https://www.graalvm.org/ 
interface com.oracle.mxtool.compilerserver.CompilerDaemon$Compiler
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.mxtool.compilerserver.CompilerDaemon$Compiler
  super_class: java.lang.Object
{
  public abstract int compile(java.lang.String[]);
    descriptor: ([Ljava/lang/String;)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.lang.Exception
    MethodParameters:
      Name  Flags
      args  
}
SourceFile: "CompilerDaemon.java"
NestHost: com.oracle.mxtool.compilerserver.CompilerDaemon
InnerClasses:
  abstract Compiler = com.oracle.mxtool.compilerserver.CompilerDaemon$Compiler of com.oracle.mxtool.compilerserver.CompilerDaemon