12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.tools.jstack;
27
28 import java.io.InputStream;
29 import java.util.Collection;
30
31 import com.sun.tools.attach.VirtualMachine;
32 import com.sun.tools.attach.VirtualMachineDescriptor;
33 import sun.tools.attach.HotSpotVirtualMachine;
34 import sun.tools.common.ProcessArgumentMatcher;
35
36 /*
37 * This class is the main class for the JStack utility. It parses its arguments
38 * and decides if the command should be executed by the SA JStack tool or by
39 * obtained the thread dump from a target process using the VM attach mechanism
40 */
41 public class JStack {
42
43 public static void main(String[] args) throws Exception {
44 if (args.length == 0) {
45 usage(1); // no arguments
46 }
47
48 checkForUnsupportedOptions(args);
49
50 boolean locks = false;
51 boolean extended = false;
52
53 // Parse the options (arguments starting with "-" )
54 int optionCount = 0;
111 }
112
113 // Attach to pid and perform a thread dump
114 private static void runThreadDump(String pid, String args[]) throws Exception {
115 VirtualMachine vm = null;
116 try {
117 vm = VirtualMachine.attach(pid);
118 } catch (Exception x) {
119 String msg = x.getMessage();
120 if (msg != null) {
121 System.err.println(pid + ": " + msg);
122 } else {
123 x.printStackTrace();
124 }
125 System.exit(1);
126 }
127
128 // Cast to HotSpotVirtualMachine as this is implementation specific
129 // method.
130 InputStream in = ((HotSpotVirtualMachine)vm).remoteDataDump((Object[])args);
131
132 // read to EOF and just print output
133 byte b[] = new byte[256];
134 int n;
135 do {
136 n = in.read(b);
137 if (n > 0) {
138 String s = new String(b, 0, n, "UTF-8");
139 System.out.print(s);
140 }
141 } while (n > 0);
142 in.close();
143 vm.detach();
144 }
145
146 private static void checkForUnsupportedOptions(String[] args) {
147 // Check arguments for -F, -m, and non-numeric value
148 // and warn the user that SA is not supported anymore
149
150 int paramCount = 0;
151
152 for (String s : args) {
153 if (s.equals("-F")) {
154 SAOptionError("-F option used");
155 }
156
157 if (s.equals("-m")) {
158 SAOptionError("-m option used");
159 }
160
161 if (! s.startsWith("-")) {
162 paramCount += 1;
|
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.tools.jstack;
27
28 import java.io.InputStream;
29 import java.util.Collection;
30
31 import com.sun.tools.attach.VirtualMachine;
32 import sun.tools.attach.HotSpotVirtualMachine;
33 import sun.tools.common.ProcessArgumentMatcher;
34 import sun.tools.common.PrintStreamPrinter;
35
36 /*
37 * This class is the main class for the JStack utility. It parses its arguments
38 * and decides if the command should be executed by the SA JStack tool or by
39 * obtained the thread dump from a target process using the VM attach mechanism
40 */
41 public class JStack {
42
43 public static void main(String[] args) throws Exception {
44 if (args.length == 0) {
45 usage(1); // no arguments
46 }
47
48 checkForUnsupportedOptions(args);
49
50 boolean locks = false;
51 boolean extended = false;
52
53 // Parse the options (arguments starting with "-" )
54 int optionCount = 0;
111 }
112
113 // Attach to pid and perform a thread dump
114 private static void runThreadDump(String pid, String args[]) throws Exception {
115 VirtualMachine vm = null;
116 try {
117 vm = VirtualMachine.attach(pid);
118 } catch (Exception x) {
119 String msg = x.getMessage();
120 if (msg != null) {
121 System.err.println(pid + ": " + msg);
122 } else {
123 x.printStackTrace();
124 }
125 System.exit(1);
126 }
127
128 // Cast to HotSpotVirtualMachine as this is implementation specific
129 // method.
130 InputStream in = ((HotSpotVirtualMachine)vm).remoteDataDump((Object[])args);
131 // read to EOF and just print output
132 PrintStreamPrinter.drainUTF8(in, System.out);
133 vm.detach();
134 }
135
136 private static void checkForUnsupportedOptions(String[] args) {
137 // Check arguments for -F, -m, and non-numeric value
138 // and warn the user that SA is not supported anymore
139
140 int paramCount = 0;
141
142 for (String s : args) {
143 if (s.equals("-F")) {
144 SAOptionError("-F option used");
145 }
146
147 if (s.equals("-m")) {
148 SAOptionError("-m option used");
149 }
150
151 if (! s.startsWith("-")) {
152 paramCount += 1;
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