author | dholmes |
Sat, 23 Jun 2018 01:32:41 -0400 | |
changeset 50735 | 2f2af62dfac7 |
parent 47216 | 71c04702a3d5 |
child 54270 | 176e8aec3097 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
50735
2f2af62dfac7
8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents:
47216
diff
changeset
|
2 |
* Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
|
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* This code is free software; you can redistribute it and/or modify it |
|
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* under the terms of the GNU General Public License version 2 only, as |
|
5506 | 7 |
* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* by Oracle in the LICENSE file that accompanied this code. |
2 | 10 |
* |
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
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 |
|
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* accompanied this code). |
|
16 |
* |
|
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* 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. |
|
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* |
|
5506 | 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 |
|
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* questions. |
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2 | 24 |
*/ |
25 |
||
26 |
package com.sun.tools.jdi; |
|
27 |
||
45714 | 28 |
import java.lang.ref.Reference; |
29 |
import java.lang.ref.ReferenceQueue; |
|
30 |
import java.lang.ref.SoftReference; |
|
31 |
import java.text.MessageFormat; |
|
32 |
import java.util.ArrayList; |
|
33 |
import java.util.Arrays; |
|
34 |
import java.util.Collections; |
|
35 |
import java.util.HashMap; |
|
36 |
import java.util.Iterator; |
|
37 |
import java.util.List; |
|
38 |
import java.util.Map; |
|
39 |
import java.util.TreeSet; |
|
40 |
||
41 |
import com.sun.jdi.BooleanType; |
|
42 |
import com.sun.jdi.BooleanValue; |
|
43 |
import com.sun.jdi.ByteType; |
|
44 |
import com.sun.jdi.ByteValue; |
|
45 |
import com.sun.jdi.CharType; |
|
46 |
import com.sun.jdi.CharValue; |
|
47 |
import com.sun.jdi.ClassLoaderReference; |
|
48 |
import com.sun.jdi.ClassNotLoadedException; |
|
49 |
import com.sun.jdi.DoubleType; |
|
50 |
import com.sun.jdi.DoubleValue; |
|
51 |
import com.sun.jdi.FloatType; |
|
52 |
import com.sun.jdi.FloatValue; |
|
53 |
import com.sun.jdi.IntegerType; |
|
54 |
import com.sun.jdi.IntegerValue; |
|
55 |
import com.sun.jdi.InternalException; |
|
56 |
import com.sun.jdi.LongType; |
|
57 |
import com.sun.jdi.LongValue; |
|
36511 | 58 |
import com.sun.jdi.ModuleReference; |
45714 | 59 |
import com.sun.jdi.PathSearchingVirtualMachine; |
60 |
import com.sun.jdi.PrimitiveType; |
|
61 |
import com.sun.jdi.ReferenceType; |
|
62 |
import com.sun.jdi.ShortType; |
|
63 |
import com.sun.jdi.ShortValue; |
|
64 |
import com.sun.jdi.StringReference; |
|
65 |
import com.sun.jdi.ThreadGroupReference; |
|
66 |
import com.sun.jdi.ThreadReference; |
|
67 |
import com.sun.jdi.Type; |
|
68 |
import com.sun.jdi.VMDisconnectedException; |
|
69 |
import com.sun.jdi.VirtualMachine; |
|
70 |
import com.sun.jdi.VirtualMachineManager; |
|
71 |
import com.sun.jdi.VoidType; |
|
72 |
import com.sun.jdi.VoidValue; |
|
2 | 73 |
import com.sun.jdi.connect.spi.Connection; |
74 |
import com.sun.jdi.event.EventQueue; |
|
45714 | 75 |
import com.sun.jdi.request.BreakpointRequest; |
76 |
import com.sun.jdi.request.EventRequest; |
|
77 |
import com.sun.jdi.request.EventRequestManager; |
|
2 | 78 |
|
79 |
class VirtualMachineImpl extends MirrorImpl |
|
80 |
implements PathSearchingVirtualMachine, ThreadListener { |
|
81 |
// VM Level exported variables, these |
|
82 |
// are unique to a given vm |
|
83 |
public final int sizeofFieldRef; |
|
84 |
public final int sizeofMethodRef; |
|
85 |
public final int sizeofObjectRef; |
|
86 |
public final int sizeofClassRef; |
|
87 |
public final int sizeofFrameRef; |
|
36511 | 88 |
public final int sizeofModuleRef; |
2 | 89 |
|
90 |
final int sequenceNumber; |
|
91 |
||
92 |
private final TargetVM target; |
|
93 |
private final EventQueueImpl eventQueue; |
|
94 |
private final EventRequestManagerImpl internalEventRequestManager; |
|
95 |
private final EventRequestManagerImpl eventRequestManager; |
|
96 |
final VirtualMachineManagerImpl vmManager; |
|
97 |
private final ThreadGroup threadGroupForJDI; |
|
98 |
||
99 |
// Allow direct access to this field so that that tracing code slows down |
|
100 |
// JDI as little as possible when not enabled. |
|
101 |
int traceFlags = TRACE_NONE; |
|
102 |
||
103 |
static int TRACE_RAW_SENDS = 0x01000000; |
|
104 |
static int TRACE_RAW_RECEIVES = 0x02000000; |
|
105 |
||
106 |
boolean traceReceives = false; // pre-compute because of frequency |
|
107 |
||
108 |
// ReferenceType access - updated with class prepare and unload events |
|
109 |
// Protected by "synchronized(this)". "retrievedAllTypes" may be |
|
110 |
// tested unsynchronized (since once true, it stays true), but must |
|
111 |
// be set synchronously |
|
112 |
private Map<Long, ReferenceType> typesByID; |
|
113 |
private TreeSet<ReferenceType> typesBySignature; |
|
114 |
private boolean retrievedAllTypes = false; |
|
115 |
||
36511 | 116 |
private Map<Long, ModuleReference> modulesByID; |
117 |
||
2 | 118 |
// For other languages support |
119 |
private String defaultStratum = null; |
|
120 |
||
121 |
// ObjectReference cache |
|
122 |
// "objectsByID" protected by "synchronized(this)". |
|
45714 | 123 |
private final Map<Long, SoftObjectReference> objectsByID = new HashMap<>(); |
124 |
private final ReferenceQueue<ObjectReferenceImpl> referenceQueue = new ReferenceQueue<>(); |
|
2 | 125 |
static private final int DISPOSE_THRESHOLD = 50; |
126 |
private final List<SoftObjectReference> batchedDisposeRequests = |
|
45714 | 127 |
Collections.synchronizedList(new ArrayList<>(DISPOSE_THRESHOLD + 10)); |
2 | 128 |
|
129 |
// These are cached once for the life of the VM |
|
130 |
private JDWP.VirtualMachine.Version versionInfo; |
|
131 |
private JDWP.VirtualMachine.ClassPaths pathInfo; |
|
132 |
private JDWP.VirtualMachine.Capabilities capabilities = null; |
|
133 |
private JDWP.VirtualMachine.CapabilitiesNew capabilitiesNew = null; |
|
134 |
||
135 |
// Per-vm singletons for primitive types and for void. |
|
136 |
// singleton-ness protected by "synchronized(this)". |
|
137 |
private BooleanType theBooleanType; |
|
138 |
private ByteType theByteType; |
|
139 |
private CharType theCharType; |
|
140 |
private ShortType theShortType; |
|
141 |
private IntegerType theIntegerType; |
|
142 |
private LongType theLongType; |
|
143 |
private FloatType theFloatType; |
|
144 |
private DoubleType theDoubleType; |
|
145 |
||
146 |
private VoidType theVoidType; |
|
147 |
||
148 |
private VoidValue voidVal; |
|
149 |
||
150 |
// Launched debuggee process |
|
151 |
private Process process; |
|
152 |
||
153 |
// coordinates state changes and corresponding listener notifications |
|
154 |
private VMState state = new VMState(this); |
|
155 |
||
156 |
private Object initMonitor = new Object(); |
|
157 |
