public class java.awt.HeadlessException extends java.lang.UnsupportedOperationException
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: java.awt.HeadlessException
  super_class: java.lang.UnsupportedOperationException
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 167183644944358563

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.awt.HeadlessException this
         0: .line 41
            aload 0 /* this */
            invokespecial java.lang.UnsupportedOperationException.<init>:()V
            return
        end local 0 // java.awt.HeadlessException this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/awt/HeadlessException;

  public void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.awt.HeadlessException this
        start local 1 // java.lang.String msg
         0: .line 43
            aload 0 /* this */
            aload 1 /* msg */
            invokespecial java.lang.UnsupportedOperationException.<init>:(Ljava/lang/String;)V
         1: .line 44
            return
        end local 1 // java.lang.String msg
        end local 0 // java.awt.HeadlessException this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/awt/HeadlessException;
            0    2     1   msg  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      msg   

  public java.lang.String getMessage();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // java.awt.HeadlessException this
         0: .line 46
            aload 0 /* this */
            invokespecial java.lang.UnsupportedOperationException.getMessage:()Ljava/lang/String;
            astore 1 /* superMessage */
        start local 1 // java.lang.String superMessage
         1: .line 47
            invokestatic java.awt.GraphicsEnvironment.getHeadlessMessage:()Ljava/lang/String;
            astore 2 /* headlessMessage */
        start local 2 // java.lang.String headlessMessage
         2: .line 49
            aload 1 /* superMessage */
            ifnonnull 4
         3: .line 50
            aload 2 /* headlessMessage */
            areturn
         4: .line 51
      StackMap locals: java.lang.String java.lang.String
      StackMap stack:
            aload 2 /* headlessMessage */
            ifnonnull 6
         5: .line 52
            aload 1 /* superMessage */
            areturn
         6: .line 54
      StackMap locals:
      StackMap stack:
            new java.lang.StringBuilder
            dup
            aload 1 /* superMessage */
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 2 /* headlessMessage */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 2 // java.lang.String headlessMessage
        end local 1 // java.lang.String superMessage
        end local 0 // java.awt.HeadlessException this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    7     0             this  Ljava/awt/HeadlessException;
            1    7     1     superMessage  Ljava/lang/String;
            2    7     2  headlessMessage  Ljava/lang/String;
}
SourceFile: "HeadlessException.java"