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Apache License
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/** * Copyright 2006-2015 the original author or authors. */*from w w w. j a v a 2s . co m*/ * 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. */ package org.objenesis.instantiator.basic; import java.lang.reflect.Constructor; import org.objenesis.ObjenesisException; import org.objenesis.instantiator.ObjectInstantiator; /** * Instantiates a class by grabbing the no args constructor and calling Constructor.newInstance(). * This can deal with default public constructors, but that's about it. * * @author Joe Walnes * @param <T> Type instantiated * @see ObjectInstantiator */ public class ConstructorInstantiator<T> implements ObjectInstantiator<T> { protected Constructor<T> constructor; public ConstructorInstantiator(Class<T> type) { try { constructor = type.getDeclaredConstructor((Class[]) null); } catch(Exception e) { throw new ObjenesisException(e); } } public T newInstance() { try { return constructor.newInstance((Object[]) null); } catch(Exception e) { throw new ObjenesisException(e); } } }