private boolean initComplete = false; |
|
158 |
private boolean shutdown = false; |
|
159 |
||
160 |
private void notifyInitCompletion() { |
|
161 |
synchronized(initMonitor) { |
|
162 |
initComplete = true; |
|
163 |
initMonitor.notifyAll(); |
|
164 |
} |
|
165 |
} |
|
166 |
||
167 |
void waitInitCompletion() { |
|
168 |
synchronized(initMonitor) { |
|
169 |
while (!initComplete) { |
|
170 |
try { |
|
171 |
initMonitor.wait(); |
|
172 |
} catch (InterruptedException e) { |
|
173 |
// ignore |
|
174 |
} |
|
175 |
} |
|
176 |
} |
|
177 |
} |
|
178 |
||
179 |
VMState state() { |
|
180 |
return state; |
|
181 |
} |
|
182 |
||
183 |
/* |
|
184 |
* ThreadListener implementation |
|
185 |
*/ |
|
186 |
public boolean threadResumable(ThreadAction action) { |
|
187 |
/* |
|
188 |
* If any thread is resumed, the VM is considered not suspended. |
|
836
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diff
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|
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* Just one thread is being resumed so pass it to thaw. |
2 | 190 |
*/ |
836
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6700889: Thread resume invalidates all stack frames, even from other threads
jjh
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diff
changeset
|
191 |
state.thaw(action.thread()); |
2 | 192 |
return true; |
193 |
} |
|
194 |
||
195 |
VirtualMachineImpl(VirtualMachineManager manager, |
|
196 |
Connection connection, Process process, |
|
197 |
int sequenceNumber) { |
|
198 |
super(null); // Can't use super(this) |
|
199 |
vm = this; |
|
200 |
||
201 |
this.vmManager = (VirtualMachineManagerImpl)manager; |
|
202 |
this.process = process; |
|
203 |
this.sequenceNumber = sequenceNumber; |
|
204 |
||
205 |
/* Create ThreadGroup to be used by all threads servicing |
|
206 |
* this VM. |
|
207 |
*/ |
|
208 |
threadGroupForJDI = new ThreadGroup(vmManager.mainGroupForJDI(), |
|
209 |
"JDI [" + |
|
210 |
this.hashCode() + "]"); |
|
211 |
||
212 |
/* |
|
213 |
* Set up a thread to communicate with the target VM over |
|
214 |
* the specified transport. |
|
215 |
*/ |
|
216 |
target = new TargetVM(this, connection); |
|
217 |
||
218 |
/* |
|
219 |
* Set up a thread to handle events processed internally |
|
220 |
* the JDI implementation. |
|
221 |
*/ |
|
222 |
EventQueueImpl internalEventQueue = new EventQueueImpl(this, target); |
|
223 |
new InternalEventHandler(this, internalEventQueue); |
|
224 |
/* |
|
225 |
* Initialize client access to event setting and handling |
|
226 |
*/ |
|
227 |
eventQueue = new EventQueueImpl(this, target); |
|
228 |
eventRequestManager = new EventRequestManagerImpl(this); |
|
229 |
||
230 |
target.start(); |
|
231 |
||
232 |
/* |
|
233 |
* Many ids are variably sized, depending on target VM. |
|
234 |
* Find out the sizes right away. |
|
235 |
*/ |
|
236 |
JDWP.VirtualMachine.IDSizes idSizes; |
|
237 |
try { |
|
238 |
idSizes = JDWP.VirtualMachine.IDSizes.process(vm); |
|
239 |
} catch (JDWPException exc) { |
|
240 |
throw exc.toJDIException(); |
|
241 |
} |
|
242 |
sizeofFieldRef = idSizes.fieldIDSize; |
|
243 |
sizeofMethodRef = idSizes.methodIDSize; |
|
244 |
sizeofObjectRef = idSizes.objectIDSize; |
|
245 |
sizeofClassRef = idSizes.referenceTypeIDSize; |
|
246 |
sizeofFrameRef = idSizes.frameIDSize; |
|
36511 | 247 |
sizeofModuleRef = idSizes.objectIDSize; |
2 | 248 |
|
249 |
/** |
|
250 |
* Set up requests needed by internal event handler. |
|
251 |
* Make sure they are distinguished by creating them with |
|
252 |
* an internal event request manager. |
|
253 |
* |
|
254 |
* Warning: create events only with SUSPEND_NONE policy. |
|
255 |
* In the current implementation other policies will not |
|
256 |
* be handled correctly when the event comes in. (notfiySuspend() |
|
257 |
* will not be properly called, and if the event is combined |
|
258 |
* with external events in the same set, suspend policy is not |
|
259 |
* correctly determined for the internal vs. external event sets) |
|
260 |
*/ |
|
261 |
internalEventRequestManager = new EventRequestManagerImpl(this); |
|
262 |
EventRequest er = internalEventRequestManager.createClassPrepareRequest(); |
|
263 |
er.setSuspendPolicy(EventRequest.SUSPEND_NONE); |
|
264 |
er.enable(); |
|
265 |
er = internalEventRequestManager.createClassUnloadRequest(); |
|
266 |
er.setSuspendPolicy(EventRequest.SUSPEND_NONE); |
|
267 |
er.enable(); |
|
268 |
||
269 |
/* |
|
270 |
* Tell other threads, notably TargetVM, that initialization |
|
271 |
* is complete. |
|
272 |
*/ |
|
273 |
notifyInitCompletion(); |
|
274 |
} |
|
275 |
||
276 |
EventRequestManagerImpl getInternalEventRequestManager() { |
|
277 |
return internalEventRequestManager; |
|
278 |
} |
|
279 |
||
280 |
void validateVM() { |
|
281 |
/* |
|
282 |
* We no longer need to do this. The spec now says |
|
283 |
* that a VMDisconnected _may_ be thrown in these |
|
284 |
* cases, not that it _will_ be thrown. |
|
285 |
* So, to simplify things we will just let the |
|
286 |
* caller's of this method proceed with their business. |
|
287 |
* If the debuggee is disconnected, either because it |
|
288 |
* crashed or finished or something, or because the |
|
289 |
* debugger called exit() or dispose(), then if |
|
290 |
* we end up trying to communicate with the debuggee, |
|
291 |
* code in TargetVM will throw a VMDisconnectedException. |
|
292 |
* This means that if we can satisfy a request without |
|
293 |
* talking to the debuggee, (eg, with cached data) then |
|
294 |
* VMDisconnectedException will _not_ be thrown. |
|
295 |
* if (shutdown) { |
|
296 |
* throw new VMDisconnectedException(); |
|
297 |
* } |
|
298 |
*/ |
|
299 |
} |
|
300 |
||
301 |
public boolean equals(Object obj) { |
|
302 |
return this == obj; |
|
303 |
} |
|
304 |
||
305 |
public int hashCode() { |
|
306 |
return System.identityHashCode(this); |
|
307 |
} |
|
308 |
||
36511 | 309 |
public List<ModuleReference> allModules() { |
310 |
validateVM(); |
|
311 |
List<ModuleReference> modules = retrieveAllModules(); |
|
312 |
return Collections.unmodifiableList(modules); |
|
313 |
} |
|
314 |
||
2 | 315 |
public List<ReferenceType> classesByName(String className) { |
316 |
validateVM(); |
|
317 |
String signature = JNITypeParser.typeNameToSignature(className); |
|
318 |
List<ReferenceType> list; |
|
319 |
if (retrievedAllTypes) { |
|
320 |
list = findReferenceTypes(signature); |
|
321 |
} else { |
|
322 |
list = retrieveClassesBySignature(signature); |
|
323 |
} |
|
324 |
return Collections.unmodifiableList(list); |
|
325 |
} |
|
326 |
||
327 |
public List<ReferenceType> allClasses() { |
|
328 |
validateVM(); |
|
329 |
||
330 |
if (!retrievedAllTypes) { |
|
331 |
retrieveAllClasses(); |
|
332 |
} |
|
333 |
ArrayList<ReferenceType> a; |
|
334 |
synchronized (this) { |
|
45714 | 335 |
a = new ArrayList<>(typesBySignature); |
2 | 336 |
} |
337 |
return Collections.unmodifiableList(a); |
|
338 |
} |
|
339 |
||
340 |
public void |
|
45714 | 341 |
redefineClasses(Map<? extends ReferenceType, byte[]> classToBytes) |
2 | 342 |
{ |
343 |
int cnt = classToBytes.size(); |
|
344 |
