public class java.util.Observable
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: java.util.Observable
  super_class: java.lang.Object
{
  private boolean changed;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private java.util.Vector<java.util.Observer> obs;
    descriptor: Ljava/util/Vector;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/util/Vector<Ljava/util/Observer;>;

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.util.Observable this
         0: .line 82
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 77
            aload 0 /* this */
            iconst_0
            putfield java.util.Observable.changed:Z
         2: .line 83
            aload 0 /* this */
            new java.util.Vector
            dup
            invokespecial java.util.Vector.<init>:()V
            putfield java.util.Observable.obs:Ljava/util/Vector;
         3: .line 84
            return
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Ljava/util/Observable;

  public synchronized void addObserver(java.util.Observer);
    descriptor: (Ljava/util/Observer;)V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.util.Observable this
        start local 1 // java.util.Observer o
         0: .line 96
            aload 1 /* o */
            ifnonnull 2
         1: .line 97
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 98
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.util.Observable.obs:Ljava/util/Vector;
            aload 1 /* o */
            invokevirtual java.util.Vector.contains:(Ljava/lang/Object;)Z
            ifne 4
         3: .line 99
            aload 0 /* this */
            getfield java.util.Observable.obs:Ljava/util/Vector;
            aload 1 /* o */
            invokevirtual java.util.Vector.addElement:(Ljava/lang/Object;)V
         4: .line 101
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.util.Observer o
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Ljava/util/Observable;
            0    5     1     o  Ljava/util/Observer;
    MethodParameters:
      Name  Flags
      o     

  public synchronized void deleteObserver(java.util.Observer);
    descriptor: (Ljava/util/Observer;)V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.util.Observable this
        start local 1 // java.util.Observer o
         0: .line 109
            aload 0 /* this */
            getfield java.util.Observable.obs:Ljava/util/Vector;
            aload 1 /* o */
            invokevirtual java.util.Vector.removeElement:(Ljava/lang/Object;)Z
            pop
         1: .line 110
            return
        end local 1 // java.util.Observer o
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/util/Observable;
            0    2     1     o  Ljava/util/Observer;
    MethodParameters:
      Name  Flags
      o     

  public void notifyObservers();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.util.Observable this
         0: .line 129
            aload 0 /* this */
            aconst_null
            invokevirtual java.util.Observable.notifyObservers:(Ljava/lang/Object;)V
         1: .line 130
            return
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/util/Observable;

  public void notifyObservers(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // java.util.Observable this
        start local 1 // java.lang.Object arg
         0: .line 153
            aload 0 /* this */
            dup
            astore 3
            monitorenter
         1: .line 166
            aload 0 /* this */
            getfield java.util.Observable.changed:Z
            ifne 4
         2: .line 167
            aload 3
            monitorexit
         3: return
         4: .line 168
      StackMap locals: java.util.Observable java.lang.Object top java.util.Observable
      StackMap stack:
            aload 0 /* this */
            getfield java.util.Observable.obs:Ljava/util/Vector;
            invokevirtual java.util.Vector.toArray:()[Ljava/lang/Object;
            astore 2 /* arrLocal */
        start local 2 // java.lang.Object[] arrLocal
         5: .line 169
            aload 0 /* this */
            invokevirtual java.util.Observable.clearChanged:()V
         6: .line 153
            aload 3
            monitorexit
         7: goto 10
        end local 2 // java.lang.Object[] arrLocal
      StackMap locals:
      StackMap stack: java.lang.Throwable
         8: aload 3
            monitorexit
         9: athrow
        start local 2 // java.lang.Object[] arrLocal
        10: .line 172
      StackMap locals: java.util.Observable java.lang.Object java.lang.Object[]
      StackMap stack:
            aload 2 /* arrLocal */
            arraylength
            iconst_1
            isub
            istore 3 /* i */
        start local 3 // int i
        11: goto 14
        12: .line 173
      StackMap locals: int
      StackMap stack:
            aload 2 /* arrLocal */
            iload 3 /* i */
            aaload
            checkcast java.util.Observer
            aload 0 /* this */
            aload 1 /* arg */
            invokeinterface java.util.Observer.update:(Ljava/util/Observable;Ljava/lang/Object;)V
        13: .line 172
            iinc 3 /* i */ -1
      StackMap locals:
      StackMap stack:
        14: iload 3 /* i */
            ifge 12
        end local 3 // int i
        15: .line 174
            return
        end local 2 // java.lang.Object[] arrLocal
        end local 1 // java.lang.Object arg
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   16     0      this  Ljava/util/Observable;
            0   16     1       arg  Ljava/lang/Object;
            5    8     2  arrLocal  [Ljava/lang/Object;
           10   16     2  arrLocal  [Ljava/lang/Object;
           11   15     3         i  I
      Exception table:
        from    to  target  type
           1     3       8  any
           4     7       8  any
           8     9       8  any
    MethodParameters:
      Name  Flags
      arg   

  public synchronized void deleteObservers();
    descriptor: ()V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.util.Observable this
         0: .line 180
            aload 0 /* this */
            getfield java.util.Observable.obs:Ljava/util/Vector;
            invokevirtual java.util.Vector.removeAllElements:()V
         1: .line 181
            return
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/util/Observable;

  protected synchronized void setChanged();
    descriptor: ()V
    flags: (0x0024) ACC_PROTECTED, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.util.Observable this
         0: .line 188
            aload 0 /* this */
            iconst_1
            putfield java.util.Observable.changed:Z
         1: .line 189
            return
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/util/Observable;

  protected synchronized void clearChanged();
    descriptor: ()V
    flags: (0x0024) ACC_PROTECTED, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.util.Observable this
         0: .line 202
            aload 0 /* this */
            iconst_0
            putfield java.util.Observable.changed:Z
         1: .line 203
            return
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/util/Observable;

  public synchronized boolean hasChanged();
    descriptor: ()Z
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.util.Observable this
         0: .line 216
            aload 0 /* this */
            getfield java.util.Observable.changed:Z
            ireturn
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/util/Observable;

  public synchronized int countObservers();
    descriptor: ()I
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.util.Observable this
         0: .line 225
            aload 0 /* this */
            getfield java.util.Observable.obs:Ljava/util/Vector;
            invokevirtual java.util.Vector.size:()I
            ireturn
        end local 0 // java.util.Observable this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/util/Observable;
}
SourceFile: "Observable.java"
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated(since = "9")