Wed, 10 Apr 2013 08:55:50 -0400
8010151: nsk/regression/b6653214 fails "assert(snapshot != NULL) failed: Worker should not be started"
Summary: Fixed a racing condition when shutting down NMT while worker thread is being started, also fixed a few mis-declared volatile pointers.
Reviewed-by: dholmes, dlong
1 /*
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
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 */
25 #include "precompiled.hpp"
26 #include "gc_implementation/shared/vmGCOperations.hpp"
27 #include "runtime/javaCalls.hpp"
28 #include "services/diagnosticArgument.hpp"
29 #include "services/diagnosticCommand.hpp"
30 #include "services/diagnosticFramework.hpp"
31 #include "services/heapDumper.hpp"
32 #include "services/management.hpp"
33 #include "utilities/macros.hpp"
35 void DCmdRegistrant::register_dcmds(){
36 // Registration of the diagnostic commands
37 // First boolean argument specifies if the command is enabled
38 // Second boolean argument specifies if the command is hidden
39 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(true, false));
40 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(true, false));
41 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(true, false));
42 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(true, false));
43 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(true, false));
44 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(true, false));
45 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(true, false));
46 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(true, false));
47 #if INCLUDE_SERVICES // Heap dumping/inspection supported
48 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(true, false));
49 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(true, false));
50 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassStatsDCmd>(true, false));
51 #endif // INCLUDE_SERVICES
52 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(true, false));
53 //Enhanced JMX Agent Support
54 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(true,false));
55 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(true,false));
56 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(true,false));
58 }
60 #ifndef HAVE_EXTRA_DCMD
61 void DCmdRegistrant::register_dcmds_ext(){
62 // Do nothing here
63 }
64 #endif
67 HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
68 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"),
69 _cmd("command name", "The name of the command for which we want help",
70 "STRING", false) {
71 _dcmdparser.add_dcmd_option(&_all);
72 _dcmdparser.add_dcmd_argument(&_cmd);
73 };
75 void HelpDCmd::execute(TRAPS) {
76 if (_all.value()) {
77 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list();
78 for (int i = 0; i < cmd_list->length(); i++) {
79 DCmdFactory* factory = DCmdFactory::factory(cmd_list->at(i),
80 strlen(cmd_list->at(i)));
81 if (!factory->is_hidden()) {
82 output()->print_cr("%s%s", factory->name(),
83 factory->is_enabled() ? "" : " [disabled]");
84 output()->print_cr("\t%s", factory->description());
85 output()->cr();
86 }
87 factory = factory->next();
88 }
89 } else if (_cmd.has_value()) {
90 DCmd* cmd = NULL;
91 DCmdFactory* factory = DCmdFactory::factory(_cmd.value(),
92 strlen(_cmd.value()));
93 if (factory != NULL) {
94 output()->print_cr("%s%s", factory->name(),
95 factory->is_enabled() ? "" : " [disabled]");
96 output()->print_cr(factory->description());
97 output()->print_cr("\nImpact: %s", factory->impact());
98 output()->cr();
99 cmd = factory->create_resource_instance(output());
100 if (cmd != NULL) {
101 DCmdMark mark(cmd);
102 cmd->print_help(factory->name());
103 }
104 } else {
105 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());
106 }
107 } else {
108 output()->print_cr("The following commands are available:");
109 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list();
110 for (int i = 0; i < cmd_list->length(); i++) {
111 DCmdFactory* factory = DCmdFactory::factory(cmd_list->at(i),
112 strlen(cmd_list->at(i)));
113 if (!factory->is_hidden()) {
114 output()->print_cr("%s%s", factory->name(),
115 factory->is_enabled() ? "" : " [disabled]");
116 }
117 factory = factory->_next;
118 }
119 output()->print_cr("\nFor more information about a specific command use 'help <command>'.");
120 }
121 }
123 int HelpDCmd::num_arguments() {
124 ResourceMark rm;
125 HelpDCmd* dcmd = new HelpDCmd(NULL, false);
