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1 /* |
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @bug 8046060 |
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27 * @summary Different results of floating point multiplication for lambda code block |
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28 */ |
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29 |
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30 import java.io.*; |
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31 import java.net.URL; |
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32 import com.sun.tools.classfile.*; |
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33 import static com.sun.tools.classfile.AccessFlags.ACC_STRICT; |
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34 |
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35 public class LambdaTestStrictFPFlag { |
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36 public static void main(String[] args) throws Exception { |
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37 new LambdaTestStrictFPFlag().run(); |
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38 } |
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39 |
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40 void run() throws Exception { |
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41 ClassFile cf = getClassFile("LambdaTestStrictFPFlag$Test.class"); |
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42 ConstantPool cp = cf.constant_pool; |
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43 boolean found = false; |
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44 for (Method meth: cf.methods) { |
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45 if (meth.getName(cp).startsWith("lambda$")) { |
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46 if ((meth.access_flags.flags & ACC_STRICT) == 0) { |
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47 throw new Exception("strict flag missing from lambda"); |
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48 } |
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49 found = true; |
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50 } |
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51 } |
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52 if (!found) { |
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53 throw new Exception("did not find lambda method"); |
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54 } |
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55 } |
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56 |
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57 ClassFile getClassFile(String name) throws IOException, ConstantPoolException { |
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58 URL url = getClass().getResource(name); |
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59 InputStream in = url.openStream(); |
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60 try { |
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61 return ClassFile.read(in); |
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62 } finally { |
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63 in.close(); |
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64 } |
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65 } |
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66 |
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67 class Test { |
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68 strictfp void test() { |
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69 Face itf = () -> { }; |
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70 } |
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71 } |
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72 |
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73 interface Face { |
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74 void m(); |
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75 } |
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76 } |