fop.fo.properties.Property keep
         0: .line 54
            aload 0 /* keep */
            invokevirtual org.apache.fop.fo.properties.Property.isAuto:()Z
            ifeq 2
         1: .line 55
            ldc -2147483648
            ireturn
         2: .line 56
      StackMap locals:
      StackMap stack:
            aload 0 /* keep */
            invokevirtual org.apache.fop.fo.properties.Property.getEnum:()I
            bipush 7
            if_icmpne 4
         3: .line 57
            ldc 2147483647
            ireturn
         4: .line 59
      StackMap locals:
      StackMap stack:
            aload 0 /* keep */
            invokevirtual org.apache.fop.fo.properties.Property.getNumber:()Ljava/lang/Number;
            invokevirtual java.lang.Number.intValue:()I
            ireturn
        end local 0 // org.apache.fop.fo.properties.Property keep
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  keep  Lorg/apache/fop/fo/properties/Property;
    MethodParameters:
      Name  Flags
      keep  

  public static org.apache.fop.layoutmgr.Keep getKeep(org.apache.fop.fo.properties.KeepProperty);
    descriptor: (Lorg/apache/fop/fo/properties/KeepProperty;)Lorg/apache/fop/layoutmgr/Keep;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // org.apache.fop.fo.properties.KeepProperty keepProperty
         0: .line 70
            new org.apache.fop.layoutmgr.Keep
            dup
            ldc -2147483648
            bipush 9
            invokespecial org.apache.fop.layoutmgr.Keep.<init>:(II)V
            astore 1 /* keep */
        start local 1 // org.apache.fop.layoutmgr.Keep keep
         1: .line 71
            aload 1 /* keep */
            aload 0 /* keepProperty */
            invokevirtual org.apache.fop.fo.properties.KeepProperty.getWithinPage:()Lorg/apache/fop/fo/properties/Property;
            bipush 104
            invokevirtual org.apache.fop.layoutmgr.Keep.update:(Lorg/apache/fop/fo/properties/Property;I)V
         2: .line 72
            aload 1 /* keep */
            aload 0 /* keepProperty */
            invokevirtual org.apache.fop.fo.properties.KeepProperty.getWithinColumn:()Lorg/apache/fop/fo/properties/Property;
            bipush 28
            invokevirtual org.apache.fop.layoutmgr.Keep.update:(Lorg/apache/fop/fo/properties/Property;I)V
         3: .line 73
            aload 1 /* keep */
            aload 0 /* keepProperty */
            invokevirtual org.apache.fop.fo.properties.KeepProperty.getWithinLine:()Lorg/apache/fop/fo/properties/Property;
            bipush 75
            invokevirtual org.apache.fop.layoutmgr.Keep.update:(Lorg/apache/fop/fo/properties/Property;I)V
         4: .line 74
            aload 1 /* keep */
            areturn
        end local 1 // org.apache.fop.layoutmgr.Keep keep
        end local 0 // org.apache.fop.fo.properties.KeepProperty keepProperty
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    5     0  keepProperty  Lorg/apache/fop/fo/properties/KeepProperty;
            1    5     1          keep  Lorg/apache/fop/layoutmgr/Keep;
    MethodParameters:
              Name  Flags
      keepProperty  

  private void update(org.apache.fop.fo.properties.Property, int);
    descriptor: (Lorg/apache/fop/fo/properties/Property;I)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.apache.fop.layoutmgr.Keep this
        start local 1 // org.apache.fop.fo.properties.Property keep
        start local 2 // int context
         0: .line 78
            aload 1 /* keep */
            invokevirtual org.apache.fop.fo.properties.Property.isAuto:()Z
            ifne 3
         1: .line 79
            aload 0 /* this */
            aload 1 /* keep */
            invokestatic org.apache.fop.layoutmgr.Keep.getKeepStrength:(Lorg/apache/fop/fo/properties/Property;)I
            putfield org.apache.fop.layoutmgr.Keep.strength:I
         2: .line 80
            aload 0 /* this */
            iload 2 /* context */
            putfield org.apache.fop.layoutmgr.Keep.context:I
         3: .line 82
      StackMap locals:
      StackMap stack:
            return
        end local 2 // int context
        end local 1 // org.apache.fop.fo.properties.Property keep
        end local 0 // org.apache.fop.layoutmgr.Keep this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lorg/apache/fop/layoutmgr/Keep;
            0    4     1     keep  Lorg/apache/fop/fo/properties/Property;
            0    4     2  context  I
    MethodParameters:
         Name  Flags
      keep     
      context  

  public boolean isAuto();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.fop.layoutmgr.Keep this
         0: .line 86
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            ldc -2147483648
            if_icmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // org.apache.fop.layoutmgr.Keep this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/fop/layoutmgr/Keep;

