Name: sgC58550 Date: 03/18/97


According to the Core Reflection API documentation, the
following should chuck an IllegalAccessException:

class Z {
 static void doIt (Class c) {
        try {
         c.newInstance(); // create instance of inaccessible class
        }
        catch (Exception e) {
        }
    }
}

public class B {
    private class A {
    }

    static Class getPrivateClass () {
     return A.class;
    }

    public static void main (String[] args) {
        Z.doIt(getPrivateClass());
    }
}

However this incorrectly raises a NoSuchMethodError.
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Name: tb29552 Date: 03/18/2000


java version "1.2.2"
Classic VM (build JDK-1.2.2-W, native threads, symcjit)

Class.newInstance won't instantiate an inner class.

In this code outerFoo is not an inner class and can be instantiated
via new and Class.newInstance. innerFoo is an inner class that
can be instantiated with new, but Class.newInstance fails with an
InstantiationException.

import java.lang.Class.*;

class outerFoo { };

class newInstanceBug {

public class innerFoo { }

  static void main(String args[]) {
newInstanceBug nib = new newInstanceBug();
nib.doIt();
   }
  
  void doIt() {
   try {
   Object o = new outerFoo();
System.out.println("got outerFoo");

o = new innerFoo();
System.out.println("got innerFoo");

o = outerFoo.class.newInstance();
System.out.println("got outerFoo again");

o = innerFoo.class.newInstance();
System.out.println("got innerFoo again");
   } catch (InstantiationException ie) {
   ie.printStackTrace();
   } catch (IllegalAccessException iae) {
   iae.printStackTrace();
   }
}


}



C:\>\jdk1.2.2\bin\java -cp . newInstanceBug
got outerFoo
got innerFoo
got outerFoo again
java.lang.InstantiationException: newInstanceBug$innerFoo
        at java.lang.Class.newInstance0(Native Method)
        at java.lang.Class.newInstance(Class.java:241)
        at newInstanceBug.doIt(newInstanceBug.java:25)
        at newInstanceBug.main(newInstanceBug.java:11)
(Review ID: 100912)
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