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src/java.xml/share/classes/com/sun/org/apache/bcel/internal/Repository.java
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@@ -1,8 +1,7 @@
/*
- * reserved comment block
- * DO NOT REMOVE OR ALTER!
+ * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
*/
/*
* 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.
@@ -16,191 +15,220 @@
* 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 com.sun.org.apache.bcel.internal;
import com.sun.org.apache.bcel.internal.classfile.JavaClass;
-import com.sun.org.apache.bcel.internal.util.*;
-import java.io.*;
+import com.sun.org.apache.bcel.internal.util.SyntheticRepository;
/**
* The repository maintains informations about class interdependencies, e.g.,
- * whether a class is a sub-class of another. Delegates actual class loading
- * to SyntheticRepository with current class path by default.
+ * whether a class is a sub-class of another. Delegates actual class loading to
+ * SyntheticRepository with current class path by default.
*
* @see com.sun.org.apache.bcel.internal.util.Repository
- * @see com.sun.org.apache.bcel.internal.util.SyntheticRepository
+ * @see SyntheticRepository
*
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @version $Id: Repository.java 1749603 2016-06-21 20:50:19Z ggregory $
*/
public abstract class Repository {
- private static com.sun.org.apache.bcel.internal.util.Repository _repository =
- SyntheticRepository.getInstance();
- /** @return currently used repository instance
+ private static com.sun.org.apache.bcel.internal.util.Repository repository
+ = SyntheticRepository.getInstance();
+
+ /**
+ * @return currently used repository instance
*/
public static com.sun.org.apache.bcel.internal.util.Repository getRepository() {
- return _repository;
+ return repository;
}
- /** Set repository instance to be used for class loading
+ /**
+ * Set repository instance to be used for class loading
*/
- public static void setRepository(com.sun.org.apache.bcel.internal.util.Repository rep) {
- _repository = rep;
+ public static void setRepository(final com.sun.org.apache.bcel.internal.util.Repository rep) {
+ repository = rep;
}
- /** Lookup class somewhere found on your CLASSPATH, or whereever the
+ /**
+ * Lookup class somewhere found on your CLASSPATH, or whereever the
* repository instance looks for it.
*
- * @return class object for given fully qualified class name, or null
- * if the class could not be found or parsed correctly
+ * @return class object for given fully qualified class name
+ * @throws ClassNotFoundException if the class could not be found or parsed
+ * correctly
*/
- public static JavaClass lookupClass(String class_name) {
- try {
- JavaClass clazz = _repository.findClass(class_name);
-
- if(clazz == null) {
- return _repository.loadClass(class_name);
- } else {
- return clazz;
- }
- } catch(ClassNotFoundException ex) { return null; }
+ public static JavaClass lookupClass(final String class_name)
+ throws ClassNotFoundException {
+ return repository.loadClass(class_name);
}
/**
- * Try to find class source via getResourceAsStream().
+ * Try to find class source using the internal repository instance.
+ *
* @see Class
* @return JavaClass object for given runtime class
+ * @throws ClassNotFoundException if the class could not be found or parsed
+ * correctly
*/
- public static JavaClass lookupClass(Class clazz) {
- try {
- return _repository.loadClass(clazz);
- } catch(ClassNotFoundException ex) { return null; }
+ public static JavaClass lookupClass(final Class<?> clazz)
+ throws ClassNotFoundException {
+ return repository.loadClass(clazz);
}
- /** Clear the repository.
+ /**
+ * Clear the repository.
*/
public static void clearCache() {
- _repository.clear();
+ repository.clear();
}
/**
- * Add clazz to repository if there isn't an equally named class already in there.
+ * Add clazz to repository if there isn't an equally named class already in
+ * there.
*
* @return old entry in repository
*/
- public static JavaClass addClass(JavaClass clazz) {
- JavaClass old = _repository.findClass(clazz.getClassName());
- _repository.storeClass(clazz);
+ public static JavaClass addClass(final JavaClass clazz) {
+ final JavaClass old = repository.findClass(clazz.getClassName());
+ repository.storeClass(clazz);
return old;
}
/**
* Remove class with given (fully qualified) name from repository.
*/
- public static void removeClass(String clazz) {
- _repository.removeClass(_repository.findClass(clazz));
+ public static void removeClass(final String clazz) {
+ repository.removeClass(repository.findClass(clazz));
}
/**
* Remove given class from repository.
*/
- public static void removeClass(JavaClass clazz) {
- _repository.removeClass(clazz);
+ public static void removeClass(final JavaClass clazz) {
+ repository.removeClass(clazz);
}
/**
- * @return list of super classes of clazz in ascending order, i.e.,
- * Object is always the last element
+ * @return list of super classes of clazz in ascending order, i.e., Object
+ * is always the last element
+ * @throws ClassNotFoundException if any of the superclasses can't be found
*/
- public static JavaClass[] getSuperClasses(JavaClass clazz) {
+ public static JavaClass[] getSuperClasses(final JavaClass clazz) throws ClassNotFoundException {
return clazz.getSuperClasses();
}
/**
- * @return list of super classes of clazz in ascending order, i.e.,
- * Object is always the last element. return "null", if class
- * cannot be found.
