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8000537: Contextualize RequiredModelMBean class

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Contextualize RequiredModelMBean class

Reviewed-by: asaha
This commit is contained in:
Jaroslav Bachorik 2012-12-07 22:49:08 +04:00 committed by Dmitry Samersoff
parent d093c6fbb6
commit 07d6fc6bd1
1 changed files with 172 additions and 53 deletions
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225
jdk/src/share/classes/javax/management/modelmbean/RequiredModelMBean.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2008, 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
@ -39,11 +39,13 @@ import java.io.PrintStream;
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;
import java.util.HashSet;
import java.util.Iterator;
import java.util.logging.Level;
import java.util.Map;
import java.util.Set;
@ -78,6 +80,8 @@ import javax.management.RuntimeErrorException;
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 +142,9 @@ 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 +1032,31 @@ 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<?>>() {
@Override
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 +1089,9 @@ 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 +1106,45 @@ 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) {
javaSecurityAccess.doIntersectionPrivilege(new PrivilegedAction<Void>() {
@Override
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]);
}
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);
}
}
final String msg = "Parameter class not found";
throw new ReflectionException(e, msg);
}
return null;
}
}, stack, acc);
if (caughtException[0] != null) {
throw caughtException[0];
}
}
@ -1133,7 +1176,7 @@ 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 +1198,29 @@ 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<?>>() {
@Override
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 +1230,35 @@ 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>() {
@Override
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 "+
@ -1567,7 +1643,7 @@ 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)) {
@ -1590,9 +1666,31 @@ 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<?>>() {
@Override
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;
@ -2745,16 +2843,37 @@ 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<?>>() {
@Override
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;
}