javax.el.JreCompat Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.el;
import java.lang.reflect.AccessibleObject;
/*
* This is cut down version of org.apache.tomcat.util.JreCompat that provides
* only the methods required by the EL implementation.
*
* This class is duplicated in org.apache.el.util
* When making changes keep the two in sync.
*/
class JreCompat {
private static final JreCompat instance;
static {
if (Jre9Compat.isSupported()) {
instance = new Jre9Compat();
} else {
instance = new JreCompat();
}
}
public static JreCompat getInstance() {
return instance;
}
/**
* Is the accessibleObject accessible (as a result of appropriate module exports) on the provided instance?
*
* @param base The specific instance to be tested.
* @param accessibleObject The method/field/constructor to be tested.
*
* @return {code true} if the AccessibleObject can be accessed otherwise {code false}
*/
public boolean canAccess(Object base, AccessibleObject accessibleObject) {
// Java 8 doesn't support modules so default to true
return true;
}
/**
* Is the given class in an exported package?
*
* @param type The class to test
*
* @return Always {@code true} for Java 8. {@code true} if the enclosing package is exported for Java 9+
*/
public boolean isExported(Class type) {
return true;
}
}