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# HG changeset patch
# User ewendeli
# Date 1353844618 -3600
# Node ID 21415f01c66add2891500f10e41c7e99b2b10447
# Parent 787e9230b414f346f9c318918aaf58b872b9912e
8000537: Contextualize RequiredModelMBean class
Reviewed-by: jbachorik
Contributed-by: Andreas Eriksson <andreas.eriksson@oracle.com>
diff --git a/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java b/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java
--- jdk/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java
+++ jdk/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -39,6 +39,9 @@ import java.lang.reflect.InvocationTarge
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
+import java.security.AccessControlContext;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
import java.util.Date;
import java.util.HashMap;
@@ -77,6 +80,8 @@ import javax.management.RuntimeOperation
import javax.management.RuntimeOperationsException;
import javax.management.ServiceNotFoundException;
import javax.management.loading.ClassLoaderRepository;
+import sun.misc.JavaSecurityAccess;
+import sun.misc.SharedSecrets;
import sun.reflect.misc.MethodUtil;
import sun.reflect.misc.ReflectUtil;
@@ -138,6 +143,9 @@ public class RequiredModelMBean
private boolean registered = false;
private transient MBeanServer server = null;
+ private final static JavaSecurityAccess javaSecurityAccess = SharedSecrets.getJavaSecurityAccess();
+ final private AccessControlContext acc = AccessController.getContext();
+
/*************************************/
/* constructors */
/*************************************/
@@ -1025,10 +1033,30 @@ public class RequiredModelMBean
if (opClassName != null) {
try {
- final ClassLoader targetClassLoader =
- targetObject.getClass().getClassLoader();
- targetClass = Class.forName(opClassName, false,
- targetClassLoader);
+ AccessControlContext stack = AccessController.getContext();
+ final Object obj = targetObject;
+ final String className = opClassName;
+ final ClassNotFoundException[] caughtException = new ClassNotFoundException[1];
+
+ targetClass = javaSecurityAccess.doIntersectionPrivilege(new PrivilegedAction<Class<?>>() {
+
+ public Class<?> run() {
+ try {
+ ReflectUtil.checkPackageAccess(className);
+ final ClassLoader targetClassLoader =
+ obj.getClass().getClassLoader();
+ return Class.forName(className, false,
+ targetClassLoader);
+ } catch (ClassNotFoundException e) {
+ caughtException[0] = e;
+ }
+ return null;
+ }
+ }, stack, acc);
+
+ if (caughtException[0] != null) {
+ throw caughtException[0];
+ }
} catch (ClassNotFoundException e) {
final String msg =
"class for invoke " + opName + " not found";
@@ -1061,9 +1090,9 @@ public class RequiredModelMBean
return result;
}
- private static Method resolveMethod(Class<?> targetClass,
+ private Method resolveMethod(Class<?> targetClass,
String opMethodName,
- String[] sig)
+ final String[] sig)
throws ReflectionException {
final boolean tracing = MODELMBEAN_LOGGER.isLoggable(Level.FINER);
@@ -1078,30 +1107,44 @@ public class RequiredModelMBean
if (sig == null)
argClasses = null;
else {
+ final AccessControlContext stack = AccessController.getContext();
+ final ReflectionException[] caughtException = new ReflectionException[1];
final ClassLoader targetClassLoader = targetClass.getClassLoader();
- argClasses = new Class[sig.length];
- for (int i = 0; i < sig.length; i++) {
- if (tracing) {
- MODELMBEAN_LOGGER.logp(Level.FINER,
- RequiredModelMBean.class.getName(),"resolveMethod",
- "resolve type " + sig[i]);
- }
- argClasses[i] = (Class) primitiveClassMap.get(sig[i]);
- if (argClasses[i] == null) {
- try {
- argClasses[i] =
- Class.forName(sig[i], false, targetClassLoader);
- } catch (ClassNotFoundException e) {
+ argClasses = new Class<?>[sig.length];
+
+ javaSecurityAccess.doIntersectionPrivilege(new PrivilegedAction<Void>() {
+
+ public Void run() {
+ for (int i = 0; i < sig.length; i++) {
if (tracing) {
MODELMBEAN_LOGGER.logp(Level.FINER,
- RequiredModelMBean.class.getName(),
- "resolveMethod",
- "class not found");
+ RequiredModelMBean.class.getName(),"resolveMethod",
+ "resolve type " + sig[i]);
}
- final String msg = "Parameter class not found";
- throw new ReflectionException(e, msg);
+ argClasses[i] = (Class<?>) primitiveClassMap.get(sig[i]);
+ if (argClasses[i] == null) {
+ try {
+ ReflectUtil.checkPackageAccess(sig[i]);
+ argClasses[i] =
+ Class.forName(sig[i], false, targetClassLoader);
+ } catch (ClassNotFoundException e) {
+ if (tracing) {
+ MODELMBEAN_LOGGER.logp(Level.FINER,
+ RequiredModelMBean.class.getName(),
+ "resolveMethod",
+ "class not found");
+ }
+ final String msg = "Parameter class not found";
+ caughtException[0] = new ReflectionException(e, msg);
+ }
+ }
}
+ return null;
}
+ }, stack, acc);
+
+ if (caughtException[0] != null) {
+ throw caughtException[0];
}
}
@@ -1133,7 +1177,7 @@ public class RequiredModelMBean
/* Find a method in RequiredModelMBean as determined by the given
parameters. Return null if there is none, or if the parameters
exclude using it. Called from invoke. */
- private static Method findRMMBMethod(String opMethodName,
+ private Method findRMMBMethod(String opMethodName,
Object targetObjectField,
String opClassName,
String[] sig) {
@@ -1155,19 +1199,28 @@ public class RequiredModelMBean
if (opClassName == null)
targetClass = rmmbClass;
else {
- try {
- final ClassLoader targetClassLoader =
- rmmbClass.getClassLoader();
- targetClass = Class.forName(opClassName, false,
- targetClassLoader);
- if (!rmmbClass.isAssignableFrom(targetClass))
- return null;
- } catch (ClassNotFoundException e) {
- return null;
- }
+ AccessControlContext stack = AccessController.getContext();
+ final String className = opClassName;
+ targetClass = javaSecurityAccess.doIntersectionPrivilege(new PrivilegedAction<Class<?>>() {
+
+ public Class<?> run() {
+ try {
+ ReflectUtil.checkPackageAccess(className);
+ final ClassLoader targetClassLoader =
+ rmmbClass.getClassLoader();
+ Class clz = Class.forName(className, false,
+ targetClassLoader);
+ if (!rmmbClass.isAssignableFrom(clz))
+ return null;
+ return clz;
+ } catch (ClassNotFoundException e) {
+ return null;
+ }
+ }
+ }, stack, acc);
}
try {
- return resolveMethod(targetClass, opMethodName, sig);
+ return targetClass != null ? resolveMethod(targetClass, opMethodName, sig) : null;
} catch (ReflectionException e) {
return null;
}
@@ -1177,12 +1231,34 @@ public class RequiredModelMBean
* Invoke the given method, and throw the somewhat unpredictable
* appropriate exception if the method itself gets an exception.