JDWP.VirtualMachine.RedefineClasses.ClassDef[] defs = |
|
345 |
new JDWP.VirtualMachine.RedefineClasses.ClassDef[cnt]; |
|
346 |
validateVM(); |
|
347 |
if (!canRedefineClasses()) { |
|
348 |
throw new UnsupportedOperationException(); |
|
349 |
} |
|
11277 | 350 |
Iterator<?> it = classToBytes.entrySet().iterator(); |
2 | 351 |
for (int i = 0; it.hasNext(); i++) { |
45714 | 352 |
@SuppressWarnings("rawtypes") |
353 |
Map.Entry<?, ?> entry = (Map.Entry)it.next(); |
|
2 | 354 |
ReferenceTypeImpl refType = (ReferenceTypeImpl)entry.getKey(); |
355 |
validateMirror(refType); |
|
356 |
defs[i] = new JDWP.VirtualMachine.RedefineClasses |
|
357 |
.ClassDef(refType, (byte[])entry.getValue()); |
|
358 |
} |
|
359 |
||
360 |
// flush caches and disable caching until the next suspend |
|
361 |
vm.state().thaw(); |
|
362 |
||
363 |
try { |
|
364 |
JDWP.VirtualMachine.RedefineClasses. |
|
365 |
process(vm, defs); |
|
366 |
} catch (JDWPException exc) { |
|
367 |
switch (exc.errorCode()) { |
|
368 |
case JDWP.Error.INVALID_CLASS_FORMAT : |
|
369 |
throw new ClassFormatError( |
|
45714 | 370 |
"class not in class file format"); |
2 | 371 |
case JDWP.Error.CIRCULAR_CLASS_DEFINITION : |
372 |
throw new ClassCircularityError( |
|
45714 | 373 |
"circularity has been detected while initializing a class"); |
2 | 374 |
case JDWP.Error.FAILS_VERIFICATION : |
375 |
throw new VerifyError( |
|
45714 | 376 |
"verifier detected internal inconsistency or security problem"); |
2 | 377 |
case JDWP.Error.UNSUPPORTED_VERSION : |
378 |
throw new UnsupportedClassVersionError( |
|
379 |
"version numbers of class are not supported"); |
|
380 |
case JDWP.Error.ADD_METHOD_NOT_IMPLEMENTED: |
|
381 |
throw new UnsupportedOperationException( |
|
45714 | 382 |
"add method not implemented"); |
2 | 383 |
case JDWP.Error.SCHEMA_CHANGE_NOT_IMPLEMENTED : |
384 |
throw new UnsupportedOperationException( |
|
45714 | 385 |
"schema change not implemented"); |
2 | 386 |
case JDWP.Error.HIERARCHY_CHANGE_NOT_IMPLEMENTED: |
387 |
throw new UnsupportedOperationException( |
|
45714 | 388 |
"hierarchy change not implemented"); |
2 | 389 |
case JDWP.Error.DELETE_METHOD_NOT_IMPLEMENTED : |
390 |
throw new UnsupportedOperationException( |
|
45714 | 391 |
"delete method not implemented"); |
2 | 392 |
case JDWP.Error.CLASS_MODIFIERS_CHANGE_NOT_IMPLEMENTED: |
393 |
throw new UnsupportedOperationException( |
|
45714 | 394 |
"changes to class modifiers not implemented"); |
2 | 395 |
case JDWP.Error.METHOD_MODIFIERS_CHANGE_NOT_IMPLEMENTED : |
396 |
throw new UnsupportedOperationException( |
|
45714 | 397 |
"changes to method modifiers not implemented"); |
50735
2f2af62dfac7
8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents:
47216
diff
changeset
|
398 |
case JDWP.Error.CLASS_ATTRIBUTE_CHANGE_NOT_IMPLEMENTED : |
2f2af62dfac7
8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents:
47216
diff
changeset
|
399 |
throw new UnsupportedOperationException( |
2f2af62dfac7
8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents:
47216
diff
changeset
|
400 |
"changes to class attribute not implemented"); |
2 | 401 |
case JDWP.Error.NAMES_DONT_MATCH : |
402 |
throw new NoClassDefFoundError( |
|
45714 | 403 |
"class names do not match"); |
2 | 404 |
default: |
405 |
throw exc.toJDIException(); |
|
406 |
} |
|
407 |
} |
|
408 |
||
409 |
// Delete any record of the breakpoints |
|
45714 | 410 |
List<BreakpointRequest> toDelete = new ArrayList<>(); |
2 | 411 |
EventRequestManager erm = eventRequestManager(); |
412 |
it = erm.breakpointRequests().iterator(); |
|
413 |
while (it.hasNext()) { |
|
414 |
BreakpointRequest req = (BreakpointRequest)it.next(); |
|
415 |
if (classToBytes.containsKey(req.location().declaringType())) { |
|
416 |
toDelete.add(req); |
|
417 |
} |
|
418 |
} |
|
419 |
erm.deleteEventRequests(toDelete); |
|
420 |
||
421 |
// Invalidate any information cached for the classes just redefined. |
|
422 |
it = classToBytes.keySet().iterator(); |
|
423 |
while (it.hasNext()) { |
|
424 |
ReferenceTypeImpl rti = (ReferenceTypeImpl)it.next(); |
|
425 |
rti.noticeRedefineClass(); |
|
426 |
} |
|
427 |
} |
|
428 |
||
429 |
public List<ThreadReference> allThreads() { |
|
430 |
validateVM(); |
|
431 |
return state.allThreads(); |
|
432 |
} |
|
433 |
||
434 |
public List<ThreadGroupReference> topLevelThreadGroups() { |
|
435 |
validateVM(); |
|
436 |
return state.topLevelThreadGroups(); |
|
437 |
} |
|
438 |
||
439 |
/* |
|
440 |
* Sends a command to the back end which is defined to do an |
|
441 |
* implicit vm-wide resume. The VM can no longer be considered |
|
442 |
* suspended, so certain cached data must be invalidated. |
|
443 |
*/ |
|
444 |
PacketStream sendResumingCommand(CommandSender sender) { |
|
445 |
return state.thawCommand(sender); |
|
446 |
} |
|
447 |
||
448 |
/* |
|
449 |
* The VM has been suspended. Additional caching can be done |
|
450 |
* as long as there are no pending resumes. |
|
451 |
*/ |
|
452 |
void notifySuspend() { |
|
453 |
state.freeze(); |
|
454 |
} |
|
455 |
||
456 |
public void suspend() { |
|
457 |
validateVM(); |
|
458 |
try { |
|
459 |
JDWP.VirtualMachine.Suspend.process(vm); |
|
460 |
} catch (JDWPException exc) { |
|
461 |
throw exc.toJDIException(); |
|
462 |
} |
|
463 |
notifySuspend(); |
|
464 |
} |
|
465 |
||
466 |
public void resume() { |
|
467 |
validateVM(); |
|
468 |
CommandSender sender = |
|
469 |
new CommandSender() { |
|
470 |
public PacketStream send() { |
|
471 |
return JDWP.VirtualMachine.Resume.enqueueCommand(vm); |
|
472 |
} |
|
473 |
}; |
|
474 |
try { |
|
475 |
PacketStream stream = state.thawCommand(sender); |
|
476 |
JDWP.VirtualMachine.Resume.waitForReply(vm, stream); |
|
477 |
} catch (VMDisconnectedException exc) { |
|
478 |
/* |
|
479 |
* If the debugger makes a VMDeathRequest with SUSPEND_ALL, |
|
480 |
* then when it does an EventSet.resume after getting the |
|
481 |
* VMDeathEvent, the normal flow of events is that the |
|
482 |
* BE shuts down, but the waitForReply comes back ok. In this |
|
483 |
* case, the run loop in TargetVM that is waiting for a packet |
|
484 |
* gets an EOF because the socket closes. It generates a |
|
485 |
* VMDisconnectedEvent and everyone is happy. |
|
486 |
* However, sometimes, the BE gets shutdown before this |
|
487 |
* waitForReply completes. In this case, TargetVM.waitForReply |
|
488 |
* gets awakened with no reply and so gens a VMDisconnectedException |
|
489 |
* which is not what we want. It might be possible to fix this |
|
490 |
* in the BE, but it is ok to just ignore the VMDisconnectedException |
|
491 |
* here. This will allow the VMDisconnectedEvent to be generated |
|
492 |
* correctly. And, if the debugger should happen to make another |
|
493 |
* request, it will get a VMDisconnectedException at that time. |
|
494 |
*/ |
|
495 |
} catch (JDWPException exc) { |
|
496 |
switch (exc.errorCode()) { |
|
497 |
case JDWP.Error.VM_DEAD: |
|
498 |
return; |
|
499 |
default: |
|
500 |
throw exc.toJDIException(); |
|
501 |
} |
|
502 |
} |
|
503 |
} |
|
504 |
||
505 |
public EventQueue eventQueue() { |
|
506 |
/* |
|
507 |
* No VM validation here. We allow access to the event queue |
