https://openjdk.java.net/ 
interface org.graalvm.compiler.core.test.CountedLoopTest$IVPredicate
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.graalvm.compiler.core.test.CountedLoopTest$IVPredicate
  super_class: java.lang.Object
{
  public abstract boolean test(org.graalvm.compiler.loop.InductionVariable);
    descriptor: (Lorg/graalvm/compiler/loop/InductionVariable;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      iv    
}
SourceFile: "CountedLoopTest.java"
NestHost: org.graalvm.compiler.core.test.CountedLoopTest
InnerClasses:
  private abstract IVPredicate = org.graalvm.compiler.core.test.CountedLoopTest$IVPredicate of org.graalvm.compiler.core.test.CountedLoopTest
    RuntimeVisibleAnnotations: 
      java.lang.FunctionalInterface()