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("a");
120
121 public static void main(String[] args) throws Exception {
122
123 test("footrue", s + b);
124 test("foo42", s + by);
125 test("foo42", s + sh);
126 test("fooa", s + ch);
127 test("foo42", s + i);
128 test("foo42", s + l);
129 test("foo42.0", s + fl);
130 test("foo42.0", s + d);
131 test("foofoo", s + s);
132 test("foonull", s + sNull);
133 test("foobar", s + o);
134 test("foonull", s + oNull);
135 test("foobar", s + cs);
136
137 {
138 StringBuilder sb = new StringBuilder();
139 sb.append("foo");
140 sb.append(myArr.toString());
141 test(sb.toString(), s + myArr);
142 }
143
144 {
145 StringBuilder sb = new StringBuilder();
146 sb.append("foo");
147 sb.append(s_myArr.toString());
148 test(sb.toString(), s + s_myArr);
149 }
150
151 {
152 StringBuilder sb = new StringBuilder();
153 sb.append("foo[C@");
154 sb.append(Integer.toHexString(System.identityHashCode(chars)));
155 test(sb.toString(), s + chars);
156 }
157
158 test("fooa", s + ImplicitStringConcat.sb);
159 test("foonull", s + null);
160 test("fooMyClass", s + myCl);
161 test("foonull", s + myClNull);
162 test("fooMyClass", s + myCl2);
163
164 s = "foo"; s += b; test("footrue", s);
165 s = "foo"; s += by; test("foo42", s);
166 s = "foo"; s += sh; test("foo42", s);
167 s = "foo"; s += ch; test("fooa", s);
168 s = "foo"; s += i; test("foo42", s);
169 s = "foo"; s += l; test("foo42", s);
170 s = "foo"; s += fl; test("foo42.0", s);
171 s = "foo"; s += d; test("foo42.0", s);
172 s = "foo"; s += s; test("foofoo", s);
173 s = "foo"; s += sNull; test("foonull", s);
174 s = "foo"; s += o; test("foobar", s);
175 s = "foo"; s += oNull; test("foonull", s);
176 s = "foo"; s += cs; test("foobar", s);
177
178 {
179 StringBuilder sb = new StringBuilder();
180 sb.append("foo[C@");
181 sb.append(Integer.toHexString(System.identityHashCode(chars)));
182 s = "foo";
183 s += chars;
184 test(sb.toString(), s);
185 }
186
187 s = "foo"; s += ImplicitStringConcat.sb; test("fooa", s);
188 s = "foo"; s += null; test("foonull", s);
189 s = "foo"; s += myCl; test("fooMyClass", s);
190 s = "foo"; s += myCl2; test("fooMyClass", s);
191 }
192
193 public static void test(String expected, String actual) {
194 // Fingers crossed: String concat should work.
195 if (!expected.equals(actual)) {
196 StringBuilder sb = new StringBuilder();
197 sb.append("Expected = ");
198 sb.append(expected);
199 sb.append(", actual = ");
200 sb.append(actual);
201 throw new IllegalStateException(sb.toString());
202 }
203 }
204
205 static class MyClass {
206 public String toString() {
207 return "MyClass";
208 }
209 }
210
211 static class MyClassNull {
212 public String toString() {
213 return null;
214 }
215 }
216 }