http://www.joda.org/joda-time/: Date and time library to replace JDK date handling (Joda.org) 
public abstract class org.joda.time.base.AbstractDuration implements org.joda.time.ReadableDuration
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.joda.time.base.AbstractDuration
  super_class: java.lang.Object
{
  protected void <init>();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.joda.time.base.AbstractDuration this
         0: .line 44
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 45
            return
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/joda/time/base/AbstractDuration;

  public org.joda.time.Duration toDuration();
    descriptor: ()Lorg/joda/time/Duration;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.joda.time.base.AbstractDuration this
         0: .line 54
            new org.joda.time.Duration
            dup
            aload 0 /* this */
            invokevirtual org.joda.time.base.AbstractDuration.getMillis:()J
            invokespecial org.joda.time.Duration.<init>:(J)V
            areturn
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/joda/time/base/AbstractDuration;

  public org.joda.time.Period toPeriod();
    descriptor: ()Lorg/joda/time/Period;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.joda.time.base.AbstractDuration this
         0: .line 80
            new org.joda.time.Period
            dup
            aload 0 /* this */
            invokevirtual org.joda.time.base.AbstractDuration.getMillis:()J
            invokespecial org.joda.time.Period.<init>:(J)V
            areturn
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/joda/time/base/AbstractDuration;

  public int compareTo(org.joda.time.ReadableDuration);
    descriptor: (Lorg/joda/time/ReadableDuration;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=6, args_size=2
        start local 0 // org.joda.time.base.AbstractDuration this
        start local 1 // org.joda.time.ReadableDuration other
         0: .line 96
            aload 0 /* this */
            invokevirtual org.joda.time.base.AbstractDuration.getMillis:()J
            lstore 2 /* thisMillis */
        start local 2 // long thisMillis
         1: .line 97
            aload 1 /* other */
            invokeinterface org.joda.time.ReadableDuration.getMillis:()J
            lstore 4 /* otherMillis */
        start local 4 // long otherMillis
         2: .line 100
            lload 2 /* thisMillis */
            lload 4 /* otherMillis */
            lcmp
            ifge 4
         3: .line 101
            iconst_m1
            ireturn
         4: .line 103
      StackMap locals: long long
      StackMap stack:
            lload 2 /* thisMillis */
            lload 4 /* otherMillis */
            lcmp
            ifle 6
         5: .line 104
            iconst_1
            ireturn
         6: .line 106
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        end local 4 // long otherMillis
        end local 2 // long thisMillis
        end local 1 // org.joda.time.ReadableDuration other
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    7     0         this  Lorg/joda/time/base/AbstractDuration;
            0    7     1        other  Lorg/joda/time/ReadableDuration;
            1    7     2   thisMillis  J
            2    7     4  otherMillis  J
    MethodParameters:
       Name  Flags
      other  

  public boolean isEqual(org.joda.time.ReadableDuration);
    descriptor: (Lorg/joda/time/ReadableDuration;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.joda.time.base.AbstractDuration this
        start local 1 // org.joda.time.ReadableDuration duration
         0: .line 119
            aload 1 /* duration */
            ifnonnull 2
         1: .line 120
            getstatic org.joda.time.Duration.ZERO:Lorg/joda/time/Duration;
            astore 1 /* duration */
         2: .line 122
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* duration */
            invokevirtual org.joda.time.base.AbstractDuration.compareTo:(Lorg/joda/time/ReadableDuration;)I
            ifne 3
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         3: iconst_0
            ireturn
        end local 1 // org.joda.time.ReadableDuration duration
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lorg/joda/time/base/AbstractDuration;
            0    4     1  duration  Lorg/joda/time/ReadableDuration;
    MethodParameters:
          Name  Flags
      duration  

