https://github.com/oracle/graal: GraalVM is an ecosystem for compiling and running applications written in multiple languages. GraalVM removes the isolation between programming languages and enables interoperability in a shared runtime. 
class org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer implements org.graalvm.polyglot.io.MessageEndpoint
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer
  super_class: java.lang.Object
{
  private final org.graalvm.polyglot.io.MessageEndpoint remoteEndpoint;
    descriptor: Lorg/graalvm/polyglot/io/MessageEndpoint;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.io.OutputStream routerOut;
    descriptor: Ljava/io/OutputStream;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.nio.channels.WritableByteChannel routerOutChannel;
    descriptor: Ljava/nio/channels/WritableByteChannel;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  final org.graalvm.polyglot.io.MessageTransportSnippets this$0;
    descriptor: Lorg/graalvm/polyglot/io/MessageTransportSnippets;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.graalvm.polyglot.io.MessageTransportSnippets, org.graalvm.polyglot.io.MessageEndpoint);
    descriptor: (Lorg/graalvm/polyglot/io/MessageTransportSnippets;Lorg/graalvm/polyglot/io/MessageEndpoint;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
        start local 2 // org.graalvm.polyglot.io.MessageEndpoint remoteEndpoint
         0: .line 130
            aload 0 /* this */
            aload 1
            putfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.this$0:Lorg/graalvm/polyglot/io/MessageTransportSnippets;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 127
            aload 0 /* this */
            aload 1
            invokevirtual org.graalvm.polyglot.io.MessageTransportSnippets.getRouterOutputStream:()Ljava/io/OutputStream;
            putfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOut:Ljava/io/OutputStream;
         2: .line 131
            aload 0 /* this */
            aload 2 /* remoteEndpoint */
            putfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.remoteEndpoint:Lorg/graalvm/polyglot/io/MessageEndpoint;
         3: .line 132
            aload 0 /* this */
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOut:Ljava/io/OutputStream;
            invokestatic java.nio.channels.Channels.newChannel:(Ljava/io/OutputStream;)Ljava/nio/channels/WritableByteChannel;
            putfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOutChannel:Ljava/nio/channels/WritableByteChannel;
         4: .line 133
            new java.lang.Thread
            dup
            aload 0 /* this */
            invokedynamic run(Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;)Ljava/lang/Runnable;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  ()V
                  org/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer.lambda$0()V (7)
                  ()V
            invokespecial java.lang.Thread.<init>:(Ljava/lang/Runnable;)V
         5: .line 138
            invokevirtual java.lang.Thread.start:()V
         6: .line 139
            return
        end local 2 // org.graalvm.polyglot.io.MessageEndpoint remoteEndpoint
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    7     0            this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
            0    7     2  remoteEndpoint  Lorg/graalvm/polyglot/io/MessageEndpoint;
    MethodParameters:
                Name  Flags
      this$0          final
      remoteEndpoint  

  public void sendText(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
        start local 1 // java.lang.String text
         0: .line 143
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOut:Ljava/io/OutputStream;
            aload 1 /* text */
            invokevirtual java.lang.String.getBytes:()[B
            invokevirtual java.io.OutputStream.write:([B)V
         1: .line 144
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOut:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.flush:()V
         2: .line 145
            return
        end local 1 // java.lang.String text
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
            0    3     1  text  Ljava/lang/String;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      text  

  public void sendBinary(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
        start local 1 // java.nio.ByteBuffer data
         0: .line 149
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOutChannel:Ljava/nio/channels/WritableByteChannel;
            aload 1 /* data */
            invokeinterface java.nio.channels.WritableByteChannel.write:(Ljava/nio/ByteBuffer;)I
            pop
         1: .line 150
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOut:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.flush:()V
         2: .line 151
            return
        end local 1 // java.nio.ByteBuffer data
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
            0    3     1  data  Ljava/nio/ByteBuffer;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      data  

  public void sendPing(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
        start local 1 // java.nio.ByteBuffer data
         0: .line 155
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.remoteEndpoint:Lorg/graalvm/polyglot/io/MessageEndpoint;
            aload 1 /* data */
            invokeinterface org.graalvm.polyglot.io.MessageEndpoint.sendPong:(Ljava/nio/ByteBuffer;)V
         1: .line 156
            return
        end local 1 // java.nio.ByteBuffer data
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
            0    2     1  data  Ljava/nio/ByteBuffer;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      data  

  public void sendPong(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=2, args_size=2
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
        start local 1 // java.nio.ByteBuffer data
         0: .line 161
            return
        end local 1 // java.nio.ByteBuffer data
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
            0    1     1  data  Ljava/nio/ByteBuffer;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      data  

  public void sendClose();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
         0: .line 165
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.routerOut:Ljava/io/OutputStream;
            invokevirtual java.io.OutputStream.close:()V
         1: .line 166
            return
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
    Exceptions:
      throws java.io.IOException

