test/hotspot/jtreg/runtime/6626217/bug_21227.java

rev 49574 : 8201430: [TESTBUG] Remove script from runtime/6626217

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -20,34 +20,48 @@
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 
+/**
+ * @test
+ * @bug 6626217
+ * @summary Loader-constraint table allows arrays instead of only the base-classes
+ * @library /test/lib
+ * @compile bug_21227.java from_loader2.java
+ * @run driver ClassFileInstaller from_loader2
+ * @compile impl2/many_loader.java
+ * @run driver ClassFileInstaller many_loader
+ * @compile many_loader.java
+ * @run main/othervm -Xverify -Xint bug_21227
+ */
+
 import java.lang.reflect.*;
 import java.security.*;
 
 abstract public class bug_21227 {
 
-  // Jam anything you want in here, it will be cast to a You_Have_Been_P0wned
+    // Jam anything you want in here, it will be cast to a You_Have_Been_P0wned.
   public static Object _p0wnee;
 
   public static void main(String argv[]) throws ClassNotFoundException, InstantiationException, IllegalAccessException {
+        try {
     System.out.println("Warmup");
 
-    // Make a Class 'many_loader' under the default loader
+            // Make a Class 'many_loader' under the default loader.
     bug_21227 bug = new many_loader();
 
-    // Some classes under a new Loader, LOADER2, including another version of 'many_loader'
+            // Some classes under a new Loader, LOADER2, including another version of 'many_loader'.
     ClassLoader LOADER2 = new Loader2();
     Class clazz2 = LOADER2.loadClass("from_loader2");
     IFace iface = (IFace)clazz2.newInstance();
 
-    // Set the victim, a String of length 6
+            // Set the victim, a String of length 6.
     String s = "victim";
     _p0wnee = s;
 
-    // Go cast '_p0wnee' to type You_Have_Been_P0wned
+            // Go cast '_p0wnee' to type You_Have_Been_P0wned.
     many_loader[] x2 = bug.make(iface);
 
     many_loader b = x2[0];
 
     // Make it clear that the runtime type many_loader (what we get from the

@@ -57,28 +71,36 @@
     Class cl2 = many_loader.class;
     ClassLoader ld2 = cl2.getClassLoader();
     System.out.println("bug.make()  "+ld1+":"+cl1);
     System.out.println("many_loader "+ld2+":"+cl2);
 
-    // Read the victims guts out
+            // Read the victims guts out.
     You_Have_Been_P0wned q = b._p0wnee;
     System.out.println("q._a = 0x"+Integer.toHexString(q._a));
     System.out.println("q._b = 0x"+Integer.toHexString(q._b));
     System.out.println("q._c = 0x"+Integer.toHexString(q._c));
     System.out.println("q._d = 0x"+Integer.toHexString(q._d));
 
     System.out.println("I will now crash the VM:");
-    // On 32-bit HotSpot Java6 this sets the victim String length shorter, then crashes the VM
+            // On 32-bit HotSpot Java6 this sets the victim String length shorter, then crashes the VM.
     //q._c = 3;
     q._a = -1;
 
     System.out.println(s);
-
+            throw new RuntimeException("Expected LinkageError was not thrown.");
+        } catch (LinkageError e) {
+            String errorMsg = e.getMessage();
+            if (!errorMsg.contains("")) {
+                throw new RuntimeException("Error message of LinkageError does not contain \"loader constraint\":" +
+                                           errorMsg);
+            }
+            System.out.println("Passed with message: " + errorMsg);
+        }
   }
 
   // I need to compile (hence call in a loop) a function which returns a value
   // loaded from classloader other than the system one.  The point of this
   // call is to give me an abstract 'hook' into a function loaded with a
   // foreign loader.
-  public abstract many_loader[] make( IFace iface ); // abstract factory
+    public abstract many_loader[] make(IFace iface); // abstract factory
 }