  public boolean isLongerThan(org.joda.time.ReadableDuration);
    descriptor: (Lorg/joda/time/ReadableDuration;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.joda.time.base.AbstractDuration this
        start local 1 // org.joda.time.ReadableDuration duration
         0: .line 135
            aload 1 /* duration */
            ifnonnull 2
         1: .line 136
            getstatic org.joda.time.Duration.ZERO:Lorg/joda/time/Duration;
            astore 1 /* duration */
         2: .line 138
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* duration */
            invokevirtual org.joda.time.base.AbstractDuration.compareTo:(Lorg/joda/time/ReadableDuration;)I
            ifle 3
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         3: iconst_0
            ireturn
        end local 1 // org.joda.time.ReadableDuration duration
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lorg/joda/time/base/AbstractDuration;
            0    4     1  duration  Lorg/joda/time/ReadableDuration;
    MethodParameters:
          Name  Flags
      duration  

  public boolean isShorterThan(org.joda.time.ReadableDuration);
    descriptor: (Lorg/joda/time/ReadableDuration;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.joda.time.base.AbstractDuration this
        start local 1 // org.joda.time.ReadableDuration duration
         0: .line 151
            aload 1 /* duration */
            ifnonnull 2
         1: .line 152
            getstatic org.joda.time.Duration.ZERO:Lorg/joda/time/Duration;
            astore 1 /* duration */
         2: .line 154
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* duration */
            invokevirtual org.joda.time.base.AbstractDuration.compareTo:(Lorg/joda/time/ReadableDuration;)I
            ifge 3
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         3: iconst_0
            ireturn
        end local 1 // org.joda.time.ReadableDuration duration
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lorg/joda/time/base/AbstractDuration;
            0    4     1  duration  Lorg/joda/time/ReadableDuration;
    MethodParameters:
          Name  Flags
      duration  

  public boolean equals(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // org.joda.time.base.AbstractDuration this
        start local 1 // java.lang.Object duration
         0: .line 169
            aload 0 /* this */
            aload 1 /* duration */
            if_acmpne 2
         1: .line 170
            iconst_1
            ireturn
         2: .line 172
      StackMap locals:
      StackMap stack:
            aload 1 /* duration */
            instanceof org.joda.time.ReadableDuration
            ifne 4
         3: .line 173
            iconst_0
            ireturn
         4: .line 175
      StackMap locals:
      StackMap stack:
            aload 1 /* duration */
            checkcast org.joda.time.ReadableDuration
            astore 2 /* other */
        start local 2 // org.joda.time.ReadableDuration other
         5: .line 176
            aload 0 /* this */
            invokevirtual org.joda.time.base.AbstractDuration.getMillis:()J
            aload 2 /* other */
            invokeinterface org.joda.time.ReadableDuration.getMillis:()J
            lcmp
            ifne 6
            iconst_1
            ireturn
      StackMap locals: org.joda.time.ReadableDuration
      StackMap stack:
         6: iconst_0
            ireturn
        end local 2 // org.joda.time.ReadableDuration other
        end local 1 // java.lang.Object duration
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    7     0      this  Lorg/joda/time/base/AbstractDuration;
            0    7     1  duration  Ljava/lang/Object;
            5    7     2     other  Lorg/joda/time/ReadableDuration;
    MethodParameters:
          Name  Flags
      duration  

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=1
        start local 0 // org.joda.time.base.AbstractDuration this
         0: .line 186
            aload 0 /* this */
            invokevirtual org.joda.time.base.AbstractDuration.getMillis:()J
            lstore 1 /* len */
        start local 1 // long len
         1: .line 187
            lload 1 /* len */
            lload 1 /* len */
            bipush 32
            lushr
            lxor
            l2i
            ireturn
        end local 1 // long len
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/joda/time/base/AbstractDuration;
            1    2     1   len  J

