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test/tools/javac/lambda/methodReferenceExecution/MethodReferenceTestVarArgsSuper.java@c09b7234cded (annotated)

test/tools/javac/lambda/methodReferenceExecution/MethodReferenceTestVarArgsSuper.java

Tue, 14 May 2013 11:11:09 -0700

author
rfield
date
Tue, 14 May 2013 11:11:09 -0700
changeset 1752
c09b7234cded
parent 0
959103a6100f
permissions
-rw-r--r--

8012556: Implement lambda methods on interfaces as static
8006140: Javac NPE compiling Lambda expression on initialization expression of static field in interface
Summary: Lambdas occurring in static contexts or those not needing instance information should be generated into static methods. This has long been the case for classes. However, as a work-around to the lack of support for statics on interfaces, interface lambda methods have been generated into default methods. For lambdas in interface static contexts (fields and static methods) this causes an NPE in javac because there is no 'this'. MethodHandles now support static methods on interfaces. This changeset allows lambda methods to be generated as static interface methods. An existing bug in Hotspot (8013875) is exposed in a test when the "-esa" flag is used. This test and another test that already exposed this bug have been marked with @ignore.
Reviewed-by: mcimadamore

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 /**
aoqi@0 27 * @test
aoqi@0 28 * @bug 8003639
aoqi@0 29 * @summary convert lambda testng tests to jtreg and add them
aoqi@0 30 * @run testng MethodReferenceTestVarArgsSuper
aoqi@0 31 */
aoqi@0 32
aoqi@0 33 import org.testng.annotations.Test;
aoqi@0 34 import java.lang.reflect.Array;
aoqi@0 35
aoqi@0 36 import static org.testng.Assert.assertEquals;
aoqi@0 37
aoqi@0 38 /**
aoqi@0 39 * @author Robert Field
aoqi@0 40 */
aoqi@0 41
aoqi@0 42 class MethodReferenceTestVarArgsSuper_Sub {
aoqi@0 43
aoqi@0 44 String xvI(Integer... vi) {
aoqi@0 45 StringBuilder sb = new StringBuilder("xvI:");
aoqi@0 46 for (Integer i : vi) {
aoqi@0 47 sb.append(i);
aoqi@0 48 sb.append("-");
aoqi@0 49 }
aoqi@0 50 return sb.toString();
aoqi@0 51 }
aoqi@0 52
aoqi@0 53 String xIvI(Integer f, Integer... vi) {
aoqi@0 54 StringBuilder sb = new StringBuilder("xIvI:");
aoqi@0 55 sb.append(f);
aoqi@0 56 for (Integer i : vi) {
aoqi@0 57 sb.append(i);
aoqi@0 58 sb.append("-");
aoqi@0 59 }
aoqi@0 60 return sb.toString();
aoqi@0 61 }
aoqi@0 62
aoqi@0 63 String xvi(int... vi) {
aoqi@0 64 int sum = 0;
aoqi@0 65 for (int i : vi) {
aoqi@0 66 sum += i;
aoqi@0 67 }
aoqi@0 68 return "xvi:" + sum;
aoqi@0 69 }
aoqi@0 70
aoqi@0 71 String xIvi(Integer f, int... vi) {
aoqi@0 72 int sum = 0;
aoqi@0 73 for (int i : vi) {
aoqi@0 74 sum += i;
aoqi@0 75 }
aoqi@0 76 return "xIvi:(" + f + ")" + sum;
aoqi@0 77 }
aoqi@0 78
aoqi@0 79 String xvO(Object... vi) {
aoqi@0 80 StringBuilder sb = new StringBuilder("xvO:");
aoqi@0 81 for (Object i : vi) {
aoqi@0 82 if (i.getClass().isArray()) {
aoqi@0 83 sb.append("[");
aoqi@0 84 int len = Array.getLength(i);
aoqi@0 85 for (int x = 0; x < len; ++x) {
aoqi@0 86 sb.append(Array.get(i, x));
aoqi@0 87 sb.append(",");
aoqi@0 88 }
aoqi@0 89 sb.append("]");
aoqi@0 90
aoqi@0 91 } else {
aoqi@0 92 sb.append(i);