|
508 |
* after disconnection, so that there is access to the terminating |
|
509 |
* events. |
|
510 |
*/ |
|
511 |
return eventQueue; |
|
512 |
} |
|
513 |
||
514 |
public EventRequestManager eventRequestManager() { |
|
515 |
validateVM(); |
|
516 |
return eventRequestManager; |
|
517 |
} |
|
518 |
||
519 |
EventRequestManagerImpl eventRequestManagerImpl() { |
|
520 |
return eventRequestManager; |
|
521 |
} |
|
522 |
||
523 |
public BooleanValue mirrorOf(boolean value) { |
|
524 |
validateVM(); |
|
525 |
return new BooleanValueImpl(this,value); |
|
526 |
} |
|
527 |
||
528 |
public ByteValue mirrorOf(byte value) { |
|
529 |
validateVM(); |
|
530 |
return new ByteValueImpl(this,value); |
|
531 |
} |
|
532 |
||
533 |
public CharValue mirrorOf(char value) { |
|
534 |
validateVM(); |
|
535 |
return new CharValueImpl(this,value); |
|
536 |
} |
|
537 |
||
538 |
public ShortValue mirrorOf(short value) { |
|
539 |
validateVM(); |
|
540 |
return new ShortValueImpl(this,value); |
|
541 |
} |
|
542 |
||
543 |
public IntegerValue mirrorOf(int value) { |
|
544 |
validateVM(); |
|
545 |
return new IntegerValueImpl(this,value); |
|
546 |
} |
|
547 |
||
548 |
public LongValue mirrorOf(long value) { |
|
549 |
validateVM(); |
|
550 |
return new LongValueImpl(this,value); |
|
551 |
} |
|
552 |
||
553 |
public FloatValue mirrorOf(float value) { |
|
554 |
validateVM(); |
|
555 |
return new FloatValueImpl(this,value); |
|
556 |
} |
|
557 |
||
558 |
public DoubleValue mirrorOf(double value) { |
|
559 |
validateVM(); |
|
560 |
return new DoubleValueImpl(this,value); |
|
561 |
} |
|
562 |
||
563 |
public StringReference mirrorOf(String value) { |
|
564 |
validateVM(); |
|
565 |
try { |
|
45714 | 566 |
return JDWP.VirtualMachine.CreateString. |
567 |
process(vm, value).stringObject; |
|
2 | 568 |
} catch (JDWPException exc) { |
569 |
throw exc.toJDIException(); |
|
570 |
} |
|
571 |
} |
|
572 |
||
573 |
public VoidValue mirrorOfVoid() { |
|
574 |
if (voidVal == null) { |
|
575 |
voidVal = new VoidValueImpl(this); |
|
576 |
} |
|
577 |
return voidVal; |
|
578 |
} |
|
579 |
||
580 |
public long[] instanceCounts(List<? extends ReferenceType> classes) { |
|
581 |
if (!canGetInstanceInfo()) { |
|
582 |
throw new UnsupportedOperationException( |
|
583 |
"target does not support getting instances"); |
|
584 |
} |
|
585 |
long[] retValue ; |
|
586 |
ReferenceTypeImpl[] rtArray = new ReferenceTypeImpl[classes.size()]; |
|
587 |
int ii = 0; |
|
588 |
for (ReferenceType rti: classes) { |
|
589 |
validateMirror(rti); |
|
590 |
rtArray[ii++] = (ReferenceTypeImpl)rti; |
|
591 |
} |
|
592 |
try { |
|
593 |
retValue = JDWP.VirtualMachine.InstanceCounts. |
|
594 |
process(vm, rtArray).counts; |
|
595 |
} catch (JDWPException exc) { |
|
596 |
throw exc.toJDIException(); |
|
597 |
} |
|
598 |
||
599 |
return retValue; |
|
600 |
} |
|
601 |
||
602 |
public void dispose() { |
|
603 |
validateVM(); |
|
604 |
shutdown = true; |
|
605 |
try { |
|
606 |
JDWP.VirtualMachine.Dispose.process(vm); |
|
607 |
} catch (JDWPException exc) { |
|
608 |
throw exc.toJDIException(); |
|
609 |
} |
|
610 |
target.stopListening(); |
|
611 |
} |
|
612 |
||
613 |
public void exit(int exitCode) { |
|
614 |
validateVM(); |
|
615 |
shutdown = true; |
|
616 |
try { |
|
617 |
JDWP.VirtualMachine.Exit.process(vm, exitCode); |
|
618 |
} catch (JDWPException exc) { |
|
619 |
throw exc.toJDIException(); |
|
620 |
} |
|
621 |
target.stopListening(); |
|
622 |
} |
|
623 |
||
624 |
public Process process() { |
|
625 |
validateVM(); |
|
626 |
return process; |
|
627 |
} |
|
628 |
||
629 |
private JDWP.VirtualMachine.Version versionInfo() { |
|
630 |
try { |
|
631 |
if (versionInfo == null) { |
|
632 |
// Need not be synchronized since it is static information |
|
633 |
versionInfo = JDWP.VirtualMachine.Version.process(vm); |
|
634 |
} |
|
635 |
return versionInfo; |
|
636 |
} catch (JDWPException exc) { |
|
637 |
throw exc.toJDIException(); |
|
638 |
} |
|
36511 | 639 |
} |
640 |
||
2 | 641 |
public String description() { |
642 |
validateVM(); |
|
643 |
||
644 |
return MessageFormat.format(vmManager.getString("version_format"), |
|
645 |
"" + vmManager.majorInterfaceVersion(), |
|
646 |
"" + vmManager.minorInterfaceVersion(), |
|
647 |
versionInfo().description); |
|
648 |
} |
|
649 |
||
650 |
public String version() { |
|
651 |
validateVM(); |
|
652 |
return versionInfo().vmVersion; |
|
653 |
} |
|
654 |
||
655 |
public String name() { |
|
656 |
validateVM(); |
|
657 |
return versionInfo().vmName; |
|
658 |
} |
|
659 |
||
660 |
public boolean canWatchFieldModification() { |
|
661 |
validateVM(); |
|
662 |
return capabilities().canWatchFieldModification; |
|
663 |
} |
|
45714 | 664 |
|
2 | 665 |
public boolean canWatchFieldAccess() { |
666 |
validateVM(); |
|
667 |
return capabilities().canWatchFieldAccess; |
|
668 |
} |
|
45714 | 669 |
|
2 | 670 |
public boolean canGetBytecodes() { |
671 |
validateVM(); |
|
672 |
return capabilities().canGetBytecodes; |
|
673 |
} |
|
45714 | 674 |
|
2 | 675 |
public boolean canGetSyntheticAttribute() { |
676 |
validateVM(); |
|
677 |
return capabilities().canGetSyntheticAttribute; |
|
678 |
} |
|
45714 | 679 |
|
2 | 680 |
public boolean canGetOwnedMonitorInfo() { |
681 |
validateVM(); |
|
682 |
return capabilities().canGetOwnedMonitorInfo; |
|
683 |
} |
|
45714 | 684 |
|
2 | 685 |
public boolean canGetCurrentContendedMonitor() { |
686 |
validateVM(); |
|
687 |
return capabilities().canGetCurrentContendedMonitor; |
|
688 |
} |
|
45714 | 689 |
|
2 | 690 |
public boolean canGetMonitorInfo() { |
691 |
validateVM(); |
|
692 |
return capabilities().canGetMonitorInfo; |
|
693 |
} |
|
694 |
||
695 |
private boolean hasNewCapabilities() { |
|
696 |
return versionInfo().jdwpMajor > 1 || |
|
697 |
versionInfo().jdwpMinor >= 4; |
|
698 |
} |
|
699 |
||
700 |
boolean canGet1_5LanguageFeatures() { |
|
701 |
return versionInfo().jdwpMajor > 1 || |
|
702 |
versionInfo().jdwpMinor >= 5; |
|
703 |
} |
|
704 |
||
705 |
public boolean canUseInstanceFilters() { |
|
706 |
validateVM(); |
|
707 |
return hasNewCapabilities() && |
|
708 |
capabilitiesNew().canUseInstanceFilters; |
|
709 |
} |
|
45714 | 710 |
|
2 | 711 |
public boolean canRedefineClasses() { |
712 |
validateVM(); |
|
713 |
return hasNewCapabilities() && |
|
714 |
capabilitiesNew().canRedefineClasses; |
|
715 |
} |
|
45714 | 716 |
|
2 | 717 |
public boolean canAddMethod() { |
718 |
validateVM(); |
|
719 |
return hasNewCapabilities() && |
|
720 |
capabilitiesNew().canAddMethod; |
|
721 |
} |
|
45714 | 722 |
|
2 | 723 |
public boolean canUnrestrictedlyRedefineClasses() { |
724 |
validateVM(); |
|
725 |
return hasNewCapabilities() && |
|
726 |
capabilitiesNew().canUnrestrictedlyRedefineClasses; |
|
727 |
} |
|
45714 | 728 |
|
2 | 729 |
public boolean canPopFrames() { |
730 |
validateVM(); |
|
731 |
return hasNewCapabilities() && |
|
732 |
capabilitiesNew().canPopFrames; |
|
733 |
} |
|
45714 | 734 |
|
2 | 735 |
public boolean canGetMethodReturnValues() { |
736 |
return versionInfo().jdwpMajor > 1 || |
|
737 |
versionInfo().jdwpMinor >= 6; |
|
738 |
} |
|
45714 | 739 |
|
2 | 740 |
