author | dfuchs |
Fri, 20 Jan 2017 18:41:12 +0000 | |
changeset 43235 | da1786d695b6 |
parent 25859 | 3317bb8137f4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.jmx.mbeanserver; |
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import static com.sun.jmx.defaults.JmxProperties.MBEANSERVER_LOGGER; |
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import java.io.ByteArrayInputStream; |
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import java.io.IOException; |
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import java.io.ObjectInputStream; |
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import java.lang.reflect.Constructor; |
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import java.lang.reflect.InvocationTargetException; |
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import java.lang.reflect.Modifier; |
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import java.security.AccessControlContext; |
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import java.security.AccessController; |
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import java.security.Permission; |
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import java.security.Permissions; |
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import java.security.PrivilegedAction; |
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import java.security.ProtectionDomain; |
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import java.util.Map; |
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import java.lang.System.Logger.Level; |
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import javax.management.InstanceNotFoundException; |
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import javax.management.MBeanException; |
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import javax.management.MBeanPermission; |
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import javax.management.NotCompliantMBeanException; |
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import javax.management.ObjectName; |
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import javax.management.OperationsException; |
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import javax.management.ReflectionException; |
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import javax.management.RuntimeErrorException; |
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import javax.management.RuntimeMBeanException; |
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import javax.management.RuntimeOperationsException; |
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import sun.reflect.misc.ConstructorUtil; |
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import sun.reflect.misc.ReflectUtil; |
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/** |
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* Implements the MBeanInstantiator interface. Provides methods for |
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* instantiating objects, finding the class given its name and using |
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* different class loaders, deserializing objects in the context of a |
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* given class loader. |
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* |
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* @since 1.5 |
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*/ |
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public class MBeanInstantiator { |
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private final ModifiableClassLoaderRepository clr; |
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// private MetaData meta = null; |
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MBeanInstantiator(ModifiableClassLoaderRepository clr) { |
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this.clr = clr; |
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} |
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/** |
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* This methods tests if the MBean class makes it possible to |
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* instantiate an MBean of this class in the MBeanServer. |
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* e.g. it must have a public constructor, be a concrete class... |
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*/ |
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public void testCreation(Class<?> c) throws NotCompliantMBeanException { |
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Introspector.testCreation(c); |
82 |
} |
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/** |
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* Loads the class with the specified name using this object's |
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* Default Loader Repository. |
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**/ |