*/
- private Object invokeMethod(String opName, Method method,
- Object targetObject, Object[] opArgs)
+ private Object invokeMethod(String opName, final Method method,
+ final Object targetObject, final Object[] opArgs)
throws MBeanException, ReflectionException {
try {
- ReflectUtil.checkPackageAccess(method.getDeclaringClass());
- return MethodUtil.invoke(method, targetObject, opArgs);
+ final Throwable[] caughtException = new Throwable[1];
+ AccessControlContext stack = AccessController.getContext();
+ Object rslt = javaSecurityAccess.doIntersectionPrivilege(new PrivilegedAction<Object>() {
+
+ public Object run() {
+ try {
+ ReflectUtil.checkPackageAccess(method.getDeclaringClass());
+ return MethodUtil.invoke(method, targetObject, opArgs);
+ } catch (InvocationTargetException e) {
+ caughtException[0] = e;
+ } catch (IllegalAccessException e) {
+ caughtException[0] = e;
+ }
+ return null;
+ }
+ }, stack, acc);
+ if (caughtException[0] != null) {
+ if (caughtException[0] instanceof Exception) {
+ throw (Exception)caughtException[0];
+ } else if(caughtException[0] instanceof Error) {
+ throw (Error)caughtException[0];
+ }
+ }
+ return rslt;
} catch (RuntimeErrorException ree) {
throw new RuntimeOperationsException(ree,
"RuntimeException occurred in RequiredModelMBean "+
@@ -1569,7 +1646,7 @@ public class RequiredModelMBean
}
// make sure response class matches type field
- String respType = attrInfo.getType();
+ final String respType = attrInfo.getType();
if (response != null) {
String responseClass = response.getClass().getName();
if (!respType.equals(responseClass)) {
@@ -1592,9 +1669,30 @@ public class RequiredModelMBean
// inequality may come from type subclassing
boolean subtype;
try {
- ClassLoader cl =
- response.getClass().getClassLoader();
- Class c = Class.forName(respType, true, cl);
+ final Class respClass = response.getClass();
+ final Exception[] caughException = new Exception[1];
+
+ AccessControlContext stack = AccessController.getContext();
+
+ Class c = javaSecurityAccess.doIntersectionPrivilege(new PrivilegedAction<Class<?>>() {
+
+ public Class<?> run() {
+ try {
+ ReflectUtil.checkPackageAccess(respType);
+ ClassLoader cl =
+ respClass.getClassLoader();
+ return Class.forName(respType, true, cl);
+ } catch (Exception e) {
+ caughException[0] = e;
+ }
+ return null;
+ }
+ }, stack, acc);
+
+ if (caughException[0] != null) {
+ throw caughException[0];
+ }
+
subtype = c.isInstance(response);
} catch (Exception e) {
subtype = false;
@@ -2748,16 +2847,36 @@ public class RequiredModelMBean
return MBeanServerFactory.getClassLoaderRepository(server);
}
- private Class loadClass(String className)
+ private Class<?> loadClass(final String className)
throws ClassNotFoundException {
- try {
- return Class.forName(className);
- } catch (ClassNotFoundException e) {
- final ClassLoaderRepository clr =
- getClassLoaderRepository();
- if (clr == null) throw new ClassNotFoundException(className);
- return clr.loadClass(className);
+ AccessControlContext stack = AccessController.getContext();
+ final ClassNotFoundException[] caughtException = new ClassNotFoundException[1];
+
+ Class c = javaSecurityAccess.doIntersectionPrivilege(new PrivilegedAction<Class<?>>() {
+
+ public Class<?> run() {
+ try {
+ ReflectUtil.checkPackageAccess(className);
+ return Class.forName(className);
+ } catch (ClassNotFoundException e) {
+ final ClassLoaderRepository clr =
+ getClassLoaderRepository();
+ try {
+ if (clr == null) throw new ClassNotFoundException(className);
+ return clr.loadClass(className);
+ } catch (ClassNotFoundException ex) {
+ caughtException[0] = ex;
+ }
+ }
+ return null;
+ }
+ }, stack, acc);
+
+ if (caughtException[0] != null) {
+ throw caughtException[0];
}
+
+ return c;
}
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