https://www.graalvm.org/ 
public interface org.graalvm.tools.insight.test.InsightAPI$OnEventHandler$Context
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.graalvm.tools.insight.test.InsightAPI$OnEventHandler$Context
  super_class: java.lang.Object
{
  public abstract java.lang.String name();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract org.graalvm.tools.insight.test.InsightAPI$SourceInfo source();
    descriptor: ()Lorg/graalvm/tools/insight/test/InsightAPI$SourceInfo;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

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

  public abstract int line();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int startLine();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int endLine();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int column();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int startColumn();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int endColumn();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract  returnValue(java.util.Map<java.lang.String, java.lang.Object>);
    descriptor: (Ljava/util/Map;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;)Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      frame  

  public abstract void returnNow(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      value  
}
SourceFile: "InsightAPI.java"
NestHost: org.graalvm.tools.insight.test.InsightAPI
InnerClasses:
  public abstract OnEventHandler = org.graalvm.tools.insight.test.InsightAPI$OnEventHandler of org.graalvm.tools.insight.test.InsightAPI
  public abstract Context = org.graalvm.tools.insight.test.InsightAPI$OnEventHandler$Context of org.graalvm.tools.insight.test.InsightAPI$OnEventHandler
  public abstract SourceInfo = org.graalvm.tools.insight.test.InsightAPI$SourceInfo of org.graalvm.tools.insight.test.InsightAPI