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public Class<?> findClassWithDefaultLoaderRepository(String className) |
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throws ReflectionException { |
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Class<?> theClass; |
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if (className == null) { |
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throw new RuntimeOperationsException(new |
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IllegalArgumentException("The class name cannot be null"), |
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"Exception occurred during object instantiation"); |
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} |
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ReflectUtil.checkPackageAccess(className); |
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try { |
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if (clr == null) throw new ClassNotFoundException(className); |
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theClass = clr.loadClass(className); |
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} |
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catch (ClassNotFoundException ee) { |
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throw new ReflectionException(ee, |
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"The MBean class could not be loaded by the default loader repository"); |
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} |
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return theClass; |
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} |
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/** |
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* Gets the class for the specified class name using the MBean |
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* Interceptor's classloader |
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*/ |
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public Class<?> findClass(String className, ClassLoader loader) |
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throws ReflectionException { |
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return loadClass(className,loader); |
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} |
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/** |
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* Gets the class for the specified class name using the specified |
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* class loader |
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*/ |
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public Class<?> findClass(String className, ObjectName aLoader) |
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throws ReflectionException, InstanceNotFoundException { |
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if (aLoader == null) |
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throw new RuntimeOperationsException(new |
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IllegalArgumentException(), "Null loader passed in parameter"); |
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// Retrieve the class loader from the repository |
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ClassLoader loader = null; |
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synchronized (this) { |
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loader = getClassLoader(aLoader); |
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} |
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if (loader == null) { |
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throw new InstanceNotFoundException("The loader named " + |
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aLoader + " is not registered in the MBeanServer"); |
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} |
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return findClass(className,loader); |
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} |
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/** |
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* Return an array of Class corresponding to the given signature, using |
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* the specified class loader. |
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*/ |
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public Class<?>[] findSignatureClasses(String signature[], |
151 |
ClassLoader loader) |
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throws ReflectionException { |
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if (signature == null) return null; |
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final ClassLoader aLoader = loader; |
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final int length= signature.length; |
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final Class<?> tab[]=new Class<?>[length]; |
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if (length == 0) return tab; |
