https://tomcat.apache.org/: Tomcat Connectors and HTTP parser 
public interface org.apache.coyote.UpgradeProtocol
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.apache.coyote.UpgradeProtocol
  super_class: java.lang.Object
{
  public abstract java.lang.String getHttpUpgradeName(boolean);
    descriptor: (Z)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
              Name  Flags
      isSSLEnabled  

  public abstract byte[] getAlpnIdentifier();
    descriptor: ()[B
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.String getAlpnName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract org.apache.coyote.Processor getProcessor(org.apache.tomcat.util.net.SocketWrapperBase<?>, org.apache.coyote.Adapter);
    descriptor: (Lorg/apache/tomcat/util/net/SocketWrapperBase;Lorg/apache/coyote/Adapter;)Lorg/apache/coyote/Processor;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Lorg/apache/tomcat/util/net/SocketWrapperBase<*>;Lorg/apache/coyote/Adapter;)Lorg/apache/coyote/Processor;
    MethodParameters:
               Name  Flags
      socketWrapper  
      adapter        

  public abstract org.apache.coyote.http11.upgrade.InternalHttpUpgradeHandler getInternalUpgradeHandler(org.apache.tomcat.util.net.SocketWrapperBase<?>, org.apache.coyote.Adapter, org.apache.coyote.Request);
    descriptor: (Lorg/apache/tomcat/util/net/SocketWrapperBase;Lorg/apache/coyote/Adapter;Lorg/apache/coyote/Request;)Lorg/apache/coyote/http11/upgrade/InternalHttpUpgradeHandler;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Lorg/apache/tomcat/util/net/SocketWrapperBase<*>;Lorg/apache/coyote/Adapter;Lorg/apache/coyote/Request;)Lorg/apache/coyote/http11/upgrade/InternalHttpUpgradeHandler;
    MethodParameters:
               Name  Flags
      socketWrapper  
      adapter        
      request        

  public abstract boolean accept(org.apache.coyote.Request);
    descriptor: (Lorg/apache/coyote/Request;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
         Name  Flags
      request  
}
SourceFile: "UpgradeProtocol.java"