https://openjdk.java.net/ 
public interface jdk.nashorn.api.tree.CatchTree extends jdk.nashorn.api.tree.Tree
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: jdk.nashorn.api.tree.CatchTree
  super_class: java.lang.Object
{
  public abstract jdk.nashorn.api.tree.ExpressionTree getParameter();
    descriptor: ()Ljdk/nashorn/api/tree/ExpressionTree;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract jdk.nashorn.api.tree.BlockTree getBlock();
    descriptor: ()Ljdk/nashorn/api/tree/BlockTree;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract jdk.nashorn.api.tree.ExpressionTree getCondition();
    descriptor: ()Ljdk/nashorn/api/tree/ExpressionTree;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "CatchTree.java"