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try { |
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for (int i= 0; i < length; i++) { |
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// Start handling primitive types (int. boolean and so |
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// forth) |
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// |
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final Class<?> primCla = primitiveClasses.get(signature[i]); |
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if (primCla != null) { |
168 |
tab[i] = primCla; |
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continue; |
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} |
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ReflectUtil.checkPackageAccess(signature[i]); |
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// Ok we do not have a primitive type ! We need to build |
174 |
// the signature of the method |
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// |
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176 |
if (aLoader != null) { |
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// We need to load the class through the class |
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// loader of the target object. |
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// |
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tab[i] = Class.forName(signature[i], false, aLoader); |
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} else { |
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// Load through the default class loader |
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// |
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tab[i] = findClass(signature[i], |
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this.getClass().getClassLoader()); |
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} |
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} |
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} catch (ClassNotFoundException e) { |
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if (MBEANSERVER_LOGGER.isLoggable(Level.DEBUG)) { |
190 |
MBEANSERVER_LOGGER.log(Level.DEBUG, |
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"The parameter class could not be found", e); |
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} |
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throw new ReflectionException(e, |
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"The parameter class could not be found"); |
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} catch (RuntimeException e) { |
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if (MBEANSERVER_LOGGER.isLoggable(Level.DEBUG)) { |
197 |
MBEANSERVER_LOGGER.log(Level.DEBUG, |
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"Unexpected exception", e); |
199 |
} |
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throw e; |
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} |
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return tab; |
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} |
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/** |
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* Instantiates an object given its class, using its empty constructor. |
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* The call returns a reference to the newly created object. |
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*/ |
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public Object instantiate(Class<?> theClass) |
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throws ReflectionException, MBeanException { |
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checkMBeanPermission(theClass, null, null, "instantiate"); |
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parents:
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changeset
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Object moi; |
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// ------------------------------ |
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218 |
// ------------------------------ |
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Constructor<?> cons = findConstructor(theClass, null); |
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if (cons == null) { |
221 |
throw new ReflectionException(new |
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NoSuchMethodException("No such constructor")); |
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} |
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// Instantiate the new object |
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try { |
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ReflectUtil.checkPackageAccess(theClass); |
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ensureClassAccess(theClass); |
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moi= cons.newInstance(); |
229 |
} catch (InvocationTargetException e) { |
