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 /* @test
25 * @bug 4531526
26 * @summary Test that more than one debuggee cannot bind to same port
27 * at the same time.
28 * @library /test/lib
29 *
30 * @modules java.management
31 * jdk.jdi
32 * @build VMConnection ExclusiveBind HelloWorld
33 * @run driver ExclusiveBind
34 */
35 import java.net.ServerSocket;
36 import com.sun.jdi.Bootstrap;
37 import com.sun.jdi.VirtualMachine;
38 import com.sun.jdi.connect.Connector;
39 import com.sun.jdi.connect.AttachingConnector;
40
41 import java.util.ArrayList;
42 import java.util.Map;
43 import java.util.List;
44 import java.util.Iterator;
45 import java.util.concurrent.TimeUnit;
46
47 import jdk.test.lib.process.ProcessTools;
48 import jdk.test.lib.Utils;
49
50 public class ExclusiveBind {
51 /*
52 * Find a connector by name
53 */
54 private static Connector findConnector(String name) {
55 List connectors = Bootstrap.virtualMachineManager().allConnectors();
56 Iterator iter = connectors.iterator();
57 while (iter.hasNext()) {
58 Connector connector = (Connector)iter.next();
59 if (connector.name().equals(name)) {
60 return connector;
61 }
62 }
63 return null;
64 }
65
72 for(String dbgOption : VMConnection.getDebuggeeVMOptions().split(" ")) {
73 if (!dbgOption.trim().isEmpty()) {
74 args.add(dbgOption);
75 }
76 }
77 String lib = "-agentlib:jdwp=transport=dt_socket,server=y,suspend=";
78 if (suspend) {
79 lib += "y";
80 } else {
81 lib += "n";
82 }
83 lib += ",address=" + address;
84
85 args.add(lib);
86 args.add(class_name);
87
88 return ProcessTools.createJavaProcessBuilder(args.toArray(new String[args.size()]));
89 }
90
91 /*
92 * - pick a TCP port
93 * - Launch a debuggee in server=y,suspend=y,address=${port}
94 * - Launch a second debuggee in server=y,suspend=n with the same port
95 * - Second debuggee should fail with an error (address already in use)
96 * - For clean-up we attach to the first debuggee and resume it.
97 */
98 public static void main(String args[]) throws Exception {
99 // find a free port
100 ServerSocket ss = new ServerSocket(0);
101 int port = ss.getLocalPort();
102 ss.close();
103
104 String address = String.valueOf(port);
105
106 // launch the first debuggee
107 ProcessBuilder process1 = prepareLauncher(address, true, "HelloWorld");
108 // start the debuggee and wait for the "ready" message
109 Process p = ProcessTools.startProcess(
110 "process1",
111 process1,
112 line -> line.equals("Listening for transport dt_socket at address: " + address),
113 Utils.adjustTimeout(5000),
114 TimeUnit.MILLISECONDS
115 );
116
117 // launch a second debuggee with the same address
118 ProcessBuilder process2 = prepareLauncher(address, false, "HelloWorld");
119
120 // get exit status from second debuggee
121 int exitCode = ProcessTools.startProcess("process2", process2).waitFor();
122
123 // clean-up - attach to first debuggee and resume it
124 AttachingConnector conn = (AttachingConnector)findConnector("com.sun.jdi.SocketAttach");
125 Map conn_args = conn.defaultArguments();
126 Connector.IntegerArgument port_arg =
127 (Connector.IntegerArgument)conn_args.get("port");
128 port_arg.setValue(port);
129 VirtualMachine vm = conn.attach(conn_args);
130 vm.resume();
131
132 // if the second debuggee ran to completion then we've got a problem
133 if (exitCode == 0) {
134 throw new RuntimeException("Test failed - second debuggee didn't fail to bind");
135 } else {
136 System.out.println("Test passed - second debuggee correctly failed to bind");
|
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 /* @test
25 * @bug 4531526
26 * @summary Test that more than one debuggee cannot bind to same port
27 * at the same time.