public boolean canGetInstanceInfo() { |
36511 | 741 |
if (versionInfo().jdwpMajor > 1 || |
742 |
versionInfo().jdwpMinor >= 6) { |
|
743 |
validateVM(); |
|
744 |
return hasNewCapabilities() && |
|
745 |
capabilitiesNew().canGetInstanceInfo; |
|
746 |
} else { |
|
2 | 747 |
return false; |
748 |
} |
|
749 |
} |
|
45714 | 750 |
|
2 | 751 |
public boolean canUseSourceNameFilters() { |
36511 | 752 |
return versionInfo().jdwpMajor > 1 || |
753 |
versionInfo().jdwpMinor >= 6; |
|
2 | 754 |
} |
45714 | 755 |
|
2 | 756 |
public boolean canForceEarlyReturn() { |
757 |
validateVM(); |
|
758 |
return hasNewCapabilities() && |
|
759 |
capabilitiesNew().canForceEarlyReturn; |
|
760 |
} |
|
45714 | 761 |
|
2 | 762 |
public boolean canBeModified() { |
763 |
return true; |
|
764 |
} |
|
45714 | 765 |
|
2 | 766 |
public boolean canGetSourceDebugExtension() { |
767 |
validateVM(); |
|
768 |
return hasNewCapabilities() && |
|
769 |
capabilitiesNew().canGetSourceDebugExtension; |
|
770 |
} |
|
45714 | 771 |
|
2 | 772 |
public boolean canGetClassFileVersion() { |
36511 | 773 |
return versionInfo().jdwpMajor > 1 || |
774 |
versionInfo().jdwpMinor >= 6; |
|
2 | 775 |
} |
45714 | 776 |
|
2 | 777 |
public boolean canGetConstantPool() { |
778 |
validateVM(); |
|
779 |
return hasNewCapabilities() && |
|
780 |
capabilitiesNew().canGetConstantPool; |
|
781 |
} |
|
45714 | 782 |
|
2 | 783 |
public boolean canRequestVMDeathEvent() { |
784 |
validateVM(); |
|
785 |
return hasNewCapabilities() && |
|
786 |
capabilitiesNew().canRequestVMDeathEvent; |
|
787 |
} |
|
45714 | 788 |
|
2 | 789 |
public boolean canRequestMonitorEvents() { |
790 |
validateVM(); |
|
791 |
return hasNewCapabilities() && |
|
792 |
capabilitiesNew().canRequestMonitorEvents; |
|
793 |
} |
|
45714 | 794 |
|
2 | 795 |
public boolean canGetMonitorFrameInfo() { |
796 |
validateVM(); |
|
797 |
return hasNewCapabilities() && |
|
798 |
capabilitiesNew().canGetMonitorFrameInfo; |
|
799 |
} |
|
45714 | 800 |
|
36511 | 801 |
public boolean canGetModuleInfo() { |
802 |
validateVM(); |
|
803 |
return versionInfo().jdwpMajor >= 9; |
|
804 |
} |
|
2 | 805 |
|
806 |
public void setDebugTraceMode(int traceFlags) { |
|
807 |
validateVM(); |
|
808 |
this.traceFlags = traceFlags; |
|
809 |
this.traceReceives = (traceFlags & TRACE_RECEIVES) != 0; |
|
810 |
} |
|
811 |
||
812 |
void printTrace(String string) { |
|
813 |
System.err.println("[JDI: " + string + "]"); |
|
814 |
} |
|
815 |
||
816 |
void printReceiveTrace(int depth, String string) { |
|
24969
afa6934dd8e8
8041679: Replace uses of StringBuffer with StringBuilder within core library classes
psandoz
parents:
14342
diff
changeset
|
817 |
StringBuilder sb = new StringBuilder("Receiving:"); |
2 | 818 |
for (int i = depth; i > 0; --i) { |
819 |
sb.append(" "); |
|
820 |
} |
|
821 |
sb.append(string); |
|
822 |
printTrace(sb.toString()); |
|
823 |
} |
|
824 |
||
825 |
private synchronized ReferenceTypeImpl addReferenceType(long id, |
|
45714 | 826 |
int tag, |
827 |
String signature) { |
|
2 | 828 |
if (typesByID == null) { |
829 |
initReferenceTypes(); |
|
830 |
} |
|
831 |
ReferenceTypeImpl type = null; |
|
832 |
switch(tag) { |
|
833 |
case JDWP.TypeTag.CLASS: |
|
834 |
type = new ClassTypeImpl(vm, id); |
|
835 |
break; |
|
836 |
case JDWP.TypeTag.INTERFACE: |
|
837 |
type = new InterfaceTypeImpl(vm, id); |
|
838 |
break; |
|
839 |
case JDWP.TypeTag.ARRAY: |
|
840 |
type = new ArrayTypeImpl(vm, id); |
|
841 |
break; |
|
842 |
default: |
|
843 |
throw new InternalException("Invalid reference type tag"); |
|
844 |
} |
|
845 |
||
846 |
/* |
|
847 |
* If a signature was specified, make sure to set it ASAP, to |
|
848 |
* prevent any needless JDWP command to retrieve it. (for example, |
|
849 |
* typesBySignature.add needs the signature, to maintain proper |
|
850 |
* ordering. |
|
851 |
*/ |
|
852 |
if (signature != null) { |
|
853 |
type.setSignature(signature); |
|
854 |
} |
|
855 |
||
25186
63e1a2ec30f5
8048267: Replace uses of 'new Long()' with appropriate alternative across core classes
prappo
parents:
24969
diff
changeset
|
856 |
typesByID.put(id, type); |
2 | 857 |
typesBySignature.add(type); |
858 |
||
859 |
if ((vm.traceFlags & VirtualMachine.TRACE_REFTYPES) != 0) { |
|
860 |
vm.printTrace("Caching new ReferenceType, sig=" + signature + |
|
861 |
", id=" + id); |
|
862 |
} |
|
863 |
||
864 |
return type; |
|
865 |
} |
|
866 |
||
867 |
synchronized void removeReferenceType(String signature) { |
|
868 |
if (typesByID == null) { |
|
869 |
return; |
|
870 |
} |
|
871 |
/* |
|
872 |
* There can be multiple classes with the same name. Since |
|
873 |
* we can't differentiate here, we first remove all |
|
874 |
* matching classes from our cache... |
|
875 |
*/ |
|
11277 | 876 |
Iterator<ReferenceType> iter = typesBySignature.iterator(); |
2 | 877 |
int matches = 0; |
878 |
while (iter.hasNext()) { |
|
879 |
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next(); |
|
880 |
int comp = signature.compareTo(type.signature()); |
|
881 |
if (comp == 0) { |
|
882 |
matches++; |
|
883 |
iter.remove(); |
|
25186
63e1a2ec30f5
8048267: Replace uses of 'new Long()' with appropriate alternative across core classes
prappo
parents:
24969
diff
changeset
|
884 |
typesByID.remove(type.ref()); |
2 | 885 |
if ((vm.traceFlags & VirtualMachine.TRACE_REFTYPES) != 0) { |
886 |
vm.printTrace("Uncaching ReferenceType, sig=" + signature + |
|
887 |
", id=" + type.ref()); |
|
888 |
} |
|
45714 | 889 |
// fix for 4359077, don't break out. list is no longer sorted |
890 |
// in the order we think |
|
2 | 891 |
} |
892 |
} |
|
893 |
||
894 |
/* |
|
895 |
* ...and if there was more than one, re-retrieve the classes |
|
896 |
* with that name |
|
897 |
*/ |
|
898 |
if (matches > 1) { |
|
899 |
retrieveClassesBySignature(signature); |
|
900 |
} |
|
901 |
} |
|
902 |
||
903 |
private synchronized List<ReferenceType> findReferenceTypes(String signature) { |
|
904 |
if (typesByID == null) { |
|
45714 | 905 |
return new ArrayList<>(0); |
2 | 906 |
} |
11277 | 907 |
Iterator<ReferenceType> iter = typesBySignature.iterator(); |
45714 | 908 |
List<ReferenceType> list = new ArrayList<>(); |
2 | 909 |
while (iter.hasNext()) { |
910 |
ReferenceTypeImpl type = (ReferenceTypeImpl)iter.next(); |
|
911 |
int comp = signature.compareTo(type.signature()); |
|
912 |
if (comp == 0) { |
|
913 |
list.add(type); |
|
45714 | 914 |
// fix for 4359077, don't break out. list is no longer sorted |
915 |
// in the order we think |
|
2 | 916 |
} |
917 |
} |
|
918 |
return list; |
|
919 |
} |
|
920 |
||
921 |
private void initReferenceTypes() { |
|
45714 | 922 |
typesByID = new HashMap<>(300); |
923 |
typesBySignature = new TreeSet<>(); |
|
2 | 924 |
} |
925 |
||
926 |
ReferenceTypeImpl referenceType(long ref, byte tag) { |
|
927 |
return referenceType(ref, tag, null); |
|
928 |
} |
|
929 |
||
930 |
ClassTypeImpl classType(long ref) { |
|
931 |
return (ClassTypeImpl)referenceType(ref, JDWP.TypeTag.CLASS, null); |
|
932 |
} |
|
933 |
||
934 |
InterfaceTypeImpl interfaceType(long ref) { |
|
935 |
return (InterfaceTypeImpl)referenceType(ref, JDWP.TypeTag.INTERFACE, null); |
|
936 |