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// Wrap the exception. |
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Throwable t = e.getTargetException(); |
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232 |
if (t instanceof RuntimeException) { |
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throw new RuntimeMBeanException((RuntimeException)t, |
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"RuntimeException thrown in the MBean's empty constructor"); |
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} else if (t instanceof Error) { |
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throw new RuntimeErrorException((Error) t, |
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"Error thrown in the MBean's empty constructor"); |
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} else { |
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throw new MBeanException((Exception) t, |
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"Exception thrown in the MBean's empty constructor"); |
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} |
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} catch (NoSuchMethodError error) { |
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throw new ReflectionException(new |
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NoSuchMethodException("No constructor"), |
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"No such constructor"); |
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} catch (InstantiationException e) { |
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throw new ReflectionException(e, |
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"Exception thrown trying to invoke the MBean's empty constructor"); |
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} catch (IllegalAccessException e) { |
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throw new ReflectionException(e, |
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"Exception thrown trying to invoke the MBean's empty constructor"); |
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252 |
} catch (IllegalArgumentException e) { |
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throw new ReflectionException(e, |
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"Exception thrown trying to invoke the MBean's empty constructor"); |
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255 |
} |
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256 |
return moi; |
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} |
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259 |
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260 |
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261 |
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262 |
/** |
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263 |
* Instantiates an object given its class, the parameters and |
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264 |
* signature of its constructor The call returns a reference to |
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265 |
* the newly created object. |
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266 |
*/ |
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1510 | 267 |
public Object instantiate(Class<?> theClass, Object params[], |
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String signature[], ClassLoader loader) |
269 |
throws ReflectionException, MBeanException { |
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16109 | 270 |
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271 |
checkMBeanPermission(theClass, null, null, "instantiate"); |
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||
2 | 273 |
// Instantiate the new object |
274 |
// ------------------------------ |
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275 |
// ------------------------------ |
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1510 | 276 |
final Class<?>[] tab; |
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|
277 |
Object moi; |
2 | 278 |
try { |
279 |
// Build the signature of the method |
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280 |
// |
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281 |
ClassLoader aLoader= theClass.getClassLoader(); |
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282 |
// Build the signature of the method |
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283 |
// |
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284 |
tab = |
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285 |
((signature == null)?null: |
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286 |
findSignatureClasses(signature,aLoader)); |
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287 |
} |
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288 |
// Exception IllegalArgumentException raised in Jdk1.1.8 |
|
289 |
catch (IllegalArgumentException e) { |
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290 |
