diff -r 5daa5fbad3ce -r bd3b98a11a14 jdk/src/java.base/share/classes/sun/reflect/UnsafeFieldAccessorImpl.java --- a/jdk/src/java.base/share/classes/sun/reflect/UnsafeFieldAccessorImpl.java Fri Apr 15 16:19:14 2016 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,206 +0,0 @@ -/* - * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -package sun.reflect; - -import java.lang.reflect.Field; -import java.lang.reflect.Modifier; -import jdk.internal.misc.Unsafe; - -/** Base class for jdk.internal.misc.Unsafe-based FieldAccessors. The - observation is that there are only nine types of fields from the - standpoint of reflection code: the eight primitive types and - Object. Using class Unsafe instead of generated bytecodes saves - memory and loading time for the dynamically-generated - FieldAccessors. */ - -abstract class UnsafeFieldAccessorImpl extends FieldAccessorImpl { - static final Unsafe unsafe = Unsafe.getUnsafe(); - - protected final Field field; - protected final long fieldOffset; - protected final boolean isFinal; - - UnsafeFieldAccessorImpl(Field field) { - this.field = field; - if (Modifier.isStatic(field.getModifiers())) - fieldOffset = unsafe.staticFieldOffset(field); - else - fieldOffset = unsafe.objectFieldOffset(field); - isFinal = Modifier.isFinal(field.getModifiers()); - } - - protected void ensureObj(Object o) { - // NOTE: will throw NullPointerException, as specified, if o is null - if (!field.getDeclaringClass().isAssignableFrom(o.getClass())) { - throwSetIllegalArgumentException(o); - } - } - - private String getQualifiedFieldName() { - return field.getDeclaringClass().getName() + "." +field.getName(); - } - - protected IllegalArgumentException newGetIllegalArgumentException(String type) { - return new IllegalArgumentException( - "Attempt to get "+field.getType().getName()+" field \"" + - getQualifiedFieldName() + "\" with illegal data type conversion to "+type - ); - } - - protected void throwFinalFieldIllegalAccessException(String attemptedType, - String attemptedValue) - throws IllegalAccessException { - throw new IllegalAccessException(getSetMessage(attemptedType, attemptedValue)); - - } - protected void throwFinalFieldIllegalAccessException(Object o) throws IllegalAccessException { - throwFinalFieldIllegalAccessException(o != null ? o.getClass().getName() : "", ""); - } - - protected void throwFinalFieldIllegalAccessException(boolean z) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("boolean", Boolean.toString(z)); - } - - protected void throwFinalFieldIllegalAccessException(char b) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("char", Character.toString(b)); - } - - protected void throwFinalFieldIllegalAccessException(byte b) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("byte", Byte.toString(b)); - } - - protected void throwFinalFieldIllegalAccessException(short b) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("short", Short.toString(b)); - } - - protected void throwFinalFieldIllegalAccessException(int i) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("int", Integer.toString(i)); - } - - protected void throwFinalFieldIllegalAccessException(long i) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("long", Long.toString(i)); - } - - protected void throwFinalFieldIllegalAccessException(float f) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("float", Float.toString(f)); - } - - protected void throwFinalFieldIllegalAccessException(double f) throws IllegalAccessException { - throwFinalFieldIllegalAccessException("double", Double.toString(f)); - } - - protected IllegalArgumentException newGetBooleanIllegalArgumentException() { - return newGetIllegalArgumentException("boolean"); - } - - protected IllegalArgumentException newGetByteIllegalArgumentException() { - return newGetIllegalArgumentException("byte"); - } - - protected IllegalArgumentException newGetCharIllegalArgumentException() { - return newGetIllegalArgumentException("char"); - } - - protected IllegalArgumentException newGetShortIllegalArgumentException() { - return newGetIllegalArgumentException("short"); - } - - protected IllegalArgumentException newGetIntIllegalArgumentException() { - return newGetIllegalArgumentException("int"); - } - - protected IllegalArgumentException newGetLongIllegalArgumentException() { - return newGetIllegalArgumentException("long"); - } - - protected IllegalArgumentException newGetFloatIllegalArgumentException() { - return newGetIllegalArgumentException("float"); - } - - protected IllegalArgumentException newGetDoubleIllegalArgumentException() { - return newGetIllegalArgumentException("double"); - } - - protected String getSetMessage(String attemptedType, String attemptedValue) { - String err = "Can not set"; - if (Modifier.isStatic(field.getModifiers())) - err += " static"; - if (isFinal) - err += " final"; - err += " " + field.getType().getName() + " field " + getQualifiedFieldName() + " to "; - if (attemptedValue.length() > 0) { - err += "(" + attemptedType + ")" + attemptedValue; - } else { - if (attemptedType.length() > 0) - err += attemptedType; - else - err += "null value"; - } - return err; - } - - protected void throwSetIllegalArgumentException(String attemptedType, - String attemptedValue) { - throw new IllegalArgumentException(getSetMessage(attemptedType,attemptedValue)); - } - - protected void throwSetIllegalArgumentException(Object o) { - throwSetIllegalArgumentException(o != null ? o.getClass().getName() : "", ""); - } - - protected void throwSetIllegalArgumentException(boolean b) { - throwSetIllegalArgumentException("boolean", Boolean.toString(b)); - } - - protected void throwSetIllegalArgumentException(byte b) { - throwSetIllegalArgumentException("byte", Byte.toString(b)); - } - - protected void throwSetIllegalArgumentException(char c) { - throwSetIllegalArgumentException("char", Character.toString(c)); - } - - protected void throwSetIllegalArgumentException(short s) { - throwSetIllegalArgumentException("short", Short.toString(s)); - } - - protected void throwSetIllegalArgumentException(int i) { - throwSetIllegalArgumentException("int", Integer.toString(i)); - } - - protected void throwSetIllegalArgumentException(long l) { - throwSetIllegalArgumentException("long", Long.toString(l)); - } - - protected void throwSetIllegalArgumentException(float f) { - throwSetIllegalArgumentException("float", Float.toString(f)); - } - - protected void throwSetIllegalArgumentException(double d) { - throwSetIllegalArgumentException("double", Double.toString(d)); - } - -}