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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
/*
* @test
* @bug 6893943 6937318
* @summary exit code from javah with no args is 0
*/
import java.io.*;
import java.util.*;
public class T6893943 {
static final String[] NO_ARGS = { };
static final String[] HELP = { "-help" };
static final String NEWLINE = System.getProperty("line.separator");
public static void main(String... args) throws Exception {
new T6893943().run();
}
void run() throws Exception {
testSimpleAPI(NO_ARGS, 1);
testSimpleAPI(HELP, 0);
testCommand(NO_ARGS, 1);
testCommand(HELP, 0);
}
void testSimpleAPI(String[] args, int expect_rc) throws Exception {
System.err.println("Test simple api: " + Arrays.asList(args));
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
int rc = com.sun.tools.javah.Main.run(args, pw);
pw.close();
expect("testSimpleAPI", sw.toString(), rc, expect_rc);
}
void testCommand(String[] args, int expect_rc) throws Exception {
System.err.println("Test command: " + Arrays.asList(args));
File javaHome = new File(System.getProperty("java.home"));
if (javaHome.getName().equals("jre"))
javaHome = javaHome.getParentFile();
List<String> command = new ArrayList<String>();
command.add(new File(new File(javaHome, "bin"), "javah").getPath());
command.add("-J-Xbootclasspath:" + System.getProperty("sun.boot.class.path"));
command.addAll(Arrays.asList(args));
//System.err.println("command: " + command);
ProcessBuilder pb = new ProcessBuilder(command);
pb.redirectErrorStream(true);
Process p = pb.start();
p.getOutputStream().close();
StringWriter sw = new StringWriter();
String line;
BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = in.readLine()) != null)
sw.write(line + NEWLINE);
int rc = p.waitFor();
expect("testCommand", sw.toString(), rc, expect_rc);
}
void expect(String name, String out, int actual_rc, int expect_rc) throws Exception {
if (out.isEmpty())
throw new Exception("No output from javah");
if (!out.startsWith("Usage:")) {
System.err.println(out);
throw new Exception("Unexpected output from javah");
}
if (actual_rc != expect_rc)
throw new Exception(name + ": unexpected exit: " + actual_rc + ", expected: " + expect_rc);
}
}