6191224: (reflect) Misleading detail string in IllegalArgumentException thrown by Array.get<Type>
Summary: The test case shows that an exception is thrown with the message "Argument is not an array", when in fact the argument is an array, but an array of a primitive type is actually what was expected. Fixed by differentiating between failing because an array was expected and failing because an array of a primitive type was expected.
Reviewed-by: dholmes, ctornqvi, lfoltan
--- a/hotspot/src/share/vm/prims/jvm.cpp Thu Oct 23 10:08:02 2014 -0700
+++ b/hotspot/src/share/vm/prims/jvm.cpp Thu Oct 23 14:43:08 2014 -0700
@@ -3271,8 +3271,10 @@
THROW_0(vmSymbols::java_lang_NullPointerException());
}
oop a = JNIHandles::resolve_non_null(arr);
- if (!a->is_array() || (type_array_only && !a->is_typeArray())) {
+ if (!a->is_array()) {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Argument is not an array");
+ } else if (type_array_only && !a->is_typeArray()) {
+ THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Argument is not an array of primitive type");
}
return arrayOop(a);
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/reflect/ArrayGetIntException.java Thu Oct 23 14:43:08 2014 -0700
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 6191224
+ * @summary (reflect) Misleading detail string in IllegalArgumentException thrown by Array.get<Type>
+ * @run main ArrayGetIntException
+ */
+import java.io.*;
+import java.lang.reflect.Array;
+
+public class ArrayGetIntException {
+ public static void main(String[] args) throws Exception {
+ Object[] objArray = {new Integer(Integer.MAX_VALUE)};
+
+ // this access is legal
+ try {
+ System.out.println(Array.get(objArray, 0));
+ System.out.println("Test #1 PASSES");
+ } catch(Exception e) {
+ failTest("Test #1 FAILS - legal access denied" + e.getMessage());
+ }
+
+ // this access is not legal, but needs to generate the proper exception message
+ try {
+ System.out.println(Array.getInt(objArray, 0));
+ failTest("Test #2 FAILS - no exception");
+ } catch(Exception e) {
+ System.out.println(e);
+ if (e.getMessage().equals("Argument is not an array of primitive type")) {
+ System.out.println("Test #2 PASSES");
+ } else {
+ failTest("Test #2 FAILS - incorrect message: " + e.getMessage());
+ }
+ }
+
+ // this access is not legal, but needs to generate the proper exception message
+ try {
+ System.out.println(Array.getInt(new Object(), 0));
+ failTest("Test #3 FAILS - no exception");
+ } catch(Exception e) {
+ System.out.println(e);
+ if (e.getMessage().equals("Argument is not an array")) {
+ System.out.println("Test #3 PASSES");
+ } else {
+ failTest("Test #3 FAILS - incorrect message: " + e.getMessage());
+ }
+ }
+ }
+
+ private static void failTest(String errStr) {
+ System.out.println(errStr);
+ throw new Error(errStr);
+ }
+}