+ * @return list of super classes of clazz in ascending order, i.e., Object
+ * is always the last element.
+ * @throws ClassNotFoundException if the named class or any of its
+ * superclasses can't be found
*/
- public static JavaClass[] getSuperClasses(String class_name) {
- JavaClass jc = lookupClass(class_name);
- return (jc == null? null : getSuperClasses(jc));
+ public static JavaClass[] getSuperClasses(final String class_name) throws ClassNotFoundException {
+ final JavaClass jc = lookupClass(class_name);
+ return getSuperClasses(jc);
}
/**
- * @return all interfaces implemented by class and its super
- * classes and the interfaces that those interfaces extend, and so on.
- * (Some people call this a transitive hull).
+ * @return all interfaces implemented by class and its super classes and the
+ * interfaces that those interfaces extend, and so on. (Some people call
+ * this a transitive hull).
+ * @throws ClassNotFoundException if any of the class's superclasses or
+ * superinterfaces can't be found
*/
- public static JavaClass[] getInterfaces(JavaClass clazz) {
+ public static JavaClass[] getInterfaces(final JavaClass clazz) throws ClassNotFoundException {
return clazz.getAllInterfaces();
}
/**
- * @return all interfaces implemented by class and its super
- * classes and the interfaces that extend those interfaces, and so on
+ * @return all interfaces implemented by class and its super classes and the
+ * interfaces that extend those interfaces, and so on
+ * @throws ClassNotFoundException if the named class can't be found, or if
+ * any of its superclasses or superinterfaces can't be found
*/
- public static JavaClass[] getInterfaces(String class_name) {
+ public static JavaClass[] getInterfaces(final String class_name) throws ClassNotFoundException {
return getInterfaces(lookupClass(class_name));
}
/**
* Equivalent to runtime "instanceof" operator.
+ *
* @return true, if clazz is an instance of super_class
+ * @throws ClassNotFoundException if any superclasses or superinterfaces of
+ * clazz can't be found
*/
- public static boolean instanceOf(JavaClass clazz, JavaClass super_class) {
+ public static boolean instanceOf(final JavaClass clazz, final JavaClass super_class)
+ throws ClassNotFoundException {
return clazz.instanceOf(super_class);
}
/**
* @return true, if clazz is an instance of super_class
+ * @throws ClassNotFoundException if either clazz or super_class can't be
+ * found
*/
- public static boolean instanceOf(String clazz, String super_class) {
+ public static boolean instanceOf(final String clazz, final String super_class)
+ throws ClassNotFoundException {
return instanceOf(lookupClass(clazz), lookupClass(super_class));
}
/**
* @return true, if clazz is an instance of super_class
+ * @throws ClassNotFoundException if super_class can't be found
*/
- public static boolean instanceOf(JavaClass clazz, String super_class) {
+ public static boolean instanceOf(final JavaClass clazz, final String super_class)
+ throws ClassNotFoundException {
return instanceOf(clazz, lookupClass(super_class));
}
/**
* @return true, if clazz is an instance of super_class
+ * @throws ClassNotFoundException if clazz can't be found
*/
- public static boolean instanceOf(String clazz, JavaClass super_class) {
+ public static boolean instanceOf(final String clazz, final JavaClass super_class)
+ throws ClassNotFoundException {
return instanceOf(lookupClass(clazz), super_class);
}
/**
* @return true, if clazz is an implementation of interface inter
+ * @throws ClassNotFoundException if any superclasses or superinterfaces of
+ * clazz can't be found
*/
- public static boolean implementationOf(JavaClass clazz, JavaClass inter) {
+ public static boolean implementationOf(final JavaClass clazz, final JavaClass inter)
+ throws ClassNotFoundException {
return clazz.implementationOf(inter);
}
/**
* @return true, if clazz is an implementation of interface inter
+ * @throws ClassNotFoundException if clazz, inter, or any superclasses or
+ * superinterfaces of clazz can't be found
*/
- public static boolean implementationOf(String clazz, String inter) {
+ public static boolean implementationOf(final String clazz, final String inter)
+ throws ClassNotFoundException {
return implementationOf(lookupClass(clazz), lookupClass(inter));
}
/**
* @return true, if clazz is an implementation of interface inter
+ * @throws ClassNotFoundException if inter or any superclasses or
+ * superinterfaces of clazz can't be found
*/
- public static boolean implementationOf(JavaClass clazz, String inter) {
+ public static boolean implementationOf(final JavaClass clazz, final String inter)
+ throws ClassNotFoundException {
return implementationOf(clazz, lookupClass(inter));
}
/**
* @return true, if clazz is an implementation of interface inter
+ * @throws ClassNotFoundException if clazz or any superclasses or
+ * superinterfaces of clazz can't be found
*/
- public static boolean implementationOf(String clazz, JavaClass inter) {
+ public static boolean implementationOf(final String clazz, final JavaClass inter)
+ throws ClassNotFoundException {
return implementationOf(lookupClass(clazz), inter);
}
}
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