throw new ReflectionException(e, |
|
291 |
"The constructor parameter classes could not be loaded"); |
|
292 |
} |
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293 |
||
294 |
// Query the metadata service to get the right constructor |
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1510 | 295 |
Constructor<?> cons = findConstructor(theClass, tab); |
2 | 296 |
|
297 |
if (cons == null) { |
|
298 |
throw new ReflectionException(new |
|
299 |
NoSuchMethodException("No such constructor")); |
|
300 |
} |
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301 |
try { |
|
302 |
ReflectUtil.checkPackageAccess(theClass); |
|
16878 | 303 |
ensureClassAccess(theClass); |
2 | 304 |
moi = cons.newInstance(params); |
305 |
} |
|
306 |
catch (NoSuchMethodError error) { |
|
307 |
throw new ReflectionException(new |
|
308 |
NoSuchMethodException("No such constructor found"), |
|
309 |
"No such constructor" ); |
|
310 |
} |
|
311 |
catch (InstantiationException e) { |
|
312 |
throw new ReflectionException(e, |
|
313 |
"Exception thrown trying to invoke the MBean's constructor"); |
|
314 |
} |
|
315 |
catch (IllegalAccessException e) { |
|
316 |
throw new ReflectionException(e, |
|
317 |
"Exception thrown trying to invoke the MBean's constructor"); |
|
318 |
} |
|
319 |
catch (InvocationTargetException e) { |
|
320 |
// Wrap the exception. |
|
321 |
Throwable th = e.getTargetException(); |
|
322 |
if (th instanceof RuntimeException) { |
|
323 |
throw new RuntimeMBeanException((RuntimeException)th, |
|
324 |
"RuntimeException thrown in the MBean's constructor"); |
|
325 |
} else if (th instanceof Error) { |
|
326 |
throw new RuntimeErrorException((Error) th, |
|
327 |
"Error thrown in the MBean's constructor"); |
|
328 |
} else { |
|
329 |
throw new MBeanException((Exception) th, |
|
330 |
"Exception thrown in the MBean's constructor"); |
|
331 |
} |
|
332 |
} |
|
333 |
return moi; |
|
334 |
} |
|
335 |
||
336 |
/** |
|
337 |
* De-serializes a byte array in the context of a classloader. |
|
338 |
* |
|
339 |
* @param loader the classloader to use for de-serialization |
|
340 |
* @param data The byte array to be de-sererialized. |
|
341 |
* |
|
342 |
* @return The de-serialized object stream. |
|
343 |
* |
|
344 |
* @exception OperationsException Any of the usual Input/Output related |
|
345 |
* exceptions. |
|
346 |
*/ |
|
347 |
public ObjectInputStream deserialize(ClassLoader loader, byte[] data) |
|
348 |
throws OperationsException { |
|
349 |
||
350 |
// Check parameter validity |
|
351 |
if (data == null) { |
|
352 |
throw new RuntimeOperationsException(new |
|
353 |
IllegalArgumentException(), "Null data passed in parameter"); |
|
354 |
} |
|
355 |
if (data.length == 0) { |
|
356 |
throw new RuntimeOperationsException(new |
|
357 |
IllegalArgumentException(), "Empty data passed in parameter"); |
|
358 |
} |
|
359 |
||
360 |
// Object deserialization |
|
361 |
ByteArrayInputStream bIn; |
|
362 |
ObjectInputStream objIn; |
|
363 |
||
364 |
bIn = new ByteArrayInputStream(data); |
|
365 |
try { |
|
366 |
objIn = new ObjectInputStreamWithLoader(bIn,loader); |
|
367 |
} catch (IOException e) { |
|
368 |
throw new OperationsException( |
|
369 |
"An IOException occurred trying to de-serialize the data"); |
|
370 |
} |
|
371 |
||
372 |
return objIn; |
|
373 |
} |
|
374 |
||
375 |
/** |
|
376 |
* De-serializes a byte array in the context of a given MBean class loader. |
|
377 |
* <P>The class loader is the one that loaded the class with name |
|
378 |
* "className". |
|
379 |
* <P>The name of the class loader to be used for loading the specified |
|
380 |
* class is specified. If null, a default one has to be provided (for a |
|
381 |
* MBean Server, its own class loader will be used). |
|
382 |
* |
|
383 |
* @param className The name of the class whose class loader should |
|
384 |
* be used for the de-serialization. |
|
385 |
* @param data The byte array to be de-sererialized. |
|
386 |
* @param loaderName The name of the class loader to be used for loading |
|
387 |
* the specified class. If null, a default one has to be provided (for a |
|
388 |
* MBean Server, its own class loader will be used). |
|
389 |
* |
|
390 |
* @return The de-serialized object stream. |
|
391 |
* |
|
392 |
* @exception InstanceNotFoundException The specified class loader MBean is |
|
393 |
* not found. |
|
394 |
* @exception OperationsException Any of the usual Input/Output related |
|
395 |
* exceptions. |
|
396 |
* @exception ReflectionException The specified class could not be loaded |
|
397 |
* by the specified class loader. |
|
398 |
*/ |
|
399 |
public ObjectInputStream deserialize(String className, |
|
400 |
ObjectName loaderName, |
|
401 |
byte[] data, |
|
402 |
ClassLoader loader) |
|
403 |
throws InstanceNotFoundException, |
|
404 |
OperationsException, |
|
405 |
ReflectionException { |
|
406 |
||
407 |
// Check parameter validity |
|
408 |
if (data == null) { |
|
409 |
throw new RuntimeOperationsException(new |
|
410 |
IllegalArgumentException(), "Null data passed in parameter"); |
