ClassPathScanner.java

package org.mutabilitydetector.classpath;

/*
 * #%L
 * MutabilityDetector
 * %%
 * Copyright (C) 2008 - 2015 Graham Allan
 * %%
 * Licensed 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.
 * #L%
 */

import org.reflections.Reflections;

import javax.annotation.concurrent.Immutable;
import java.util.Set;

public final class ClassPathScanner {

    private ClassPathScanner() throws InstantiationException {
        throw new InstantiationException("This class is not created for instantiation");
    }

    public static Set<Class<?>> findImmutableClasses(final String packageName) {
        Reflections reflections = new Reflections(packageName);
        return reflections.getTypesAnnotatedWith(Immutable.class);
    }
}