} |
|
937 |
||
938 |
ArrayTypeImpl arrayType(long ref) { |
|
939 |
return (ArrayTypeImpl)referenceType(ref, JDWP.TypeTag.ARRAY, null); |
|
940 |
} |
|
941 |
||
45714 | 942 |
ReferenceTypeImpl referenceType(long id, int tag, String signature) { |
2 | 943 |
if ((vm.traceFlags & VirtualMachine.TRACE_REFTYPES) != 0) { |
24969
afa6934dd8e8
8041679: Replace uses of StringBuffer with StringBuilder within core library classes
psandoz
parents:
14342
diff
changeset
|
944 |
StringBuilder sb = new StringBuilder(); |
2 | 945 |
sb.append("Looking up "); |
946 |
if (tag == JDWP.TypeTag.CLASS) { |
|
947 |
sb.append("Class"); |
|
948 |
} else if (tag == JDWP.TypeTag.INTERFACE) { |
|
949 |
sb.append("Interface"); |
|
950 |
} else if (tag == JDWP.TypeTag.ARRAY) { |
|
951 |
sb.append("ArrayType"); |
|
952 |
} else { |
|
27957
24b4e6082f19
8055723: Replace concat String to append in StringBuilder parameters (dev)
weijun
parents:
25859
diff
changeset
|
953 |
sb.append("UNKNOWN TAG: ").append(tag); |
2 | 954 |
} |
955 |
if (signature != null) { |
|
27957
24b4e6082f19
8055723: Replace concat String to append in StringBuilder parameters (dev)
weijun
parents:
25859
diff
changeset
|
956 |
sb.append(", signature='").append(signature).append('\''); |
2 | 957 |
} |
27957
24b4e6082f19
8055723: Replace concat String to append in StringBuilder parameters (dev)
weijun
parents:
25859
diff
changeset
|
958 |
sb.append(", id=").append(id); |
2 | 959 |
vm.printTrace(sb.toString()); |
960 |
} |
|
961 |
if (id == 0) { |
|
962 |
return null; |
|
963 |
} else { |
|
964 |
ReferenceTypeImpl retType = null; |
|
965 |
synchronized (this) { |
|
966 |
if (typesByID != null) { |
|
25186
63e1a2ec30f5
8048267: Replace uses of 'new Long()' with appropriate alternative across core classes
prappo
parents:
24969
diff
changeset
|
967 |
retType = (ReferenceTypeImpl)typesByID.get(id); |
2 | 968 |
} |
969 |
if (retType == null) { |
|
970 |
retType = addReferenceType(id, tag, signature); |
|
971 |
} |
|
972 |
} |
|
973 |
return retType; |
|
974 |
} |
|
975 |
} |
|
976 |
||
977 |
private JDWP.VirtualMachine.Capabilities capabilities() { |
|
978 |
if (capabilities == null) { |
|
979 |
try { |
|
980 |
capabilities = JDWP.VirtualMachine |
|
981 |
.Capabilities.process(vm); |
|
982 |
} catch (JDWPException exc) { |
|
983 |
throw exc.toJDIException(); |
|
984 |
} |
|
985 |
} |
|
986 |
return capabilities; |
|
987 |
} |
|
988 |
||
989 |
private JDWP.VirtualMachine.CapabilitiesNew capabilitiesNew() { |
|
990 |
if (capabilitiesNew == null) { |
|
991 |
try { |
|
992 |
capabilitiesNew = JDWP.VirtualMachine |
|
993 |
.CapabilitiesNew.process(vm); |
|
994 |
} catch (JDWPException exc) { |
|
995 |
throw exc.toJDIException(); |
|
996 |
} |
|
997 |
} |
|
998 |
return capabilitiesNew; |
|
999 |
} |
|
1000 |
||
36511 | 1001 |
private synchronized ModuleReference addModule(long id) { |
1002 |
if (modulesByID == null) { |
|
45714 | 1003 |
modulesByID = new HashMap<>(77); |
36511 | 1004 |
} |
1005 |
ModuleReference module = new ModuleReferenceImpl(vm, id); |
|
1006 |
modulesByID.put(id, module); |
|
1007 |
return module; |
|
1008 |
} |
|
1009 |
||
1010 |
ModuleReference getModule(long id) { |
|
1011 |
if (id == 0) { |
|
1012 |
return null; |
|
1013 |
} else { |
|
1014 |
ModuleReference module = null; |
|
1015 |
synchronized (this) { |
|
1016 |
if (modulesByID != null) { |
|
1017 |
module = modulesByID.get(id); |
|
1018 |
} |
|
1019 |
if (module == null) { |
|
1020 |
module = addModule(id); |
|
1021 |
} |
|
1022 |
} |
|
1023 |
return module; |
|
1024 |
} |
|
1025 |
} |
|
1026 |
||
1027 |
private synchronized List<ModuleReference> retrieveAllModules() { |
|
1028 |
ModuleReferenceImpl[] reqModules; |
|
1029 |
try { |
|
1030 |
reqModules = JDWP.VirtualMachine.AllModules.process(vm).modules; |
|
1031 |
} catch (JDWPException exc) { |
|
1032 |
throw exc.toJDIException(); |
|
1033 |
} |
|
1034 |
ArrayList<ModuleReference> modules = new ArrayList<>(); |
|
1035 |
for (int i = 0; i < reqModules.length; i++) { |
|
1036 |
long moduleRef = reqModules[i].ref(); |
|
1037 |
ModuleReference module = getModule(moduleRef); |
|
1038 |
modules.add(module); |
|
1039 |
} |
|
1040 |
return modules; |
|
1041 |
} |
|
1042 |
||
2 | 1043 |
private List<ReferenceType> retrieveClassesBySignature(String signature) { |
1044 |
if ((vm.traceFlags & VirtualMachine.TRACE_REFTYPES) != 0) { |
|
1045 |
vm.printTrace("Retrieving matching ReferenceTypes, sig=" + signature); |
|
1046 |
} |
|
1047 |
JDWP.VirtualMachine.ClassesBySignature.ClassInfo[] cinfos; |
|
1048 |
try { |
|
1049 |
cinfos = JDWP.VirtualMachine.ClassesBySignature. |
|
1050 |
process(vm, signature).classes; |
|
1051 |
} catch (JDWPException exc) { |
|
1052 |
throw exc.toJDIException(); |
|
1053 |
} |
|
1054 |
||
1055 |
int count = cinfos.length; |
|
45714 | 1056 |
List<ReferenceType> list = new ArrayList<>(count); |
2 | 1057 |
|
1058 |
// Hold lock during processing to improve performance |
|
1059 |
synchronized (this) { |
|
1060 |
for (int i = 0; i < count; i++) { |
|
1061 |
JDWP.VirtualMachine.ClassesBySignature.ClassInfo ci = |
|
1062 |
cinfos[i]; |
|
1063 |
ReferenceTypeImpl type = referenceType(ci.typeID, |
|
1064 |
ci.refTypeTag, |
|
1065 |
signature); |
|
1066 |
type.setStatus(ci.status); |
|
1067 |
list.add(type); |
|
1068 |
} |
|
1069 |
} |
|
1070 |
return list; |
|
1071 |
} |
|
1072 |
||
1073 |
private void retrieveAllClasses1_4() { |
|
1074 |
JDWP.VirtualMachine.AllClasses.ClassInfo[] cinfos; |
|
1075 |
try { |
|
1076 |
cinfos = JDWP.VirtualMachine.AllClasses.process(vm).classes; |
|
1077 |
} catch (JDWPException exc) { |
|
1078 |
throw exc.toJDIException(); |
|
1079 |
} |
|
1080 |
||
1081 |
// Hold lock during processing to improve performance |
|
1082 |
// and to have safe check/set of retrievedAllTypes |
|
1083 |
synchronized (this) { |
|
1084 |
if (!retrievedAllTypes) { |
|
1085 |
// Number of classes |
|
1086 |
int count = cinfos.length; |
|
45714 | 1087 |
for (int i = 0; i < count; i++) { |
1088 |
JDWP.VirtualMachine.AllClasses.ClassInfo ci = cinfos[i]; |
|
2 | 1089 |
ReferenceTypeImpl type = referenceType(ci.typeID, |
1090 |
ci.refTypeTag, |
|
1091 |
ci.signature); |
|
1092 |
type.setStatus(ci.status); |
|
1093 |
} |
|
1094 |
retrievedAllTypes = true; |
|
1095 |
} |
|
1096 |
} |
|
1097 |
} |
|
1098 |
||
1099 |
private void retrieveAllClasses() { |
|
1100 |
if ((vm.traceFlags & VirtualMachine.TRACE_REFTYPES) != 0) { |
|
1101 |
vm.printTrace("Retrieving all ReferenceTypes"); |
|
1102 |
} |
|
1103 |
||
1104 |
if (!vm.canGet1_5LanguageFeatures()) { |
|
1105 |
retrieveAllClasses1_4(); |
|
1106 |
return; |
|
1107 |
} |
|
1108 |
||
1109 |
/* |
|
1110 |
* To save time (assuming the caller will be |
|
1111 |
* using then) we will get the generic sigs too. |
|
1112 |
*/ |
|
1113 |
JDWP.VirtualMachine.AllClassesWithGeneric.ClassInfo[] cinfos; |
|
1114 |
try { |
|
1115 |
cinfos = JDWP.VirtualMachine.AllClassesWithGeneric.process(vm).classes; |
|
1116 |
} catch (JDWPException exc) { |
|
1117 |
throw exc.toJDIException(); |
|
1118 |
} |
|
1119 |
||
1120 |
// Hold lock during processing to improve performance |
|
1121 |
