7172551: Remove Native calls from DriverManager for jigsaw

Reviewed-by: alanb, chegar, darcy, mchung

make/java/java/FILES_c.gmk

@@ -69,7 +69,6 @@ FILES_c = \
 	jdk_util_md.c \
 	check_version.c \
 	java_props_md.c \
-	DriverManager.c \
 	ConstantPool.c \
 	MessageUtils.c \
 	GC.c \

make/java/java/mapfile-vers

@@ -232,7 +232,6 @@ SUNWprivate_1.1 {
 		Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedExceptionAction_2Ljava_security_AccessControlContext_2;
 		Java_java_security_AccessController_getStackAccessControlContext;
 		Java_java_security_AccessController_getInheritedAccessControlContext;
-		Java_java_sql_DriverManager_getCallerClassLoader;
 		Java_java_util_ResourceBundle_getClassContext;
 		Java_java_util_TimeZone_getSystemTimeZoneID;
 		Java_java_util_TimeZone_getSystemGMTOffsetID;

makefiles/java/java/FILES_c.gmk

@@ -69,7 +69,6 @@ FILES_c = \
 	jdk_util_md.c \
 	check_version.c \
 	java_props_md.c \
-	DriverManager.c \
 	ConstantPool.c \
 	MessageUtils.c \
 	GC.c \

makefiles/java/java/mapfile-vers

@@ -232,7 +232,6 @@ SUNWprivate_1.1 {
 		Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedExceptionAction_2Ljava_security_AccessControlContext_2;
 		Java_java_security_AccessController_getStackAccessControlContext;
 		Java_java_security_AccessController_getInheritedAccessControlContext;
-		Java_java_sql_DriverManager_getCallerClassLoader;
 		Java_java_util_ResourceBundle_getClassContext;
 		Java_java_util_TimeZone_getSystemTimeZoneID;
 		Java_java_util_TimeZone_getSystemGMTOffsetID;

src/share/classes/java/sql/DriverManager.java

 /*
- * Copyright (c) 1996, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2012, 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
@@ -30,6 +30,7 @@ import java.util.ServiceLoader;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 import java.util.concurrent.CopyOnWriteArrayList;
+import sun.reflect.Reflection;
 
 
 /**
@@ -462,6 +463,15 @@ public class DriverManager {
 
     //------------------------------------------------------------------------
 
+    // Internal method used to get the caller's class loader.
+    // Replaces the call to the native method
+    private static ClassLoader getCallerClassLoader() {
+        Class<?> cc = Reflection.getCallerClass(3);
+        ClassLoader cl = (cc != null) ? cc.getClassLoader() : null;
+        return cl;
+    }
+
+
     // Indicates whether the class object that would be created if the code calling
     // DriverManager is accessible.
     private static boolean isDriverAllowed(Driver driver, ClassLoader classLoader) {
@@ -604,8 +614,6 @@ public class DriverManager {
         throw new SQLException("No suitable driver found for "+ url, "08001");
     }
 
-    /* Returns the caller's class loader, or null if none */
-    private static native ClassLoader getCallerClassLoader();
 
 }
 

src/share/native/java/sql/DriverManager.c

-/*
- * Copyright (c) 1998, 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.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * 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.
- */
-
-#include <stdlib.h>
-
-#include "jni.h"
-#include "jni_util.h"
-#include "jvm.h"
-
-JNIEXPORT jobject JNICALL
-Java_java_sql_DriverManager_getCallerClassLoader(JNIEnv *env, jobject this)
-{
-    jclass caller = JVM_GetCallerClass(env, 2);
-    return caller != 0 ? JVM_GetClassLoader(env, caller) : 0;
-}