362 lines
16 KiB
Java
362 lines
16 KiB
Java
/*
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.Serializable;
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import java.lang.invoke.*;
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import java.util.concurrent.Callable;
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/**
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* @test
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* @summary Test input invariants for StringConcatFactory
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* @bug 8246152 8247681
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*
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* @compile StringConcatFactoryInvariants.java
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*
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* @run main/othervm -Xverify:all StringConcatFactoryInvariants
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*
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*/
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public class StringConcatFactoryInvariants {
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private static final char TAG_ARG = '\u0001';
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private static final char TAG_CONST = '\u0002';
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public static void main(String[] args) throws Throwable {
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MethodHandles.Lookup lookup = MethodHandles.lookup();
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String methodName = "foo";
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MethodType mt = MethodType.methodType(String.class, String.class, int.class);
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String recipe = "" + TAG_ARG + TAG_ARG + TAG_CONST;
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Object[][] constants = new Object[][] {
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new String[] { "" },
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new String[] { "bar" },
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new Integer[] { 1 },
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new Short[] { 2 },
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new Long[] { 3L },
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new Boolean[] { true },
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new Character[] { 'a' },
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new Byte[] { -128 },
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new Class[] { String.class },
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new MethodHandle[] { MethodHandles.constant(String.class, "constant") },
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new MethodType[] { MethodType.methodType(String.class) }
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};
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// The string representation that should end up if the corresponding
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// Object[] in constants is used as an argument to makeConcatWithConstants
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String[] constantString = new String[] {
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"",
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"bar",
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"1",
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"2",
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"3",
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"true",
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"a",
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"-128",
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"class java.lang.String",
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"MethodHandle()String",
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"()String"
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};
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final int LIMIT = 200;
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// Simple factory: check for dynamic arguments overflow
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Class<?>[] underThreshold = new Class<?>[LIMIT - 1];
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Class<?>[] threshold = new Class<?>[LIMIT];
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Class<?>[] overThreshold = new Class<?>[LIMIT + 1];
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StringBuilder sbUnderThreshold = new StringBuilder();
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sbUnderThreshold.append(TAG_CONST);
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for (int c = 0; c < LIMIT - 1; c++) {
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underThreshold[c] = int.class;
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threshold[c] = int.class;
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overThreshold[c] = int.class;
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sbUnderThreshold.append(TAG_ARG);
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}
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threshold[LIMIT - 1] = int.class;
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overThreshold[LIMIT - 1] = int.class;
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overThreshold[LIMIT] = int.class;
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String recipeEmpty = "";
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String recipeUnderThreshold = sbUnderThreshold.toString();
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String recipeThreshold = sbUnderThreshold.append(TAG_ARG).toString();
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String recipeOverThreshold = sbUnderThreshold.append(TAG_ARG).toString();
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MethodType mtEmpty = MethodType.methodType(String.class);
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MethodType mtUnderThreshold = MethodType.methodType(String.class, underThreshold);
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MethodType mtThreshold = MethodType.methodType(String.class, threshold);
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MethodType mtOverThreshold = MethodType.methodType(String.class, overThreshold);
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// Check the basic functionality is working
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{
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CallSite cs = StringConcatFactory.makeConcat(lookup, methodName, mt);
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test("foo42", (String) cs.getTarget().invokeExact("foo", 42));
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}
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{
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for (int i = 0; i < constants.length; i++) {
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CallSite cs = StringConcatFactory.makeConcatWithConstants(lookup, methodName, mt, recipe, constants[i]);
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test("foo42".concat(constantString[i]), (String) cs.getTarget().invokeExact("foo", 42));
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}
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}
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// Check unary expressions with pre- and postfix constants
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{
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String constArgRecipe = "" + TAG_CONST + TAG_ARG;
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String argConstRecipe = "" + TAG_ARG + TAG_CONST;
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MethodType unaryMt = MethodType.methodType(String.class, String.class);
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for (int i = 0; i < constants.length; i++) {
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CallSite prefixCS = StringConcatFactory.makeConcatWithConstants(lookup, methodName, unaryMt, constArgRecipe, constants[i]);
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test(constantString[i].concat("foo"), (String) prefixCS.getTarget().invokeExact("foo"));