126 if (dcmd != NULL) {
127 DCmdMark mark(dcmd);
128 return dcmd->_dcmdparser.num_arguments();
129 } else {
130 return 0;
131 }
132 }
134 void VersionDCmd::execute(TRAPS) {
135 output()->print_cr("%s version %s", Abstract_VM_Version::vm_name(),
136 Abstract_VM_Version::vm_release());
137 JDK_Version jdk_version = JDK_Version::current();
138 if (jdk_version.update_version() > 0) {
139 output()->print_cr("JDK %d.%d_%02d", jdk_version.major_version(),
140 jdk_version.minor_version(), jdk_version.update_version());
141 } else {
142 output()->print_cr("JDK %d.%d", jdk_version.major_version(),
143 jdk_version.minor_version());
144 }
145 }
147 PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) :
148 DCmdWithParser(output, heap),
149 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") {
150 _dcmdparser.add_dcmd_option(&_all);
151 }
153 void PrintVMFlagsDCmd::execute(TRAPS) {
154 if (_all.value()) {
155 CommandLineFlags::printFlags(output(), true);
156 } else {
157 CommandLineFlags::printSetFlags(output());
158 }
159 }
161 int PrintVMFlagsDCmd::num_arguments() {
162 ResourceMark rm;
163 PrintVMFlagsDCmd* dcmd = new PrintVMFlagsDCmd(NULL, false);
164 if (dcmd != NULL) {
165 DCmdMark mark(dcmd);
166 return dcmd->_dcmdparser.num_arguments();
167 } else {
168 return 0;
169 }
170 }
172 void PrintSystemPropertiesDCmd::execute(TRAPS) {
173 // load sun.misc.VMSupport
174 Symbol* klass = vmSymbols::sun_misc_VMSupport();
175 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK);
176 instanceKlassHandle ik (THREAD, k);
177 if (ik->should_be_initialized()) {
178 ik->initialize(THREAD);
179 }
180 if (HAS_PENDING_EXCEPTION) {
181 java_lang_Throwable::print(PENDING_EXCEPTION, output());
182 output()->cr();
183 CLEAR_PENDING_EXCEPTION;
184 return;
185 }
187 // invoke the serializePropertiesToByteArray method
188 JavaValue result(T_OBJECT);
189 JavaCallArguments args;
191 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature();
192 JavaCalls::call_static(&result,
193 ik,
194 vmSymbols::serializePropertiesToByteArray_name(),
195 signature,
196 &args,
197 THREAD);
198 if (HAS_PENDING_EXCEPTION) {
199 java_lang_Throwable::print(PENDING_EXCEPTION, output());
200 output()->cr();
201 CLEAR_PENDING_EXCEPTION;
202 return;
203 }
205 // The result should be a [B
206 oop res = (oop)result.get_jobject();
207 assert(res->is_typeArray(), "just checking");
208 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking");
210 // copy the bytes to the output stream
211 typeArrayOop ba = typeArrayOop(res);
212 jbyte* addr = typeArrayOop(res)->byte_at_addr(0);
213 output()->print_raw((const char*)addr, ba->length());
214 }
216 VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) :
217 DCmdWithParser(output, heap),
218 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") {
219 _dcmdparser.add_dcmd_option(&_date);
220 }
222 void VMUptimeDCmd::execute(TRAPS) {
223 if (_date.value()) {
224 output()->date_stamp(true, "", ": ");
225 }
226 output()->time_stamp().update_to(tty->time_stamp().ticks());
227 output()->stamp();
228 output()->print_cr(" s");
229 }
231 int VMUptimeDCmd::num_arguments() {
232 ResourceMark rm;
233 VMUptimeDCmd* dcmd = new VMUptimeDCmd(NULL, false);
234 if (dcmd != NULL) {
235 DCmdMark mark(dcmd);
236 return dcmd->_dcmdparser.num_arguments();
237 } else {
238 return 0;
239 }
240 }
242 void SystemGCDCmd::execute(TRAPS) {
243 Universe::heap()->collect(GCCause::_java_lang_system_gc);
244 }
246 void RunFinalizationDCmd::execute(TRAPS) {
247 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_System(),
248 true, CHECK);
249 instanceKlassHandle klass(THREAD, k);
250 JavaValue result(T_VOID);
251 JavaCalls::call_static(&result, klass,
252 vmSymbols::run_finalization_name(),
253 vmSymbols::void_method_signature(), CHECK);
254 }
256 #if INCLUDE_SERVICES // Heap dumping/inspection supported
257 HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) :
258 DCmdWithParser(output, heap),
259 _filename("filename","Name of the dump file", "STRING",true),
260 _all("-all", "Dump all objects, including unreachable objects",
261 "BOOLEAN", false, "false") {
262 _dcmdparser.add_dcmd_option(&_all);
263 _dcmdparser.add_dcmd_argument(&_filename);
264 }
266 void HeapDumpDCmd::execute(TRAPS) {
267 // Request a full GC before heap dump if _all is false
268 // This helps reduces the amount of unreachable objects in the dump
269 // and makes it easier to browse.