|
411 |
} |
|
412 |
if (data.length == 0) { |
|
413 |
throw new RuntimeOperationsException(new |
|
414 |
IllegalArgumentException(), "Empty data passed in parameter"); |
|
415 |
} |
|
416 |
if (className == null) { |
|
417 |
throw new RuntimeOperationsException(new |
|
418 |
IllegalArgumentException(), "Null className passed in parameter"); |
|
419 |
} |
|
16109 | 420 |
|
421 |
ReflectUtil.checkPackageAccess(className); |
|
1510 | 422 |
Class<?> theClass; |
2 | 423 |
if (loaderName == null) { |
424 |
// Load the class using the agent class loader |
|
425 |
theClass = findClass(className, loader); |
|
426 |
||
427 |
} else { |
|
428 |
// Get the class loader MBean |
|
429 |
try { |
|
430 |
ClassLoader instance = null; |
|
431 |
||
18207 | 432 |
instance = getClassLoader(loaderName); |
2 | 433 |
if (instance == null) |
434 |
throw new ClassNotFoundException(className); |
|
435 |
theClass = Class.forName(className, false, instance); |
|
436 |
} |
|
437 |
catch (ClassNotFoundException e) { |
|
438 |
throw new ReflectionException(e, |
|
439 |
"The MBean class could not be loaded by the " + |
|
440 |
loaderName.toString() + " class loader"); |
|
441 |
} |
|
442 |
} |
|
443 |
||
444 |
// Object deserialization |
|
445 |
ByteArrayInputStream bIn; |
|
446 |
ObjectInputStream objIn; |
|
447 |
||
448 |
bIn = new ByteArrayInputStream(data); |
|
449 |
try { |
|
450 |
objIn = new ObjectInputStreamWithLoader(bIn, |
|
451 |
theClass.getClassLoader()); |
|
452 |
} catch (IOException e) { |
|
453 |
throw new OperationsException( |
|
454 |
"An IOException occurred trying to de-serialize the data"); |
|
455 |
} |
|
456 |
||
457 |
return objIn; |
|
458 |
} |
|
459 |
||
460 |
||
461 |
/** |
|
462 |
* Instantiates an object using the list of all class loaders registered |
|
463 |
* in the MBean Interceptor |
|
464 |
* (using its {@link javax.management.loading.ClassLoaderRepository}). |
|
465 |
* <P>The object's class should have a public constructor. |
|
466 |
* <P>It returns a reference to the newly created object. |
|
467 |
* <P>The newly created object is not registered in the MBean Interceptor. |
|
468 |
* |
|
469 |
* @param className The class name of the object to be instantiated. |
|
470 |
* |
|
471 |
* @return The newly instantiated object. |
|
472 |
* |
|
473 |
* @exception ReflectionException Wraps a |
|
474 |
* <CODE>java.lang.ClassNotFoundException</CODE> or the |
|
475 |
* <CODE>java.lang.Exception</CODE> that occurred when trying to invoke the |
|
476 |
* object's constructor. |
|
477 |
* @exception MBeanException The constructor of the object has thrown an |
|
478 |
* exception |
|
479 |
* @exception RuntimeOperationsException Wraps a |
|
480 |
* <CODE>java.lang.IllegalArgumentException</CODE>: the className passed in |
|
481 |
* parameter is null. |
|
482 |
*/ |
|
483 |
public Object instantiate(String className) |
|
484 |
throws ReflectionException, |
|
485 |
MBeanException { |
|
486 |
||
487 |
return instantiate(className, (Object[]) null, (String[]) null, null); |
|
488 |
} |
|
489 |
||
490 |
||
491 |
||
492 |
/** |
|
493 |
* Instantiates an object using the class Loader specified by its |
|
494 |
* <CODE>ObjectName</CODE>. |
|
495 |
* <P>If the loader name is null, a default one has to be provided (for a |
|
496 |
* MBean Server, the ClassLoader that loaded it will be used). |
|
497 |
* <P>The object's class should have a public constructor. |
|
498 |
* <P>It returns a reference to the newly created object. |
|
499 |
* <P>The newly created object is not registered in the MBean Interceptor. |
|
500 |
* |
|
501 |
* @param className The class name of the MBean to be instantiated. |
|
502 |
* @param loaderName The object name of the class loader to be used. |
|
503 |
* |
|
504 |
* @return The newly instantiated object. |
|
505 |
* |
|
506 |
* @exception ReflectionException Wraps a |
|
507 |
* <CODE>java.lang.ClassNotFoundException</CODE> or the |
|
508 |
* <CODE>java.lang.Exception</CODE> that occurred when trying to invoke the |
|
509 |
* object's constructor. |
|
510 |
* @exception MBeanException The constructor of the object has thrown an |
|
511 |
* exception. |
|
512 |
* @exception InstanceNotFoundException The specified class loader is not |
|
513 |
* registered in the MBeanServerInterceptor. |
|
514 |
* @exception RuntimeOperationsException Wraps a |
|
515 |
* <CODE>java.lang.IllegalArgumentException</CODE>: the className passed in |
|
516 |
* parameter is null. |
|
517 |
*/ |
|
518 |
public Object instantiate(String className, ObjectName loaderName, |
|
519 |
ClassLoader loader) |
|
520 |
throws ReflectionException, MBeanException, |
|
521 |
InstanceNotFoundException { |
|
522 |
||
523 |
return instantiate(className, loaderName, (Object[]) null, |
|
524 |
(String[]) null, loader); |
|
525 |
} |
|
526 |
||
527 |
||
528 |
/** |
|
529 |
* Instantiates an object using the list of all class loaders registered |
|
530 |
* in the MBean server |
|
531 |
* (using its {@link javax.management.loading.ClassLoaderRepository}). |
