https://openjdk.java.net/ 
interface sun.security.ssl.SSLPossessionGenerator
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.security.ssl.SSLPossessionGenerator
  super_class: java.lang.Object
{
  public abstract sun.security.ssl.SSLPossession createPossession(sun.security.ssl.HandshakeContext);
    descriptor: (Lsun/security/ssl/HandshakeContext;)Lsun/security/ssl/SSLPossession;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
                  Name  Flags
      handshakeContext  
}
SourceFile: "SSLPossessionGenerator.java"