// and to have safe check/set of retrievedAllTypes |
|
1122 |
synchronized (this) { |
|
1123 |
if (!retrievedAllTypes) { |
|
1124 |
// Number of classes |
|
1125 |
int count = cinfos.length; |
|
45714 | 1126 |
for (int i = 0; i < count; i++) { |
2 | 1127 |
JDWP.VirtualMachine.AllClassesWithGeneric.ClassInfo ci = |
1128 |
cinfos[i]; |
|
1129 |
ReferenceTypeImpl type = referenceType(ci.typeID, |
|
1130 |
ci.refTypeTag, |
|
1131 |
ci.signature); |
|
1132 |
type.setGenericSignature(ci.genericSignature); |
|
1133 |
type.setStatus(ci.status); |
|
1134 |
} |
|
1135 |
retrievedAllTypes = true; |
|
1136 |
} |
|
1137 |
} |
|
1138 |
} |
|
1139 |
||
1140 |
void sendToTarget(Packet packet) { |
|
1141 |
target.send(packet); |
|
1142 |
} |
|
1143 |
||
1144 |
void waitForTargetReply(Packet packet) { |
|
1145 |
target.waitForReply(packet); |
|
1146 |
/* |
|
1147 |
* If any object disposes have been batched up, send them now. |
|
1148 |
*/ |
|
1149 |
processBatchedDisposes(); |
|
1150 |
} |
|
1151 |
||
1152 |
Type findBootType(String signature) throws ClassNotLoadedException { |
|
33835
8cfbdfc35f82
8074696: Remote debugging session hangs for several minutes when calling findBootType
aeriksso
parents:
28059
diff
changeset
|
1153 |
List<ReferenceType> types = retrieveClassesBySignature(signature); |
11277 | 1154 |
Iterator<ReferenceType> iter = types.iterator(); |
2 | 1155 |
while (iter.hasNext()) { |
11277 | 1156 |
ReferenceType type = iter.next(); |
33835
8cfbdfc35f82
8074696: Remote debugging session hangs for several minutes when calling findBootType
aeriksso
parents:
28059
diff
changeset
|
1157 |
if (type.classLoader() == null) { |
2 | 1158 |
return type; |
1159 |
} |
|
1160 |
} |
|
1161 |
JNITypeParser parser = new JNITypeParser(signature); |
|
1162 |
throw new ClassNotLoadedException(parser.typeName(), |
|
1163 |
"Type " + parser.typeName() + " not loaded"); |
|
1164 |
} |
|
1165 |
||
1166 |
BooleanType theBooleanType() { |
|
1167 |
if (theBooleanType == null) { |
|
1168 |
synchronized(this) { |
|
1169 |
if (theBooleanType == null) { |
|
1170 |
theBooleanType = new BooleanTypeImpl(this); |
|
1171 |
} |
|
1172 |
} |
|
1173 |
} |
|
1174 |
return theBooleanType; |
|
1175 |
} |
|
1176 |
||
1177 |
ByteType theByteType() { |
|
1178 |
if (theByteType == null) { |
|
1179 |
synchronized(this) { |
|
1180 |
if (theByteType == null) { |
|
1181 |
theByteType = new ByteTypeImpl(this); |
|
1182 |
} |
|
1183 |
} |
|
1184 |
} |
|
1185 |
return theByteType; |
|
1186 |
} |
|
1187 |
||
1188 |
CharType theCharType() { |
|
1189 |
if (theCharType == null) { |
|
1190 |
synchronized(this) { |
|
1191 |
if (theCharType == null) { |
|
1192 |
theCharType = new CharTypeImpl(this); |
|
1193 |
} |
|
1194 |
} |
|
1195 |
} |
|
1196 |
return theCharType; |
|
1197 |
} |
|
1198 |
||
1199 |
ShortType theShortType() { |
|
1200 |
if (theShortType == null) { |
|
1201 |
synchronized(this) { |
|
1202 |
if (theShortType == null) { |
|
1203 |
theShortType = new ShortTypeImpl(this); |
|
1204 |
} |
|
1205 |
} |
|
1206 |
} |
|
1207 |
return theShortType; |
|
1208 |
} |
|
1209 |
||
1210 |
IntegerType theIntegerType() { |
|
1211 |
if (theIntegerType == null) { |
|
1212 |
synchronized(this) { |
|
1213 |
if (theIntegerType == null) { |
|
1214 |
theIntegerType = new IntegerTypeImpl(this); |
|
1215 |
} |
|
1216 |
} |
|
1217 |
} |
|
1218 |
return theIntegerType; |
|
1219 |
} |
|
1220 |
||
1221 |
LongType theLongType() { |
|
1222 |
if (theLongType == null) { |
|
1223 |
synchronized(this) { |
|
1224 |
if (theLongType == null) { |
|
1225 |
theLongType = new LongTypeImpl(this); |
|
1226 |
} |
|
1227 |
} |
|
1228 |
} |
|
1229 |
return theLongType; |
|
1230 |
} |
|
1231 |
||
1232 |
FloatType theFloatType() { |
|
1233 |
if (theFloatType == null) { |
|
1234 |
synchronized(this) { |
|
1235 |
if (theFloatType == null) { |
|
1236 |
theFloatType = new FloatTypeImpl(this); |
|
1237 |
} |
|
1238 |
} |
|
1239 |
} |
|
1240 |
return theFloatType; |
|
1241 |
} |
|
1242 |
||
1243 |
DoubleType theDoubleType() { |
|
1244 |
if (theDoubleType == null) { |
|
1245 |
synchronized(this) { |
|
1246 |
if (theDoubleType == null) { |
|
1247 |
theDoubleType = new DoubleTypeImpl(this); |
|
1248 |
} |
|
1249 |
} |
|
1250 |
} |
|
1251 |
return theDoubleType; |
|
1252 |
} |
|
1253 |
||
1254 |
VoidType theVoidType() { |
|
1255 |
if (theVoidType == null) { |
|
1256 |
synchronized(this) { |
|
1257 |
if (theVoidType == null) { |
|
1258 |
theVoidType = new VoidTypeImpl(this); |
|
1259 |
} |
|
1260 |
} |
|
1261 |
} |
|
1262 |
return theVoidType; |
|
1263 |
} |
|
1264 |
||
1265 |
PrimitiveType primitiveTypeMirror(byte tag) { |
|
1266 |
switch (tag) { |
|
1267 |
case JDWP.Tag.BOOLEAN: |
|
1268 |
return theBooleanType(); |
|
1269 |
case JDWP.Tag.BYTE: |
|
1270 |
return theByteType(); |
|
1271 |
case JDWP.Tag.CHAR: |
|
1272 |
return theCharType(); |
|
1273 |
case JDWP.Tag.SHORT: |
|
1274 |
return theShortType(); |
|
1275 |
case JDWP.Tag.INT: |
|
1276 |
return theIntegerType(); |
|
1277 |
case JDWP.Tag.LONG: |
|
1278 |
return theLongType(); |
|
1279 |
case JDWP.Tag.FLOAT: |
|
1280 |
return theFloatType(); |
|
1281 |
case JDWP.Tag.DOUBLE: |
|
1282 |
return theDoubleType(); |
|
1283 |
default: |
|
1284 |
throw new IllegalArgumentException("Unrecognized primitive tag " + tag); |
|
1285 |
} |
|
1286 |
} |
|
1287 |
||
1288 |
private void processBatchedDisposes() { |
|
1289 |
if (shutdown) { |
|
1290 |
return; |
|
1291 |
} |
|
1292 |
||
1293 |
JDWP.VirtualMachine.DisposeObjects.Request[] requests = null; |
|
1294 |
synchronized(batchedDisposeRequests) { |
|
1295 |
int size = batchedDisposeRequests.size(); |
|
1296 |
if (size >= DISPOSE_THRESHOLD) { |
|
1297 |
if ((traceFlags & TRACE_OBJREFS) != 0) { |
|
1298 |
printTrace("Dispose threashold reached. Will dispose " |
|
1299 |
+ size + " object references..."); |
|
1300 |
} |
|
1301 |
requests = new JDWP.VirtualMachine.DisposeObjects.Request[size]; |
|
1302 |
for (int i = 0; i < requests.length; i++) { |
|
51 | 1303 |
SoftObjectReference ref = batchedDisposeRequests.get(i); |
2 | 1304 |
if ((traceFlags & TRACE_OBJREFS) != 0) { |
1305 |
printTrace("Disposing object " + ref.key().longValue() + |
|
1306 |
" (ref count = " + ref.count() + ")"); |
|
1307 |
} |
|
1308 |
||
1309 |
// This is kludgy. We temporarily re-create an object |
|
1310 |
// reference so that we can correctly pass its id to the |
|
1311 |
// JDWP command. |
|
1312 |
requests[i] = |
|
1313 |
new JDWP.VirtualMachine.DisposeObjects.Request( |
|
1314 |
new ObjectReferenceImpl(this, ref.key().longValue()), |
|
1315 |
ref.count()); |
|
1316 |
} |
|
1317 |
batchedDisposeRequests.clear(); |
|
1318 |
} |
|
1319 |
} |
|
1320 |
if (requests != null) { |
|
1321 |
try { |
|
1322 |
JDWP.VirtualMachine.DisposeObjects.process(vm, requests); |
|
1323 |
} catch (JDWPException exc) { |
|
1324 |
throw exc.toJDIException(); |
|
1325 |
} |
|
1326 |
} |
|
1327 |
} |
|
1328 |
||
1329 |
private void batchForDispose(SoftObjectReference ref) { |
|
1330 |
if ((traceFlags & TRACE_OBJREFS) != 0) { |
|
1331 |
printTrace("Batching object " + ref.key().longValue() + |
|
1332 |
" for dispose (ref count = " + ref.count() + ")"); |
|
1333 |
} |
|