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CallSite postfixCS = StringConcatFactory.makeConcatWithConstants(lookup, methodName, unaryMt, argConstRecipe, constants[i]);
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test("foo".concat(constantString[i]), (String) postfixCS.getTarget().invokeExact("foo"));
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}
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}
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// Simple factory, check for nulls:
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failNPE("Lookup is null",
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() -> StringConcatFactory.makeConcat(null, methodName, mt));
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failNPE("Method name is null",
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() -> StringConcatFactory.makeConcat(lookup, null, mt));
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failNPE("MethodType is null",
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() -> StringConcatFactory.makeConcat(lookup, methodName, null));
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// Advanced factory, check for nulls:
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for (int i = 0; i < constants.length; i++) {
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final Object[] consts = constants[i];
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failNPE("Lookup is null",
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() -> StringConcatFactory.makeConcatWithConstants(null, methodName, mt, recipe, consts));
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failNPE("Method name is null",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, null, mt, recipe, consts));
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failNPE("MethodType is null",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, null, recipe, consts));
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failNPE("Recipe is null",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mt, null, consts));
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}
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failNPE("Constants vararg is null",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mt, recipe, (Object[]) null));
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failNPE("Constant argument is null",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mt, recipe, new Object[] { null }));
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// Simple factory, check for return type
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fail("Return type: void",
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() -> StringConcatFactory.makeConcat(lookup, methodName, MethodType.methodType(void.class, String.class, int.class)));
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fail("Return type: int",
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() -> StringConcatFactory.makeConcat(lookup, methodName, MethodType.methodType(int.class, String.class, int.class)));
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fail("Return type: StringBuilder",
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() -> StringConcatFactory.makeConcat(lookup, methodName, MethodType.methodType(StringBuilder.class, String.class, int.class)));
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ok("Return type: Object",
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() -> StringConcatFactory.makeConcat(lookup, methodName, MethodType.methodType(Object.class, String.class, int.class)));
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ok("Return type: CharSequence",
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() -> StringConcatFactory.makeConcat(lookup, methodName, MethodType.methodType(CharSequence.class, String.class, int.class)));
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ok("Return type: Serializable",
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() -> StringConcatFactory.makeConcat(lookup, methodName, MethodType.methodType(Serializable.class, String.class, int.class)));
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// Advanced factory, check for return types
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for (int i = 0; i < constants.length; i++) {
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final Object[] consts = constants[i];
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fail("Return type: void",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(void.class, String.class, int.class), recipe, consts));
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fail("Return type: int",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(int.class, String.class, int.class), recipe, consts));
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fail("Return type: StringBuilder",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(StringBuilder.class, String.class, int.class), recipe, consts));
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ok("Return type: Object",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(Object.class, String.class, int.class), recipe, consts));
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ok("Return type: CharSequence",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(CharSequence.class, String.class, int.class), recipe, consts));
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ok("Return type: Serializable",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(Serializable.class, String.class, int.class), recipe, consts));
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}
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// Simple factory: check for dynamic arguments overflow
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ok("Dynamic arguments is under limit",
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() -> StringConcatFactory.makeConcat(lookup, methodName, mtUnderThreshold));
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ok("Dynamic arguments is at the limit",
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() -> StringConcatFactory.makeConcat(lookup, methodName, mtThreshold));
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fail("Dynamic arguments is over the limit",
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() -> StringConcatFactory.makeConcat(lookup, methodName, mtOverThreshold));
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// Advanced factory: check for dynamic arguments overflow
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ok("Dynamic arguments is under limit",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtUnderThreshold, recipeUnderThreshold, constants[0]));
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ok("Dynamic arguments is at the limit",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeThreshold, constants[0]));
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fail("Dynamic arguments is over the limit",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtOverThreshold, recipeOverThreshold, constants[0]));
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// Advanced factory: check for mismatched recipe and Constants
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ok("Static arguments and recipe match",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeThreshold, "bar"));
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fail("Static arguments and recipe mismatch: too few",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeThreshold));
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fail("Static arguments and recipe mismatch: too many",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeThreshold, "bar", "baz"));
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failNPE("Static arguments and recipe mismatch, too many, overflowing constant is null",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeThreshold, "bar", null));
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// Advanced factory: check for mismatched recipe and dynamic arguments
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fail("Dynamic arguments and recipe mismatch",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeUnderThreshold, constants[0]));