aoqi@0 93 }
aoqi@0 94 sb.append("*");
aoqi@0 95 }
aoqi@0 96 return sb.toString();
aoqi@0 97 }
aoqi@0 98 }
aoqi@0 99
aoqi@0 100 @Test
aoqi@0 101 public class MethodReferenceTestVarArgsSuper extends MethodReferenceTestVarArgsSuper_Sub {
aoqi@0 102
aoqi@0 103 interface SPRII { String m(Integer a, Integer b); }
aoqi@0 104
aoqi@0 105 interface SPRiii { String m(int a, int b, int c); }
aoqi@0 106
aoqi@0 107 interface SPRi { String m(int a); }
aoqi@0 108
aoqi@0 109 interface SPRaO { String m(Object[] a); }
aoqi@0 110
aoqi@0 111 interface SPRai { String m(int[] a); }
aoqi@0 112
aoqi@0 113 interface SPRvi { String m(int... va); }
aoqi@0 114
aoqi@0 115 String xvI(Integer... vi) {
aoqi@0 116 return "ERROR";
aoqi@0 117 }
aoqi@0 118
aoqi@0 119 String xIvI(Integer f, Integer... vi) {
aoqi@0 120 return "ERROR";
aoqi@0 121 }
aoqi@0 122
aoqi@0 123 String xvi(int... vi) {
aoqi@0 124 return "ERROR";
aoqi@0 125 }
aoqi@0 126
aoqi@0 127 String xIvi(Integer f, int... vi) {
aoqi@0 128 return "ERROR";
aoqi@0 129 }
aoqi@0 130
aoqi@0 131 String xvO(Object... vi) {
aoqi@0 132 return "ERROR";
aoqi@0 133 }
aoqi@0 134
aoqi@0 135 // These should be processed as var args
aoqi@0 136
aoqi@0 137 public void testVarArgsSPRSuperclass() {
aoqi@0 138 SPRII q;
aoqi@0 139
aoqi@0 140 q = super::xvO;
aoqi@0 141 assertEquals(q.m(55,66), "xvO:55*66*");
aoqi@0 142 }
aoqi@0 143
aoqi@0 144 public void testVarArgsSPRArray() {
aoqi@0 145 SPRai q;
aoqi@0 146
aoqi@0 147 q = super::xvO;
aoqi@0 148 assertEquals(q.m(new int[] { 55,66 } ), "xvO:[55,66,]*");
aoqi@0 149 }
aoqi@0 150
aoqi@0 151 public void testVarArgsSPRII() {
aoqi@0 152 SPRII q;
aoqi@0 153
aoqi@0 154 q = super::xvI;
aoqi@0 155 assertEquals(q.m(33,7), "xvI:33-7-");
aoqi@0 156
aoqi@0 157 q = super::xIvI;
aoqi@0 158 assertEquals(q.m(50,40), "xIvI:5040-");
aoqi@0 159
aoqi@0 160 q = super::xvi;
aoqi@0 161 assertEquals(q.m(100,23), "xvi:123");
aoqi@0 162
aoqi@0 163 q = super::xIvi;
aoqi@0 164 assertEquals(q.m(9,21), "xIvi:(9)21");
aoqi@0 165 }
aoqi@0 166
aoqi@0 167 public void testVarArgsSPRiii() {
aoqi@0 168 SPRiii q;
aoqi@0 169
aoqi@0 170 q = super::xvI;
aoqi@0 171 assertEquals(q.m(3, 2, 1), "xvI:3-2-1-");
aoqi@0 172
aoqi@0 173 q = super::xIvI;
aoqi@0 174 assertEquals(q.m(888, 99, 2), "xIvI:88899-2-");
aoqi@0 175
aoqi@0 176 q = super::xvi;
aoqi@0 177 assertEquals(q.m(900,80,7), "xvi:987");
aoqi@0 178
aoqi@0 179 q = super::xIvi;
aoqi@0 180 assertEquals(q.m(333,27, 72), "xIvi:(333)99");
aoqi@0 181 }
aoqi@0 182
aoqi@0 183 public void testVarArgsSPRi() {
aoqi@0 184 SPRi q;
aoqi@0 185
aoqi@0 186 q = super::xvI;
aoqi@0 187 assertEquals(q.m(3), "xvI:3-");
aoqi@0 188
aoqi@0 189 q = super::xIvI;
aoqi@0 190 assertEquals(q.m(888), "xIvI:888");
aoqi@0 191
aoqi@0 192 q = super::xvi;
aoqi@0 193 assertEquals(q.m(900), "xvi:900");
aoqi@0 194
aoqi@0 195 q = super::xIvi;
aoqi@0 196 assertEquals(q.m(333), "xIvi:(333)0");
aoqi@0 197 }
aoqi@0 198
aoqi@0 199 // These should NOT be processed as var args
aoqi@0 200
aoqi@0 201 public void testVarArgsSPRaO() {
aoqi@0 202 SPRaO q;
aoqi@0 203
aoqi@0 204 q = super::xvO;
aoqi@0 205 assertEquals(q.m(new String[] { "yo", "there", "dude" }), "xvO:yo*there*dude*");
aoqi@0 206 }
aoqi@0 207 }

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