Thu, 30 Jul 2009 10:29:53 +0100
6827648: Extremely slow compilation time for visitor pattern code + generics
Summary: Javac unnecessarily recomputates type-substitutions multiple times
Reviewed-by: jjg
1 /*
2 * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
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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).
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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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
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22 */
24 /**
25 * @test
26 * @bug 6717241
27 * @summary some diagnostic argument is prematurely converted into a String object
28 * @author Maurizio Cimadamore
29 * @compile/fail/ref=T6717241a.out -XDstdout -XDrawDiagnostics T6717241a.java
30 */
32 class T6717241a<X extends Object & java.io.Serializable> {
33 X x;
34 void test() {
35 //this will generate a 'cant.resolve'
36 Object o = x.v;
37 //this will generate a 'cant.resolve.args'
38 x.m1(1, "");
39 //this will generate a 'cant.resolve.args.params'
40 x.<Integer,Double>m2(1, "");
41 }
42 }