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ok("Dynamic arguments and recipe match",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeThreshold, constants[0]));
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fail("Dynamic arguments and recipe mismatch",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtThreshold, recipeOverThreshold, constants[0]));
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// Test passing array as constant
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{
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Object[] arg = {"boo", "bar"};
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CallSite cs1 = StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(String.class, int.class), "" + TAG_ARG + TAG_CONST + TAG_CONST, arg);
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test("42boobar", (String) cs1.getTarget().invokeExact(42));
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}
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// Test passing null constant
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ok("Can pass regular constants",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(String.class, int.class), "" + TAG_ARG + TAG_CONST, "foo"));
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failNPE("Cannot pass null constants",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, MethodType.methodType(String.class, int.class), "" + TAG_ARG + TAG_CONST, new Object[]{null}));
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// Simple factory: test empty arguments
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ok("Ok to pass empty arguments",
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() -> StringConcatFactory.makeConcat(lookup, methodName, mtEmpty));
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// Advanced factory: test empty arguments
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ok("Ok to pass empty arguments",
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() -> StringConcatFactory.makeConcatWithConstants(lookup, methodName, mtEmpty, recipeEmpty));
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// Simple factory: public Lookup is rejected
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fail("Passing public Lookup",
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() -> StringConcatFactory.makeConcat(MethodHandles.publicLookup(), methodName, mtEmpty));
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// Advanced factory: public Lookup is rejected
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fail("Passing public Lookup",
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() -> StringConcatFactory.makeConcatWithConstants(MethodHandles.publicLookup(), methodName, mtEmpty, recipeEmpty));
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// Zero inputs
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{
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MethodType zero = MethodType.methodType(String.class);
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CallSite cs = StringConcatFactory.makeConcat(lookup, methodName, zero);
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test("", (String) cs.getTarget().invokeExact());
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cs = StringConcatFactory.makeConcatWithConstants(lookup, methodName, zero, "");
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test("", (String) cs.getTarget().invokeExact());
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}
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// One input
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{
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MethodType zero = MethodType.methodType(String.class);
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MethodType one = MethodType.methodType(String.class, String.class);
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CallSite cs = StringConcatFactory.makeConcat(lookup, methodName, one);
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test("A", (String) cs.getTarget().invokeExact("A"));
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cs = StringConcatFactory.makeConcatWithConstants(lookup, methodName, one, "\1");
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test("A", (String) cs.getTarget().invokeExact("A"));
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cs = StringConcatFactory.makeConcatWithConstants(lookup, methodName, zero, "\2", "A");
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test("A", (String) cs.getTarget().invokeExact());
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}
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}
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public static void ok(String msg, Callable runnable) {
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try {
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runnable.call();
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} catch (Throwable e) {
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e.printStackTrace();
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throw new IllegalStateException(msg + ", should have passed", e);
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}
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}
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public static void fail(String msg, Callable runnable) {
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boolean expected = false;
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try {
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runnable.call();
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} catch (StringConcatException e) {
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expected = true;
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} catch (Throwable e) {
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e.printStackTrace();
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}
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if (!expected) {
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throw new IllegalStateException(msg + ", should have failed with StringConcatException");
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}
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}
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public static void failNPE(String msg, Callable runnable) {
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boolean expected = false;
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try {
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runnable.call();
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} catch (NullPointerException e) {
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expected = true;
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} catch (Throwable e) {
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e.printStackTrace();
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}
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if (!expected) {
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throw new IllegalStateException(msg + ", should have failed with NullPointerException");
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}
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}
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public static void test(String expected, String actual) {
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// Fingers crossed: String concat should work.
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if (!expected.equals(actual)) {
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StringBuilder sb = new StringBuilder();
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sb.append("Expected = ");
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sb.append(expected);
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sb.append(", actual = ");
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sb.append(actual);
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throw new IllegalStateException(sb.toString());
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}
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}
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}
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