270 HeapDumper dumper(!_all.value() /* request GC if _all is false*/);
271 int res = dumper.dump(_filename.value());
272 if (res == 0) {
273 output()->print_cr("Heap dump file created");
274 } else {
275 // heap dump failed
276 ResourceMark rm;
277 char* error = dumper.error_as_C_string();
278 if (error == NULL) {
279 output()->print_cr("Dump failed - reason unknown");
280 } else {
281 output()->print_cr("%s", error);
282 }
283 }
284 }
286 int HeapDumpDCmd::num_arguments() {
287 ResourceMark rm;
288 HeapDumpDCmd* dcmd = new HeapDumpDCmd(NULL, false);
289 if (dcmd != NULL) {
290 DCmdMark mark(dcmd);
291 return dcmd->_dcmdparser.num_arguments();
292 } else {
293 return 0;
294 }
295 }
297 ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) :
298 DCmdWithParser(output, heap),
299 _all("-all", "Inspect all objects, including unreachable objects",
300 "BOOLEAN", false, "false") {
301 _dcmdparser.add_dcmd_option(&_all);
302 }
304 void ClassHistogramDCmd::execute(TRAPS) {
305 VM_GC_HeapInspection heapop(output(),
306 !_all.value() /* request full gc if false */,
307 true /* need_prologue */);
308 VMThread::execute(&heapop);
309 }
311 int ClassHistogramDCmd::num_arguments() {
312 ResourceMark rm;
313 ClassHistogramDCmd* dcmd = new ClassHistogramDCmd(NULL, false);
314 if (dcmd != NULL) {
315 DCmdMark mark(dcmd);
316 return dcmd->_dcmdparser.num_arguments();
317 } else {
318 return 0;
319 }
320 }
322 #define DEFAULT_COLUMNS "InstBytes,KlassBytes,CpAll,annotations,MethodCount,Bytecodes,MethodAll,ROAll,RWAll,Total"
323 ClassStatsDCmd::ClassStatsDCmd(outputStream* output, bool heap) :
324 DCmdWithParser(output, heap),
325 _csv("-csv", "Print in CSV (comma-separated values) format for spreadsheets",
326 "BOOLEAN", false, "false"),
327 _all("-all", "Show all columns",
328 "BOOLEAN", false, "false"),
329 _help("-help", "Show meaning of all the columns",
330 "BOOLEAN", false, "false"),
331 _columns("columns", "Comma-separated list of all the columns to show. "
332 "If not specified, the following columns are shown: " DEFAULT_COLUMNS,
333 "STRING", false) {
334 _dcmdparser.add_dcmd_option(&_all);
335 _dcmdparser.add_dcmd_option(&_csv);
336 _dcmdparser.add_dcmd_option(&_help);
337 _dcmdparser.add_dcmd_argument(&_columns);
338 }
340 void ClassStatsDCmd::execute(TRAPS) {
341 if (!UnlockDiagnosticVMOptions) {
342 output()->print_cr("GC.class_stats command requires -XX:+UnlockDiagnosticVMOptions");
343 return;
344 }
346 VM_GC_HeapInspection heapop(output(),
347 true, /* request_full_gc */
348 true /* need_prologue */);
349 heapop.set_csv_format(_csv.value());
350 heapop.set_print_help(_help.value());
351 heapop.set_print_class_stats(true);
352 if (_all.value()) {
353 if (_columns.has_value()) {
354 output()->print_cr("Cannot specify -all and individual columns at the same time");
355 return;
356 } else {
357 heapop.set_columns(NULL);
358 }
359 } else {
360 if (_columns.has_value()) {
361 heapop.set_columns(_columns.value());
362 } else {
363 heapop.set_columns(DEFAULT_COLUMNS);
364 }
365 }
366 VMThread::execute(&heapop);
367 }
369 int ClassStatsDCmd::num_arguments() {
370 ResourceMark rm;
371 ClassStatsDCmd* dcmd = new ClassStatsDCmd(NULL, false);
372 if (dcmd != NULL) {
373 DCmdMark mark(dcmd);
374 return dcmd->_dcmdparser.num_arguments();
375 } else {
376 return 0;
377 }
378 }
379 #endif // INCLUDE_SERVICES
381 ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) :
382 DCmdWithParser(output, heap),
383 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false") {
384 _dcmdparser.add_dcmd_option(&_locks);
385 }
387 void ThreadDumpDCmd::execute(TRAPS) {
388 // thread stacks
389 VM_PrintThreads op1(output(), _locks.value());
390 VMThread::execute(&op1);
392 // JNI global handles
393 VM_PrintJNI op2(output());
394 VMThread::execute(&op2);
396 // Deadlock detection
397 VM_FindDeadlocks op3(output());
398 VMThread::execute(&op3);
399 }
401 int ThreadDumpDCmd::num_arguments() {
402 ResourceMark rm;
403 ThreadDumpDCmd* dcmd = new ThreadDumpDCmd(NULL, false);
404 if (dcmd != NULL) {
405 DCmdMark mark(dcmd);
406 return dcmd->_dcmdparser.num_arguments();