  public int getContext();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.layoutmgr.Keep this
         0: .line 96
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.context:I
            ireturn
        end local 0 // org.apache.fop.layoutmgr.Keep this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/layoutmgr/Keep;

  public int getPenalty();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.fop.layoutmgr.Keep this
         0: .line 101
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            ldc -2147483648
            if_icmpne 2
         1: .line 102
            iconst_0
            ireturn
         2: .line 103
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            ldc 2147483647
            if_icmpne 4
         3: .line 104
            sipush 1000
            ireturn
         4: .line 106
      StackMap locals:
      StackMap stack:
            sipush 999
            ireturn
        end local 0 // org.apache.fop.layoutmgr.Keep this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/fop/layoutmgr/Keep;

  private static int getKeepContextPriority(int);
    descriptor: (I)I
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // int context
         0: .line 111
            iload 0 /* context */
            lookupswitch { // 4
                    9: 4
                   28: 2
                   75: 1
                  104: 3
              default: 5
          }
         1: .line 112
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
         2: .line 113
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
         3: .line 114
      StackMap locals:
      StackMap stack:
            iconst_2
            ireturn
         4: .line 115
      StackMap locals:
      StackMap stack:
            iconst_3
            ireturn
         5: .line 116
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            invokespecial java.lang.IllegalArgumentException.<init>:()V
            athrow
        end local 0 // int context
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    6     0  context  I
    MethodParameters:
         Name  Flags
      context  

  public org.apache.fop.layoutmgr.Keep compare(org.apache.fop.layoutmgr.Keep);
    descriptor: (Lorg/apache/fop/layoutmgr/Keep;)Lorg/apache/fop/layoutmgr/Keep;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=2
        start local 0 // org.apache.fop.layoutmgr.Keep this
        start local 1 // org.apache.fop.layoutmgr.Keep other
         0: .line 130
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            ldc 2147483647
            if_icmpne 3
         1: .line 131
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            aload 1 /* other */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            if_icmple 3
         2: .line 132
            aload 0 /* this */
            areturn
         3: .line 133
      StackMap locals:
      StackMap stack:
            aload 1 /* other */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            ldc 2147483647
            if_icmpne 6
         4: .line 134
            aload 1 /* other */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            if_icmple 6
         5: .line 135
            aload 1 /* other */
            areturn
         6: .line 138
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.context:I
            invokestatic org.apache.fop.layoutmgr.Keep.getKeepContextPriority:(I)I
            istore 2 /* pThis */
        start local 2 // int pThis
         7: .line 139
            aload 1 /* other */
            getfield org.apache.fop.layoutmgr.Keep.context:I
            invokestatic org.apache.fop.layoutmgr.Keep.getKeepContextPriority:(I)I
            istore 3 /* pOther */
        start local 3 // int pOther
         8: .line 142
            iload 2 /* pThis */
            iload 3 /* pOther */
            if_icmpne 12
         9: .line 143
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            aload 1 /* other */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            if_icmplt 10
            aload 0 /* this */
            goto 11
      StackMap locals: int int
      StackMap stack:
        10: aload 1 /* other */
      StackMap locals:
      StackMap stack: org.apache.fop.layoutmgr.Keep
        11: areturn
        12: .line 147
      StackMap locals:
      StackMap stack:
            iload 2 /* pThis */
            iload 3 /* pOther */
            if_icmpge 13
            aload 0 /* this */
            goto 14
      StackMap locals:
      StackMap stack:
        13: aload 1 /* other */
      StackMap locals:
      StackMap stack: org.apache.fop.layoutmgr.Keep
        14: areturn
        end local 3 // int pOther
        end local 2 // int pThis
        end local 1 // org.apache.fop.layoutmgr.Keep other
        end local 0 // org.apache.fop.layoutmgr.Keep this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   15     0    this  Lorg/apache/fop/layoutmgr/Keep;
            0   15     1   other  Lorg/apache/fop/layoutmgr/Keep;
            7   15     2   pThis  I
            8   15     3  pOther  I
    MethodParameters:
       Name  Flags
      other  

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.fop.layoutmgr.Keep this
         0: .line 152
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            ldc -2147483648
            if_icmpne 1
            ldc "auto"
            goto 3
         1: .line 153
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            ldc 2147483647
            if_icmpne 2
            ldc "always"
            goto 3
         2: .line 154
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.fop.layoutmgr.Keep.strength:I
            invokestatic java.lang.Integer.toString:(I)Ljava/lang/String;
         3: .line 152
      StackMap locals:
      StackMap stack: java.lang.String
            areturn
        end local 0 // org.apache.fop.layoutmgr.Keep this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/fop/layoutmgr/Keep;
}
SourceFile: "Keep.java"