28 * @library /test/lib
29 *
30 * @modules java.management
31 * jdk.jdi
32 * @build VMConnection ExclusiveBind HelloWorld
33 * @run driver ExclusiveBind
34 */
35 import com.sun.jdi.Bootstrap;
36 import com.sun.jdi.VirtualMachine;
37 import com.sun.jdi.connect.Connector;
38 import com.sun.jdi.connect.AttachingConnector;
39
40 import java.util.ArrayList;
41 import java.util.Map;
42 import java.util.List;
43 import java.util.Iterator;
44 import java.util.concurrent.TimeUnit;
45 import java.util.regex.Matcher;
46 import java.util.regex.Pattern;
47
48 import jdk.test.lib.process.ProcessTools;
49 import jdk.test.lib.Utils;
50
51 public class ExclusiveBind {
52 /*
53 * Find a connector by name
54 */
55 private static Connector findConnector(String name) {
56 List connectors = Bootstrap.virtualMachineManager().allConnectors();
57 Iterator iter = connectors.iterator();
58 while (iter.hasNext()) {
59 Connector connector = (Connector)iter.next();
60 if (connector.name().equals(name)) {
61 return connector;
62 }
63 }
64 return null;
65 }
66
73 for(String dbgOption : VMConnection.getDebuggeeVMOptions().split(" ")) {
74 if (!dbgOption.trim().isEmpty()) {
75 args.add(dbgOption);
76 }
77 }
78 String lib = "-agentlib:jdwp=transport=dt_socket,server=y,suspend=";
79 if (suspend) {
80 lib += "y";
81 } else {
82 lib += "n";
83 }
84 lib += ",address=" + address;
85
86 args.add(lib);
87 args.add(class_name);
88
89 return ProcessTools.createJavaProcessBuilder(args.toArray(new String[args.size()]));
90 }
91
92 /*
93 * - Launch a debuggee in server=y,suspend=y,address=0
94 * - Parse listening port
95 * - Launch a second debuggee in server=y,suspend=n with the parsed port
96 * - Second debuggee should fail with an error (address already in use)
97 * - For clean-up we attach to the first debuggee and resume it.
98 */
99 public static void main(String args[]) throws Exception {
100 // launch the first debuggee
101 ProcessBuilder process1 = prepareLauncher("0", true, "HelloWorld");
102 // start the debuggee and wait for the "ready" message
103 Pattern listenRegexp = Pattern.compile("Listening for transport \\b(.+)\\b at address: \\b(\\d+)\\b");
104 // debuggeeListen[0] - transport, debuggeeListen[1] - address
105 String[] debuggeeListen = new String[2];
106 Process p = ProcessTools.startProcess(
107 "process1",
108 process1,
109 line -> { // warm-up predicate
110 Matcher m = listenRegexp.matcher(line);
111 if (!m.matches()) {
112 return false;
113 }
114 debuggeeListen[0] = m.group(1);
115 debuggeeListen[1] = m.group(2);
116 return true;
117 },
118
119 Utils.adjustTimeout(30),
120 TimeUnit.SECONDS
121 );
122
123 String address = debuggeeListen[1];
124 int port = Integer.parseInt(address);
125 // launch a second debuggee with the same address
126 ProcessBuilder process2 = prepareLauncher(address, false, "HelloWorld");
127
128 // get exit status from second debuggee
129 int exitCode = ProcessTools.startProcess("process2", process2).waitFor();
130
131 // clean-up - attach to first debuggee and resume it
132 AttachingConnector conn = (AttachingConnector)findConnector("com.sun.jdi.SocketAttach");
133 Map conn_args = conn.defaultArguments();
134 Connector.IntegerArgument port_arg =
135 (Connector.IntegerArgument)conn_args.get("port");
136 port_arg.setValue(port);
137 VirtualMachine vm = conn.attach(conn_args);
138 vm.resume();
139
140 // if the second debuggee ran to completion then we've got a problem
141 if (exitCode == 0) {
142 throw new RuntimeException("Test failed - second debuggee didn't fail to bind");
143 } else {
144 System.out.println("Test passed - second debuggee correctly failed to bind");
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