407 } else {
408 return 0;
409 }
410 }
412 // Enhanced JMX Agent support
414 JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) :
416 DCmdWithParser(output, heap_allocated),
418 _config_file
419 ("config.file",
420 "set com.sun.management.config.file", "STRING", false),
422 _jmxremote_port
423 ("jmxremote.port",
424 "set com.sun.management.jmxremote.port", "STRING", false),
426 _jmxremote_rmi_port
427 ("jmxremote.rmi.port",
428 "set com.sun.management.jmxremote.rmi.port", "STRING", false),
430 _jmxremote_ssl
431 ("jmxremote.ssl",
432 "set com.sun.management.jmxremote.ssl", "STRING", false),
434 _jmxremote_registry_ssl
435 ("jmxremote.registry.ssl",
436 "set com.sun.management.jmxremote.registry.ssl", "STRING", false),
438 _jmxremote_authenticate
439 ("jmxremote.authenticate",
440 "set com.sun.management.jmxremote.authenticate", "STRING", false),
442 _jmxremote_password_file
443 ("jmxremote.password.file",
444 "set com.sun.management.jmxremote.password.file", "STRING", false),
446 _jmxremote_access_file
447 ("jmxremote.access.file",
448 "set com.sun.management.jmxremote.access.file", "STRING", false),
450 _jmxremote_login_config
451 ("jmxremote.login.config",
452 "set com.sun.management.jmxremote.login.config", "STRING", false),
454 _jmxremote_ssl_enabled_cipher_suites
455 ("jmxremote.ssl.enabled.cipher.suites",
456 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false),
458 _jmxremote_ssl_enabled_protocols
459 ("jmxremote.ssl.enabled.protocols",
460 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false),
462 _jmxremote_ssl_need_client_auth
463 ("jmxremote.ssl.need.client.auth",
464 "set com.sun.management.jmxremote.need.client.auth", "STRING", false),
466 _jmxremote_ssl_config_file
467 ("jmxremote.ssl.config.file",
468 "set com.sun.management.jmxremote.ssl_config_file", "STRING", false),
470 // JDP Protocol support
471 _jmxremote_autodiscovery
472 ("jmxremote.autodiscovery",
473 "set com.sun.management.jmxremote.autodiscovery", "STRING", false),
475 _jdp_port
476 ("jdp.port",
477 "set com.sun.management.jdp.port", "INT", false),
479 _jdp_address
480 ("jdp.address",
481 "set com.sun.management.jdp.address", "STRING", false),
483 _jdp_source_addr
484 ("jdp.source_addr",
485 "set com.sun.management.jdp.source_addr", "STRING", false),
487 _jdp_ttl
488 ("jdp.ttl",
489 "set com.sun.management.jdp.ttl", "INT", false),
491 _jdp_pause
492 ("jdp.pause",
493 "set com.sun.management.jdp.pause", "INT", false)
495 {
496 _dcmdparser.add_dcmd_option(&_config_file);
497 _dcmdparser.add_dcmd_option(&_jmxremote_port);
498 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port);
499 _dcmdparser.add_dcmd_option(&_jmxremote_ssl);
500 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl);
501 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate);
502 _dcmdparser.add_dcmd_option(&_jmxremote_password_file);
503 _dcmdparser.add_dcmd_option(&_jmxremote_access_file);
504 _dcmdparser.add_dcmd_option(&_jmxremote_login_config);
505 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites);
506 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols);
507 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth);
508 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file);
509 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery);
510 _dcmdparser.add_dcmd_option(&_jdp_port);
511 _dcmdparser.add_dcmd_option(&_jdp_address);
512 _dcmdparser.add_dcmd_option(&_jdp_source_addr);
513 _dcmdparser.add_dcmd_option(&_jdp_ttl);
514 _dcmdparser.add_dcmd_option(&_jdp_pause);
515 }
518 int JMXStartRemoteDCmd::num_arguments() {
519 ResourceMark rm;
520 JMXStartRemoteDCmd* dcmd = new JMXStartRemoteDCmd(NULL, false);
521 if (dcmd != NULL) {
522 DCmdMark mark(dcmd);
523 return dcmd->_dcmdparser.num_arguments();
524 } else {
525 return 0;
526 }
527 }
529 void JMXStartRemoteDCmd::execute(TRAPS) {
530 ResourceMark rm(THREAD);
531 HandleMark hm(THREAD);
533 // Load and initialize the sun.management.Agent class
534 // invoke startRemoteManagementAgent(string) method to start
535 // the remote management server.