|
532 |
* <P>The object's class should have a public constructor. |
|
533 |
* <P>The call returns a reference to the newly created object. |
|
534 |
* <P>The newly created object is not registered in the MBean Interceptor. |
|
535 |
* |
|
536 |
* @param className The class name of the object to be instantiated. |
|
537 |
* @param params An array containing the parameters of the constructor to |
|
538 |
* be invoked. |
|
539 |
* @param signature An array containing the signature of the constructor to |
|
540 |
* be invoked. |
|
541 |
* |
|
542 |
* @return The newly instantiated object. |
|
543 |
* |
|
544 |
* @exception ReflectionException Wraps a |
|
545 |
* <CODE>java.lang.ClassNotFoundException</CODE> or the |
|
546 |
* <CODE>java.lang.Exception</CODE> that occurred when trying to invoke the |
|
547 |
* object's constructor. |
|
548 |
* @exception MBeanException The constructor of the object has thrown an |
|
549 |
* exception |
|
550 |
* @exception RuntimeOperationsException Wraps a |
|
551 |
* <CODE>java.lang.IllegalArgumentException</CODE>: the className passed in |
|
552 |
* parameter is null. |
|
553 |
*/ |
|
554 |
public Object instantiate(String className, |
|
555 |
Object params[], |
|
556 |
String signature[], |
|
557 |
ClassLoader loader) |
|
558 |
throws ReflectionException, |
|
559 |
MBeanException { |
|
560 |
||
1510 | 561 |
Class<?> theClass = findClassWithDefaultLoaderRepository(className); |
2 | 562 |
return instantiate(theClass, params, signature, loader); |
563 |
} |
|
564 |
||
565 |
||
566 |
||
567 |
/** |
|
568 |
* Instantiates an object. The class loader to be used is identified by its |
|
569 |
* object name. |
|
570 |
* <P>If the object name of the loader is null, a default has to be |
|
571 |
* provided (for example, for a MBean Server, the ClassLoader that loaded |
|
572 |
* it will be used). |
|
573 |
* <P>The object's class should have a public constructor. |
|
574 |
* <P>The call returns a reference to the newly created object. |
|
575 |
* <P>The newly created object is not registered in the MBean server. |
|
576 |
* |
|
577 |
* @param className The class name of the object to be instantiated. |
|
578 |
* @param params An array containing the parameters of the constructor to |
|
579 |
* be invoked. |
|
580 |
* @param signature An array containing the signature of the constructor to |
|
581 |
* be invoked. |
|
582 |
* @param loaderName The object name of the class loader to be used. |
|
583 |
* |
|
584 |
* @return The newly instantiated object. |
|
585 |
* |
|
586 |
* @exception ReflectionException Wraps a |
|
587 |
* <CODE>java.lang.ClassNotFoundException</CODE> or the |
|
588 |
* <CODE>java.lang.Exception</CODE> that occurred when trying to invoke the |
|
589 |
* object's constructor. |
|
590 |
* @exception MBeanException The constructor of the object has thrown an |
|
591 |
* exception |
|
592 |
* @exception InstanceNotFoundException The specified class loader is not |
|
593 |
* registered in the MBean Interceptor. |
|
594 |
* @exception RuntimeOperationsException Wraps a |
|
595 |
* <CODE>java.lang.IllegalArgumentException</CODE>: the className passed in |
|
596 |
* parameter is null. |
|
597 |
*/ |
|
598 |
public Object instantiate(String className, |
|
599 |
ObjectName loaderName, |
|
600 |
Object params[], |
|
601 |
String signature[], |
|
602 |
ClassLoader loader) |
|
603 |
throws ReflectionException, |
|
604 |
MBeanException, |
|
605 |
InstanceNotFoundException { |
|
606 |
||
607 |
// ------------------------------ |
|
608 |
// ------------------------------ |
|
1510 | 609 |
Class<?> theClass; |
2 | 610 |
|
611 |
if (loaderName == null) { |
|
612 |
theClass = findClass(className, loader); |
|
613 |
} else { |
|
614 |
theClass = findClass(className, loaderName); |
|
615 |
} |
|
616 |
return instantiate(theClass, params, signature, loader); |
|
617 |
} |
|
618 |
||
619 |
||
620 |
/** |
|
621 |
* Return the Default Loader Repository used by this instantiator object. |
|
622 |
**/ |
|
623 |
public ModifiableClassLoaderRepository getClassLoaderRepository() { |
|
18203 | 624 |
checkMBeanPermission((String)null, null, null, "getClassLoaderRepository"); |
2 | 625 |
return clr; |
626 |
} |
|
627 |
||
628 |
/** |
|
629 |
* Load a class with the specified loader, or with this object |
|
630 |
* class loader if the specified loader is null. |
|
631 |
**/ |
|
1510 | 632 |
static Class<?> loadClass(String className, ClassLoader loader) |
2 | 633 |
throws ReflectionException { |
1510 | 634 |
Class<?> theClass; |
2 | 635 |
if (className == null) { |
636 |
throw new RuntimeOperationsException(new |
|
637 |
IllegalArgumentException("The class name cannot be null"), |
|
638 |
"Exception occurred during object instantiation"); |
|
639 |
} |
|
16109 | 640 |
ReflectUtil.checkPackageAccess(className); |
2 | 641 |
try { |
642 |
if (loader == null) |
|
643 |
loader = MBeanInstantiator.class.getClassLoader(); |
|
644 |
if (loader != null) { |
|
645 |
theClass = Class.forName(className, false, loader); |
|
646 |
} else { |