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=1
        start local 0 // org.joda.time.base.AbstractDuration this
         0: .line 204
            aload 0 /* this */
            invokevirtual org.joda.time.base.AbstractDuration.getMillis:()J
            lstore 1 /* millis */
        start local 1 // long millis
         1: .line 205
            new java.lang.StringBuffer
            dup
            invokespecial java.lang.StringBuffer.<init>:()V
            astore 3 /* buf */
        start local 3 // java.lang.StringBuffer buf
         2: .line 206
            aload 3 /* buf */
            ldc "PT"
            invokevirtual java.lang.StringBuffer.append:(Ljava/lang/String;)Ljava/lang/StringBuffer;
            pop
         3: .line 207
            lload 1 /* millis */
            lconst_0
            lcmp
            ifge 4
            iconst_1
            goto 5
      StackMap locals: long java.lang.StringBuffer
      StackMap stack:
         4: iconst_0
      StackMap locals:
      StackMap stack: int
         5: istore 4 /* negative */
        start local 4 // boolean negative
         6: .line 208
            aload 3 /* buf */
            lload 1 /* millis */
            invokestatic org.joda.time.format.FormatUtils.appendUnpaddedInteger:(Ljava/lang/StringBuffer;J)V
         7: .line 209
            goto 11
         8: .line 210
      StackMap locals: int
      StackMap stack:
            aload 3 /* buf */
            iload 4 /* negative */
            ifeq 9
            iconst_3
            goto 10
      StackMap locals:
      StackMap stack: java.lang.StringBuffer
         9: iconst_2
      StackMap locals: org.joda.time.base.AbstractDuration long java.lang.StringBuffer int
      StackMap stack: java.lang.StringBuffer int
        10: ldc "0"
            invokevirtual java.lang.StringBuffer.insert:(ILjava/lang/String;)Ljava/lang/StringBuffer;
            pop
        11: .line 209
      StackMap locals:
      StackMap stack:
            aload 3 /* buf */
            invokevirtual java.lang.StringBuffer.length:()I
            iload 4 /* negative */
            ifeq 12
            bipush 7
            goto 13
      StackMap locals:
      StackMap stack: int
        12: bipush 6
      StackMap locals: org.joda.time.base.AbstractDuration long java.lang.StringBuffer int
      StackMap stack: int int
        13: if_icmplt 8
        14: .line 212
            lload 1 /* millis */
            ldc 1000
            ldiv
            ldc 1000
            lmul
            lload 1 /* millis */
            lcmp
            ifne 17
        15: .line 213
            aload 3 /* buf */
            aload 3 /* buf */
            invokevirtual java.lang.StringBuffer.length:()I
            iconst_3
            isub
            invokevirtual java.lang.StringBuffer.setLength:(I)V
        16: .line 214
            goto 18
        17: .line 215
      StackMap locals:
      StackMap stack:
            aload 3 /* buf */
            aload 3 /* buf */
            invokevirtual java.lang.StringBuffer.length:()I
            iconst_3
            isub
            ldc "."
            invokevirtual java.lang.StringBuffer.insert:(ILjava/lang/String;)Ljava/lang/StringBuffer;
            pop
        18: .line 217
      StackMap locals:
      StackMap stack:
            aload 3 /* buf */
            bipush 83
            invokevirtual java.lang.StringBuffer.append:(C)Ljava/lang/StringBuffer;
            pop
        19: .line 218
            aload 3 /* buf */
            invokevirtual java.lang.StringBuffer.toString:()Ljava/lang/String;
            areturn
        end local 4 // boolean negative
        end local 3 // java.lang.StringBuffer buf
        end local 1 // long millis
        end local 0 // org.joda.time.base.AbstractDuration this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   20     0      this  Lorg/joda/time/base/AbstractDuration;
            1   20     1    millis  J
            2   20     3       buf  Ljava/lang/StringBuffer;
            6   20     4  negative  Z
    RuntimeVisibleAnnotations: 
      org.joda.convert.ToString()

  public int compareTo(java.lang.Object);
    descriptor: (Ljava/lang/Object;)I
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast org.joda.time.ReadableDuration
            invokevirtual org.joda.time.base.AbstractDuration.compareTo:(Lorg/joda/time/ReadableDuration;)I
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "AbstractDuration.java"