536 // throw java.lang.NoSuchMethodError if the method doesn't exist
538 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
539 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
540 instanceKlassHandle ik (THREAD, k);
542 JavaValue result(T_VOID);
544 // Pass all command line arguments to java as key=value,...
545 // All checks are done on java side
547 int len = 0;
548 stringStream options;
549 char comma[2] = {0,0};
551 // Leave default values on Agent.class side and pass only
552 // agruments explicitly set by user. All arguments passed
553 // to jcmd override properties with the same name set by
554 // command line with -D or by managmenent.properties
555 // file.
556 #define PUT_OPTION(a) \
557 if ( (a).is_set() ){ \
558 options.print(\
559 ( *((a).type()) == 'I' ) ? "%scom.sun.management.%s=%d" : "%scom.sun.management.%s=%s",\
560 comma, (a).name(), (a).value()); \
561 comma[0] = ','; \
562 }
564 PUT_OPTION(_config_file);
565 PUT_OPTION(_jmxremote_port);
566 PUT_OPTION(_jmxremote_rmi_port);
567 PUT_OPTION(_jmxremote_ssl);
568 PUT_OPTION(_jmxremote_registry_ssl);
569 PUT_OPTION(_jmxremote_authenticate);
570 PUT_OPTION(_jmxremote_password_file);
571 PUT_OPTION(_jmxremote_access_file);
572 PUT_OPTION(_jmxremote_login_config);
573 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites);
574 PUT_OPTION(_jmxremote_ssl_enabled_protocols);
575 PUT_OPTION(_jmxremote_ssl_need_client_auth);
576 PUT_OPTION(_jmxremote_ssl_config_file);
577 PUT_OPTION(_jmxremote_autodiscovery);
578 PUT_OPTION(_jdp_port);
579 PUT_OPTION(_jdp_address);
580 PUT_OPTION(_jdp_source_addr);
581 PUT_OPTION(_jdp_ttl);
582 PUT_OPTION(_jdp_pause);
584 #undef PUT_OPTION
586 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK);
587 JavaCalls::call_static(&result, ik, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK);
588 }
590 JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) :
591 DCmd(output, heap_allocated)
592 {
593 // do nothing
594 }
596 void JMXStartLocalDCmd::execute(TRAPS) {
597 ResourceMark rm(THREAD);
598 HandleMark hm(THREAD);
600 // Load and initialize the sun.management.Agent class
601 // invoke startLocalManagementAgent(void) method to start
602 // the local management server
603 // throw java.lang.NoSuchMethodError if method doesn't exist
605 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
606 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
607 instanceKlassHandle ik (THREAD, k);
609 JavaValue result(T_VOID);
610 JavaCalls::call_static(&result, ik, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK);
611 }
614 void JMXStopRemoteDCmd::execute(TRAPS) {
615 ResourceMark rm(THREAD);
616 HandleMark hm(THREAD);
618 // Load and initialize the sun.management.Agent class
619 // invoke stopRemoteManagementAgent method to stop the
620 // management server
621 // throw java.lang.NoSuchMethodError if method doesn't exist
623 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
624 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), loader, Handle(), true, CHECK);
625 instanceKlassHandle ik (THREAD, k);
627 JavaValue result(T_VOID);
628 JavaCalls::call_static(&result, ik, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK);
629 }