/* * Copyright 2014 - 2017 Blazebit. * * 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 com.blazebit.persistence.view.impl.proxy; import java.lang.reflect.Field; //CHECKSTYLE:OFF: IllegalImport import sun.misc.Unsafe; //CHECKSTYLE:ON: IllegalImport /** * * @author Christian Beikov * @since 1.0.6 */ public class UnsafeHelper { private static final Unsafe UNSAFE; private UnsafeHelper() { } static { Field f; try { f = Unsafe.class.getDeclaredField("theUnsafe"); f.setAccessible(true); UNSAFE = (Unsafe) f.get(null); } catch (Exception e) { throw new RuntimeException(e); } } public static Class<?> define(String name, byte[] bytes, final Class<?> declaringClass) { try { ClassLoader newLoader = declaringClass.getClassLoader(); return UNSAFE.defineClass(name, bytes, 0, bytes.length, newLoader, null); } catch (Exception e) { throw new RuntimeException(e); } } }