http://grizzly.java.net/grizzly-npn-bootstrap: Eclipse Enterprise for Java (EE4J) is an open source initiative to create standard APIs, implementations of those APIs, and technology compatibility kits for Java runtimes that enable development, deployment, and management of server-side and cloud-native applications. (Oracle Corporation) 
final class sun.security.ssl.AlpnExtension
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: sun.security.ssl.AlpnExtension
  super_class: java.lang.Object
{
  private static final java.lang.String ALPN_TO_STRING_MSG;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "Application Layer Protocol Extension (ALPN) [0x%x/%d], client protocols: %s, selected protocol: %s, serialized data: %s"

  static final int ID;
    descriptor: I
    flags: (0x0018) ACC_STATIC, ACC_FINAL
    ConstantValue: 16

  static final java.lang.String NAME;
    descriptor: Ljava/lang/String;
    flags: (0x0018) ACC_STATIC, ACC_FINAL
    ConstantValue: "alpn"

  java.lang.String selectedProtocol;
    descriptor: Ljava/lang/String;
    flags: (0x0000) 

  java.lang.String[] protocols;
    descriptor: [Ljava/lang/String;
    flags: (0x0000) 

  byte[] outData;
    descriptor: [B
    flags: (0x0000) 

  void <init>(sun.security.ssl.ExtensionType);
    descriptor: (Lsun/security/ssl/ExtensionType;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // sun.security.ssl.AlpnExtension this
         0: .line 25
            new java.lang.Error
            dup
            ldc "Unresolved compilation problems: \n\tHelloExtension cannot be resolved to a type\n\tThe method length() of type AlpnExtension must override or implement a supertype method\n\tThe method send(HandshakeOutStream) of type AlpnExtension must override or implement a supertype method\n\tThe method toString() of type AlpnExtension must override or implement a supertype method\n\tDebug cannot be resolved\n\tHandshakeInStream cannot be resolved to a type\n\tHandshakeInStream cannot be resolved to a type\n\tHandshakeInStream cannot be resolved to a type\n\tHandshakeInStream cannot be resolved to a type\n\tHandshakeInStream cannot be resolved to a type\n\tHandshakeInStream cannot be resolved to a type\n\tHandshakeInStream cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // sun.security.ssl.AlpnExtension this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/security/ssl/AlpnExtension;
    MethodParameters:
               Name  Flags
      extensionType  

  int length();
    descriptor: ()I
    flags: (0x0000) 
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // sun.security.ssl.AlpnExtension this
         0: .line 44
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tThe method length() of type AlpnExtension must override or implement a supertype method\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // sun.security.ssl.AlpnExtension this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/security/ssl/AlpnExtension;

  void send(sun.security.ssl.HandshakeOutStream);
    descriptor: (Lsun/security/ssl/HandshakeOutStream;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // sun.security.ssl.AlpnExtension this
         0: .line 54
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tThe method send(HandshakeOutStream) of type AlpnExtension must override or implement a supertype method\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // sun.security.ssl.AlpnExtension this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/security/ssl/AlpnExtension;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
                    Name  Flags
      handshakeOutStream  

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // sun.security.ssl.AlpnExtension this
         0: .line 62
            new java.lang.Error
            dup
            ldc "Unresolved compilation problems: \n\tThe method toString() of type AlpnExtension must override or implement a supertype method\n\tDebug cannot be resolved\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // sun.security.ssl.AlpnExtension this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/security/ssl/AlpnExtension;

  static sun.security.ssl.AlpnExtension$Builder builder();
    descriptor: ()Lsun/security/ssl/AlpnExtension$Builder;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 71
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "AlpnExtension.java"
NestMembers:
  sun.security.ssl.AlpnExtension$Builder
InnerClasses:
  final Builder = sun.security.ssl.AlpnExtension$Builder of sun.security.ssl.AlpnExtension