|
647 |
theClass = Class.forName(className); |
|
648 |
} |
|
649 |
} catch (ClassNotFoundException e) { |
|
650 |
throw new ReflectionException(e, |
|
1705
08644ea24ce6
6780803: Wrong parameter name in description of EventClient::addListeners()
emcmanus
parents:
1702
diff
changeset
|
651 |
"The MBean class could not be loaded"); |
2 | 652 |
} |
653 |
return theClass; |
|
654 |
} |
|
655 |
||
656 |
||
657 |
||
658 |
/** |
|
659 |
* Load the classes specified in the signature with the given loader, |
|
660 |
* or with this object class loader. |
|
661 |
**/ |
|
1510 | 662 |
static Class<?>[] loadSignatureClasses(String signature[], |
663 |
ClassLoader loader) |
|
2 | 664 |
throws ReflectionException { |
665 |
||
666 |
if (signature == null) return null; |
|
667 |
final ClassLoader aLoader = |
|
668 |
(loader==null?MBeanInstantiator.class.getClassLoader():loader); |
|
669 |
final int length= signature.length; |
|
1510 | 670 |
final Class<?> tab[]=new Class<?>[length]; |
2 | 671 |
|
672 |
if (length == 0) return tab; |
|
673 |
try { |
|
674 |
for (int i= 0; i < length; i++) { |
|
675 |
// Start handling primitive types (int. boolean and so |
|
676 |
// forth) |
|
677 |
// |
|
678 |
||
1510 | 679 |
final Class<?> primCla = primitiveClasses.get(signature[i]); |
2 | 680 |
if (primCla != null) { |
681 |
tab[i] = primCla; |
|
682 |
continue; |
|
683 |
} |
|
684 |
||
685 |
// Ok we do not have a primitive type ! We need to build |
|
686 |
// the signature of the method |
|
687 |
// |
|
688 |
// We need to load the class through the class |
|
689 |
// loader of the target object. |
|
690 |
// |
|
16109 | 691 |
ReflectUtil.checkPackageAccess(signature[i]); |
2 | 692 |
tab[i] = Class.forName(signature[i], false, aLoader); |
693 |
} |
|
694 |
} catch (ClassNotFoundException e) { |
|
43235 | 695 |
if (MBEANSERVER_LOGGER.isLoggable(Level.DEBUG)) { |
696 |
MBEANSERVER_LOGGER.log(Level.DEBUG, |
|
2 | 697 |
"The parameter class could not be found", e); |
698 |
} |
|
699 |
throw new ReflectionException(e, |
|
700 |
"The parameter class could not be found"); |
|
701 |
} catch (RuntimeException e) { |
|
43235 | 702 |
if (MBEANSERVER_LOGGER.isLoggable(Level.DEBUG)) { |
703 |
MBEANSERVER_LOGGER.log(Level.DEBUG, |
|
2 | 704 |
"Unexpected exception", e); |
705 |
} |
|
706 |
throw e; |
|
707 |
} |
|
708 |
return tab; |
|
709 |
} |
|
710 |
||
711 |
private Constructor<?> findConstructor(Class<?> c, Class<?>[] params) { |
|
712 |
try { |
|
16109 | 713 |
return ConstructorUtil.getConstructor(c, params); |
2 | 714 |
} catch (Exception e) { |
715 |
return null; |
|
716 |
} |
|
717 |
} |
|
718 |
||
719 |
||
720 |
private static final Map<String, Class<?>> primitiveClasses = Util.newMap(); |
|
721 |
static { |
|
1510 | 722 |
for (Class<?> c : new Class<?>[] {byte.class, short.class, int.class, |
723 |
long.class, float.class, double.class, |
|
724 |
char.class, boolean.class}) |
|
2 | 725 |
primitiveClasses.put(c.getName(), c); |
726 |
} |
|
16109 | 727 |
|
728 |
private static void checkMBeanPermission(Class<?> clazz, |
|
729 |
String member, |
|
730 |
ObjectName objectName, |
|
731 |
String actions) { |
|
18203 | 732 |
if (clazz != null) { |
733 |
checkMBeanPermission(clazz.getName(), member, objectName, actions); |
|
734 |
} |
|
735 |
} |
|
736 |
||
737 |
private static void checkMBeanPermission(String classname, |
|
738 |
String member, |
|
739 |
ObjectName objectName, |
|
740 |
String actions) |
|
741 |
throws SecurityException { |
|
16109 | 742 |
SecurityManager sm = System.getSecurityManager(); |
18203 | 743 |
if (sm != null) { |
744 |
Permission perm = new MBeanPermission(classname, |
|
16109 | 745 |
member, |
746 |
objectName, |
|
747 |
actions); |
|
748 |
sm.checkPermission(perm); |
|
749 |
} |
|
750 |
} |
|
16878 | 751 |
|
24871
224e298c3978
8044865: Fix raw and unchecked lint warnings in management-related code
sjiang
parents:
18207
diff
changeset
|
752 |
private static void ensureClassAccess(Class<?> clazz) |
16878 | 753 |
throws IllegalAccessException |
754 |
{ |
|
755 |
int mod = clazz.getModifiers(); |
|
756 |
if (!Modifier.isPublic(mod)) { |
|
757 |
throw new IllegalAccessException("Class is not public and can't be instantiated"); |
|
758 |
} |
|
759 |
} |
|
18207 | 760 |
|
761 |
private ClassLoader getClassLoader(final ObjectName name) { |
|
762 |
if(clr == null){ |
|
763 |
return null; |
|
764 |
} |
|
765 |
// Restrict to getClassLoader permission only |
|
766 |
Permissions permissions = new Permissions(); |
|
767 |
permissions.add(new MBeanPermission("*", null, name, "getClassLoader")); |
|
768 |
ProtectionDomain protectionDomain = new ProtectionDomain(null, permissions); |
|
769 |
ProtectionDomain[] domains = {protectionDomain}; |
|
770 |
AccessControlContext ctx = new AccessControlContext(domains); |
|
771 |
ClassLoader loader = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() { |
|
772 |
public ClassLoader run() { |
|
773 |
return clr.getClassLoader(name); |
|
774 |
} |
|
775 |
}, ctx); |
|
776 |
return loader; |
|
777 |
} |
|
2 | 778 |
} |