  private void runInputLoop();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=8, args_size=1
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
         0: .line 169
            aconst_null
            astore 1
            aconst_null
            astore 2
         1: aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.this$0:Lorg/graalvm/polyglot/io/MessageTransportSnippets;
            invokevirtual org.graalvm.polyglot.io.MessageTransportSnippets.getRouterInputStream:()Ljava/io/InputStream;
            astore 3 /* routerIn */
        start local 3 // java.io.InputStream routerIn
         2: .line 170
            sipush 1024
            newarray 8
            astore 4 /* buf */
        start local 4 // byte[] buf
         3: .line 171
            aload 4 /* buf */
            invokestatic java.nio.ByteBuffer.wrap:([B)Ljava/nio/ByteBuffer;
            astore 5 /* bb */
        start local 5 // java.nio.ByteBuffer bb
         4: .line 173
            goto 8
        start local 6 // int l
         5: .line 174
      StackMap locals: org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer java.lang.Throwable java.lang.Throwable java.io.InputStream byte[] java.nio.ByteBuffer int
      StackMap stack:
            aload 5 /* bb */
            iload 6 /* l */
            invokevirtual java.nio.ByteBuffer.limit:(I)Ljava/nio/Buffer;
            pop
         6: .line 175
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.remoteEndpoint:Lorg/graalvm/polyglot/io/MessageEndpoint;
            aload 5 /* bb */
            invokeinterface org.graalvm.polyglot.io.MessageEndpoint.sendBinary:(Ljava/nio/ByteBuffer;)V
         7: .line 176
            aload 5 /* bb */
            invokevirtual java.nio.ByteBuffer.rewind:()Ljava/nio/Buffer;
            pop
        end local 6 // int l
         8: .line 173
      StackMap locals:
      StackMap stack:
            aload 3 /* routerIn */
            aload 4 /* buf */
            invokevirtual java.io.InputStream.read:([B)I
            dup
            istore 6 /* l */
        start local 6 // int l
         9: ifgt 5
        end local 6 // int l
        end local 5 // java.nio.ByteBuffer bb
        end local 4 // byte[] buf
        10: .line 178
            aload 3 /* routerIn */
            ifnull 19
            aload 3 /* routerIn */
            invokevirtual java.io.InputStream.close:()V
            goto 19
      StackMap locals: org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer java.lang.Throwable java.lang.Throwable java.io.InputStream
      StackMap stack: java.lang.Throwable
        11: astore 1
            aload 3 /* routerIn */
            ifnull 12
            aload 3 /* routerIn */
            invokevirtual java.io.InputStream.close:()V
        end local 3 // java.io.InputStream routerIn
      StackMap locals:
      StackMap stack:
        12: aload 1
            athrow
      StackMap locals:
      StackMap stack: java.lang.Throwable
        13: astore 2
            aload 1
            ifnonnull 14
            aload 2
            astore 1
            goto 15
      StackMap locals:
      StackMap stack:
        14: aload 1
            aload 2
            if_acmpeq 15
            aload 1
            aload 2
            invokevirtual java.lang.Throwable.addSuppressed:(Ljava/lang/Throwable;)V
      StackMap locals:
      StackMap stack:
        15: aload 1
            athrow
      StackMap locals: org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer
      StackMap stack: java.lang.Throwable
        16: astore 7
        17: .line 179
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.remoteEndpoint:Lorg/graalvm/polyglot/io/MessageEndpoint;
            invokeinterface org.graalvm.polyglot.io.MessageEndpoint.sendClose:()V
        18: .line 180
            aload 7
            athrow
        19: .line 179
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.remoteEndpoint:Lorg/graalvm/polyglot/io/MessageEndpoint;
            invokeinterface org.graalvm.polyglot.io.MessageEndpoint.sendClose:()V
        20: .line 181
            return
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   21     0      this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
            2   12     3  routerIn  Ljava/io/InputStream;
            3   10     4       buf  [B
            4   10     5        bb  Ljava/nio/ByteBuffer;
            5    8     6         l  I
            9   10     6         l  I
      Exception table:
        from    to  target  type
           2    10      11  any
           1    13      13  any
           0    16      16  any
    Exceptions:
      throws java.io.IOException

  private void lambda$0();
    descriptor: ()V
    flags: (0x1002) ACC_PRIVATE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
         0: .line 135
            aload 0 /* this */
            invokevirtual org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer.runInputLoop:()V
         1: .line 136
            goto 3
      StackMap locals:
      StackMap stack: java.io.IOException
         2: pop
         3: .line 138
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/graalvm/polyglot/io/MessageTransportSnippets$1RoutedServer;
      Exception table:
        from    to  target  type
           0     1       2  Class java.io.IOException
}
SourceFile: "MessageTransport.java"
EnclosingMethod: org.graalvm.polyglot.io.MessageTransportSnippets.example:()V
NestHost: org.graalvm.polyglot.io.MessageTransportSnippets
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles
  RoutedServer = org.graalvm.polyglot.io.MessageTransportSnippets$1RoutedServer