https://openjdk.java.net/ 
class sun.awt.X11.XEmbedCanvasPeer$6 implements java.lang.Runnable
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: sun.awt.X11.XEmbedCanvasPeer$6
  super_class: java.lang.Object
{
  final sun.awt.X11.XEmbedCanvasPeer this$0;
    descriptor: Lsun/awt/X11/XEmbedCanvasPeer;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final long val$keysym;
    descriptor: J
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final long val$modifiers;
    descriptor: J
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final long val$accel_id;
    descriptor: J
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(sun.awt.X11.XEmbedCanvasPeer, long, long, long);
    descriptor: (Lsun/awt/X11/XEmbedCanvasPeer;JJJ)V
    flags: (0x0000) 
    Code:
      stack=3, locals=8, args_size=5
        start local 0 // sun.awt.X11.XEmbedCanvasPeer$6 this
         0: .line 532
            aload 0 /* this */
            aload 1
            putfield sun.awt.X11.XEmbedCanvasPeer$6.this$0:Lsun/awt/X11/XEmbedCanvasPeer;
            aload 0 /* this */
            lload 2
            putfield sun.awt.X11.XEmbedCanvasPeer$6.val$keysym:J
            aload 0 /* this */
            lload 4
            putfield sun.awt.X11.XEmbedCanvasPeer$6.val$modifiers:J
            aload 0 /* this */
            lload 6
            putfield sun.awt.X11.XEmbedCanvasPeer$6.val$accel_id:J
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // sun.awt.X11.XEmbedCanvasPeer$6 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/awt/X11/XEmbedCanvasPeer$6;
    MethodParameters:
               Name  Flags
      this$0         final
      val$keysym     final
      val$modifiers  final
      val$accel_id   final

  public void run();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=1
        start local 0 // sun.awt.X11.XEmbedCanvasPeer$6 this
         0: .line 534
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.this$0:Lsun/awt/X11/XEmbedCanvasPeer;
            getfield sun.awt.X11.XEmbedCanvasPeer.xembed:Lsun/awt/X11/XEmbedCanvasPeer$XEmbedServer;
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.val$keysym:J
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.val$modifiers:J
            invokevirtual sun.awt.X11.XEmbedCanvasPeer$XEmbedServer.getKeyStrokeForKeySym:(JJ)Ljava/awt/AWTKeyStroke;
            astore 1 /* stroke */
        start local 1 // java.awt.AWTKeyStroke stroke
         1: .line 535
            aload 1 /* stroke */
            ifnull 11
         2: .line 536
            getstatic sun.awt.X11.XEmbedCanvasPeer.xembedLog:Lsun/util/logging/PlatformLogger;
            getstatic sun.util.logging.PlatformLogger$Level.FINE:Lsun/util/logging/PlatformLogger$Level;
            invokevirtual sun.util.logging.PlatformLogger.isLoggable:(Lsun/util/logging/PlatformLogger$Level;)Z
            ifeq 4
         3: .line 537
            getstatic sun.awt.X11.XEmbedCanvasPeer.xembedLog:Lsun/util/logging/PlatformLogger;
            new java.lang.StringBuilder
            dup
            ldc "Registering accelerator "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.val$accel_id:J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            ldc " for "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 1 /* stroke */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokevirtual sun.util.logging.PlatformLogger.fine:(Ljava/lang/String;)V
         4: .line 539
      StackMap locals: java.awt.AWTKeyStroke
      StackMap stack:
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.this$0:Lsun/awt/X11/XEmbedCanvasPeer;
            getfield sun.awt.X11.XEmbedCanvasPeer.ACCEL_LOCK:Ljava/lang/Object;
            dup
            astore 2
            monitorenter
         5: .line 540
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.this$0:Lsun/awt/X11/XEmbedCanvasPeer;
            getfield sun.awt.X11.XEmbedCanvasPeer.accelerators:Ljava/util/Map;
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.val$accel_id:J
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            aload 1 /* stroke */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         6: .line 541
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.this$0:Lsun/awt/X11/XEmbedCanvasPeer;
            getfield sun.awt.X11.XEmbedCanvasPeer.accel_lookup:Ljava/util/Map;
            aload 1 /* stroke */
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.val$accel_id:J
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         7: .line 539
            aload 2
            monitorexit
         8: goto 11
      StackMap locals: sun.awt.X11.XEmbedCanvasPeer$6 java.awt.AWTKeyStroke java.lang.Object
      StackMap stack: java.lang.Throwable
         9: aload 2
            monitorexit
        10: athrow
        11: .line 544
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield sun.awt.X11.XEmbedCanvasPeer$6.this$0:Lsun/awt/X11/XEmbedCanvasPeer;
            aload 1 /* stroke */
            invokevirtual sun.awt.X11.XEmbedCanvasPeer.propogateRegisterAccelerator:(Ljava/awt/AWTKeyStroke;)V
        12: .line 545
            return
        end local 1 // java.awt.AWTKeyStroke stroke
        end local 0 // sun.awt.X11.XEmbedCanvasPeer$6 this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   13     0    this  Lsun/awt/X11/XEmbedCanvasPeer$6;
            1   13     1  stroke  Ljava/awt/AWTKeyStroke;
      Exception table:
        from    to  target  type
           5     8       9  any
           9    10       9  any
}
SourceFile: "XEmbedCanvasPeer.java"
EnclosingMethod: sun.awt.X11.XEmbedCanvasPeer.registerAccelerator:(JJJ)V
NestHost: sun.awt.X11.XEmbedCanvasPeer
InnerClasses:
  sun.awt.X11.XEmbedCanvasPeer$6
  XEmbedServer = sun.awt.X11.XEmbedCanvasPeer$XEmbedServer of sun.awt.X11.XEmbedCanvasPeer
  public final Level = sun.util.logging.PlatformLogger$Level of sun.util.logging.PlatformLogger