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1 /* |
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2 * Copyright (c) 2008, 2016, 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 4876942 6715251 |
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27 * @summary javap invoked without args does not print help screen |
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28 * @modules jdk.jdeps/com.sun.tools.javap |
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29 */ |
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30 |
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31 import java.io.*; |
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32 import java.util.zip.*; |
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33 |
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34 public class T4876942 { |
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35 public static void main(String[] args) throws Exception { |
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36 new T4876942().run(); |
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37 } |
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38 |
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39 public void run() throws IOException { |
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40 String output = javap(); |
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41 verify(output, "-public", "-protected", "-private"); // check that some of the options are listed |
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42 |
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43 if (errors > 0) |
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44 throw new Error(errors + " found."); |
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45 } |
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46 |
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47 String javap(String... args) { |
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48 StringWriter sw = new StringWriter(); |
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49 PrintWriter out = new PrintWriter(sw); |
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50 //sun.tools.javap.Main.entry(args); |
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51 int rc = com.sun.tools.javap.Main.run(args, out); |
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52 if (rc != (args.length == 0 ? 2 : 0)) |
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53 throw new Error("javap failed. rc=" + rc); |
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54 out.close(); |
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55 return sw.toString(); |
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56 } |
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57 |
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58 void verify(String output, String... expects) { |
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59 for (String expect: expects) { |
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60 if (output.indexOf(expect)< 0) |
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61 error(expect + " not found"); |
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62 } |
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63 } |
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64 |
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65 void error(String msg) { |
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66 System.err.println(msg); |
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67 errors++; |
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68 } |
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69 |
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70 int errors; |
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71 } |