1 [JavaClass java.util.ArrayList] 2 [JavaClass java.util.ArrayList] 3 [JavaClass java.lang.String] 4 java.lang.ClassNotFoundException: java.lang.String 5 [JavaClass java.util.ArrayList] 6 [JavaClass java.util.ArrayList] 7 [JavaClass java.lang.String] 8 [JavaPackage java.lang.String] 9 [JavaClass jdk.nashorn.javaadapters.java_util_ArrayList] 10 [JavaClass jdk.nashorn.javaadapters.java_util_ArrayList] 11 [JavaClass jdk.nashorn.javaadapters.java_io_File] 12 TypeError: Java.extend needs Java types as its arguments. in <eval> at line number 1 13 java.lang.NullPointerException 14 java.lang.ClassNotFoundException: java.lang.NullPointerException 15 java.lang.NullPointerException: library can't be null 16 java.lang.NullPointerException: library can't be null