1 /* 2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @summary test implicit String concatenations 27 * 28 * @compile ImplicitStringConcat.java 29 * @run main/othervm ImplicitStringConcat 30 * 31 * @compile -XDstringConcat=inline ImplicitStringConcat.java 32 * @run main/othervm ImplicitStringConcat 33 * 34 * @compile -XDstringConcat=indy -source 1.9 -target 1.9 ImplicitStringConcat.java 35 * 36 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcat 37 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcat 38 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcat 39 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcat 40 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcat 41 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcat 42 * 43 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 44 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 45 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 46 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 47 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 48 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 49 * 50 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 51 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 52 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 53 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 54 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 55 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 56 57 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 58 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 59 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 60 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 61 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 62 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 63 * 64 * @compile -XDstringConcat=indyWithConstants -source 1.9 -target 1.9 ImplicitStringConcat.java 65 * 66 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB ImplicitStringConcat 67 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED ImplicitStringConcat 68 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED ImplicitStringConcat 69 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT ImplicitStringConcat 70 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT ImplicitStringConcat 71 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT ImplicitStringConcat 72 * 73 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 74 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 75 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 76 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 77 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 78 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true ImplicitStringConcat 79 * 80 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 81 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 82 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 83 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 84 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 85 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 86 * 87 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 88 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 89 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 90 * @run main/othervm -Djava.lang.invoke.stringConcat=BC_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 91 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_SB_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 92 * @run main/othervm -Djava.lang.invoke.stringConcat=MH_INLINE_SIZED_EXACT -Djava.lang.invoke.stringConcat.debug=true -Djava.lang.invoke.stringConcat.cache=true ImplicitStringConcat 93 */ 94 import java.lang.StringBuilder; 95 96 public class ImplicitStringConcat { 97 98 static boolean b = true; 99 static byte by = 42; 100 static short sh = 42; 101 static char ch = 'a'; 102 static int i = 42; 103 static float fl = 42.0f; 104 static long l = 42; 105 static double d = 42.0d; 106 static String s = "foo"; 107 static String sNull = null; 108 static Object o = "bar"; 109 static Object oNull = null; 110 static CharSequence cs = "bar"; 111 static char[] chars = new char[] {'a'}; 112 113 static MyClass myCl = new MyClass(); 114 static MyClassNull myClNull = new MyClassNull(); 115 static Object myCl2 = new MyClass(); 116 static Object[] myArr = new Object[] { myCl }; 117 static final Object[] s_myArr = new Object[] { myCl }; 118 119 static StringBuffer sb = new StringBuffer(); 120 static { 121 sb.append('a'); 122 } 123 124 public static void main(String[] args) throws Exception { 125 126 test("footrue", s + b); 127 test("foo42", s + by); 128 test("foo42", s + sh); 129 test("fooa", s + ch); 130 test("foo42", s + i); 131 test("foo42", s + l); 132 test("foo42.0", s + fl); 133 test("foo42.0", s + d); 134 test("foofoo", s + s); 135 test("foonull", s + sNull); 136 test("foobar", s + o); 137 test("foonull", s + oNull); 138 test("foobar", s + cs); 139 140 { 141 StringBuilder sb = new StringBuilder(); 142 sb.append("foo"); 143 sb.append(myArr.toString()); 144 test(sb.toString(), s + myArr); 145 } 146 147 { 148 StringBuilder sb = new StringBuilder(); 149 sb.append("foo"); 150 sb.append(s_myArr.toString()); 151 test(sb.toString(), s + s_myArr); 152 } 153 154 { 155 StringBuilder sb = new StringBuilder(); 156 sb.append("foo[C@"); 157 sb.append(Integer.toHexString(System.identityHashCode(chars))); 158 test(sb.toString(), s + chars); 159 } 160 161 test("fooa", s + ImplicitStringConcat.sb); 162 test("foonull", s + null); 163 test("fooMyClass", s + myCl); 164 test("foonull", s + myClNull); 165 test("fooMyClass", s + myCl2); 166 167 s = "foo"; s += b; test("footrue", s); 168 s = "foo"; s += by; test("foo42", s); 169 s = "foo"; s += sh; test("foo42", s); 170 s = "foo"; s += ch; test("fooa", s); 171 s = "foo"; s += i; test("foo42", s); 172 s = "foo"; s += l; test("foo42", s); 173 s = "foo"; s += fl; test("foo42.0", s); 174 s = "foo"; s += d; test("foo42.0", s); 175 s = "foo"; s += s; test("foofoo", s); 176 s = "foo"; s += sNull; test("foonull", s); 177 s = "foo"; s += o; test("foobar", s); 178 s = "foo"; s += oNull; test("foonull", s); 179 s = "foo"; s += cs; test("foobar", s); 180 181 { 182 StringBuilder sb = new StringBuilder(); 183 sb.append("foo[C@"); 184 sb.append(Integer.toHexString(System.identityHashCode(chars))); 185 s = "foo"; 186 s += chars; 187 test(sb.toString(), s); 188 } 189 190 s = "foo"; s += ImplicitStringConcat.sb; test("fooa", s); 191 s = "foo"; s += null; test("foonull", s); 192 s = "foo"; s += myCl; test("fooMyClass", s); 193 s = "foo"; s += myCl2; test("fooMyClass", s); 194 } 195 196 public static void test(String expected, String actual) { 197 // Fingers crossed: String concat should work. 198 if (!expected.equals(actual)) { 199 StringBuilder sb = new StringBuilder(); 200 sb.append("Expected = "); 201 sb.append(expected); 202 sb.append(", actual = "); 203 sb.append(actual); 204 throw new IllegalStateException(sb.toString()); 205 } 206 } 207 208 static class MyClass { 209 public String toString() { 210 return "MyClass"; 211 } 212 } 213 214 static class MyClassNull { 215 public String toString() { 216 return null; 217 } 218 } 219 }