1334 |
batchedDisposeRequests.add(ref); |
|
1335 |
} |
|
1336 |
||
1337 |
private void processQueue() { |
|
11277 | 1338 |
Reference<?> ref; |
2 | 1339 |
//if ((traceFlags & TRACE_OBJREFS) != 0) { |
1340 |
// printTrace("Checking for softly reachable objects"); |
|
1341 |
//} |
|
1342 |
while ((ref = referenceQueue.poll()) != null) { |
|
1343 |
SoftObjectReference softRef = (SoftObjectReference)ref; |
|
1344 |
removeObjectMirror(softRef); |
|
1345 |
batchForDispose(softRef); |
|
1346 |
} |
|
1347 |
} |
|
1348 |
||
1349 |
synchronized ObjectReferenceImpl objectMirror(long id, int tag) { |
|
1350 |
||
1351 |
// Handle any queue elements that are not strongly reachable |
|
1352 |
processQueue(); |
|
1353 |
||
1354 |
if (id == 0) { |
|
1355 |
return null; |
|
1356 |
} |
|
1357 |
ObjectReferenceImpl object = null; |
|
25186
63e1a2ec30f5
8048267: Replace uses of 'new Long()' with appropriate alternative across core classes
prappo
parents:
24969
diff
changeset
|
1358 |
Long key = id; |
2 | 1359 |
|
1360 |
/* |
|
28059
e576535359cc
8067377: My hobby: caning, then then canning, the the can-can
martin
parents:
27957
diff
changeset
|
1361 |
* Attempt to retrieve an existing object reference |
2 | 1362 |
*/ |
1363 |
SoftObjectReference ref = objectsByID.get(key); |
|
1364 |
if (ref != null) { |
|
1365 |
object = ref.object(); |
|
1366 |
} |
|
1367 |
||
1368 |
/* |
|
1369 |
* If the object wasn't in the table, or it's soft reference was |
|
1370 |
* cleared, create a new instance. |
|
1371 |
*/ |
|
1372 |
if (object == null) { |
|
1373 |
switch (tag) { |
|
1374 |
case JDWP.Tag.OBJECT: |
|
1375 |
object = new ObjectReferenceImpl(vm, id); |
|
1376 |
break; |
|
1377 |
case JDWP.Tag.STRING: |
|
1378 |
object = new StringReferenceImpl(vm, id); |
|
1379 |
break; |
|
1380 |
case JDWP.Tag.ARRAY: |
|
1381 |
object = new ArrayReferenceImpl(vm, id); |
|
1382 |
break; |
|
1383 |
case JDWP.Tag.THREAD: |
|
1384 |
ThreadReferenceImpl thread = |
|
1385 |
new ThreadReferenceImpl(vm, id); |
|
1386 |
thread.addListener(this); |
|
1387 |
object = thread; |
|
1388 |
break; |
|
1389 |
case JDWP.Tag.THREAD_GROUP: |
|
1390 |
object = new ThreadGroupReferenceImpl(vm, id); |
|
1391 |
break; |
|
1392 |
case JDWP.Tag.CLASS_LOADER: |
|
1393 |
object = new ClassLoaderReferenceImpl(vm, id); |
|
1394 |
break; |
|
1395 |
case JDWP.Tag.CLASS_OBJECT: |
|
1396 |
object = new ClassObjectReferenceImpl(vm, id); |
|
1397 |
break; |
|
1398 |
default: |
|
1399 |
throw new IllegalArgumentException("Invalid object tag: " + tag); |
|
1400 |
} |
|
1401 |
ref = new SoftObjectReference(key, object, referenceQueue); |
|
1402 |
||
1403 |
/* |
|
1404 |
* If there was no previous entry in the table, we add one here |
|
1405 |
* If the previous entry was cleared, we replace it here. |
|
1406 |
*/ |
|
1407 |
objectsByID.put(key, ref); |
|
1408 |
if ((traceFlags & TRACE_OBJREFS) != 0) { |
|
1409 |
printTrace("Creating new " + |
|
1410 |
object.getClass().getName() + " (id = " + id + ")"); |
|
1411 |
} |
|
1412 |
} else { |
|
1413 |
ref.incrementCount(); |
|
1414 |
} |
|
1415 |
||
1416 |
return object; |
|
1417 |
} |
|
1418 |
||
1419 |
synchronized void removeObjectMirror(ObjectReferenceImpl object) { |
|
1420 |
// Handle any queue elements that are not strongly reachable |
|
1421 |
processQueue(); |
|
1422 |
||
25186
63e1a2ec30f5
8048267: Replace uses of 'new Long()' with appropriate alternative across core classes
prappo
parents:
24969
diff
changeset
|
1423 |
SoftObjectReference ref = objectsByID.remove(object.ref()); |
2 | 1424 |
if (ref != null) { |
1425 |
batchForDispose(ref); |
|
1426 |
} else { |
|
1427 |
/* |
|
1428 |
* If there's a live ObjectReference about, it better be part |
|
1429 |
* of the cache. |
|
1430 |
*/ |
|
1431 |
throw new InternalException("ObjectReference " + object.ref() + |
|
1432 |
" not found in object cache"); |
|
1433 |
} |
|
1434 |
} |
|
1435 |
||
1436 |
synchronized void removeObjectMirror(SoftObjectReference ref) { |
|
1437 |
/* |
|
1438 |
* This will remove the soft reference if it has not been |
|
1439 |
* replaced in the cache. |
|
1440 |
*/ |
|
1441 |
objectsByID.remove(ref.key()); |
|
1442 |
} |
|
1443 |
||
1444 |
ObjectReferenceImpl objectMirror(long id) { |
|
1445 |
return objectMirror(id, JDWP.Tag.OBJECT); |
|
1446 |
} |
|
1447 |
||
1448 |
StringReferenceImpl stringMirror(long id) { |
|
1449 |
return (StringReferenceImpl)objectMirror(id, JDWP.Tag.STRING); |
|
1450 |
} |
|
1451 |
||
1452 |
ArrayReferenceImpl arrayMirror(long id) { |
|
1453 |
return (ArrayReferenceImpl)objectMirror(id, JDWP.Tag.ARRAY); |
|
1454 |
} |
|
1455 |
||
1456 |
ThreadReferenceImpl threadMirror(long id) { |
|
1457 |
return (ThreadReferenceImpl)objectMirror(id, JDWP.Tag.THREAD); |
|
1458 |
} |
|
1459 |
||
1460 |
ThreadGroupReferenceImpl threadGroupMirror(long id) { |
|
1461 |
return (ThreadGroupReferenceImpl)objectMirror(id, |
|
1462 |
JDWP.Tag.THREAD_GROUP); |
|
1463 |
} |
|
1464 |
||
1465 |
ClassLoaderReferenceImpl classLoaderMirror(long id) { |
|
1466 |
return (ClassLoaderReferenceImpl)objectMirror(id, |
|
1467 |
JDWP.Tag.CLASS_LOADER); |
|
1468 |
} |
|
1469 |
||
1470 |
ClassObjectReferenceImpl classObjectMirror(long id) { |
|
1471 |
return (ClassObjectReferenceImpl)objectMirror(id, |
|
1472 |
JDWP.Tag.CLASS_OBJECT); |
|
1473 |
} |
|
1474 |
||
36511 | 1475 |
ModuleReferenceImpl moduleMirror(long id) { |
1476 |
return (ModuleReferenceImpl)getModule(id); |
|
1477 |
} |
|
1478 |
||
2 | 1479 |
/* |
1480 |
* Implementation of PathSearchingVirtualMachine |
|
1481 |
*/ |
|
1482 |
private JDWP.VirtualMachine.ClassPaths getClasspath() { |
|
1483 |
if (pathInfo == null) { |
|
1484 |
try { |
|
1485 |
pathInfo = JDWP.VirtualMachine.ClassPaths.process(vm); |
|
1486 |
} catch (JDWPException exc) { |
|
1487 |
throw exc.toJDIException(); |
|
1488 |
} |
|
1489 |
} |
|
1490 |
return pathInfo; |
|
1491 |
} |
|
1492 |
||
1493 |
public List<String> classPath() { |
|
1494 |
return Arrays.asList(getClasspath().classpaths); |
|
1495 |
} |
|
1496 |
||
1497 |
public List<String> bootClassPath() { |
|
38332
95dd1e0f418f
8152847: JDI use of sun.boot.class.path needs to be updated for Jigsaw
dsamersoff
parents:
36511
diff
changeset
|
1498 |
return Collections.emptyList(); |
2 | 1499 |
} |
1500 |
||
1501 |
public String baseDirectory() { |
|
1502 |
return getClasspath().baseDir; |
|
1503 |
} |
|
1504 |
||
1505 |
public void setDefaultStratum(String stratum) { |
|
1506 |
defaultStratum = stratum; |
|
1507 |
if (stratum == null) { |
|
1508 |
stratum = ""; |
|
1509 |
} |
|
1510 |
try { |
|
1511 |
JDWP.VirtualMachine.SetDefaultStratum.process(vm, |
|
1512 |
stratum); |
|
1513 |
} catch (JDWPException exc) { |
|
1514 |
throw exc.toJDIException(); |
|
1515 |
} |
|
1516 |
} |
|
1517 |
||
1518 |
public String getDefaultStratum() { |
|
1519 |
return defaultStratum; |
|
1520 |
} |
|
1521 |
||
1522 |
ThreadGroup threadGroupForJDI() { |
|
1523 |
return threadGroupForJDI; |
|
1524 |
} |
|
1525 |
||
1526 |
static private class SoftObjectReference extends SoftReference<ObjectReferenceImpl> { |
|
1527 |
int count; |
|
1528 |
Long key; |
|
1529 |
||
1530 |
SoftObjectReference(Long key, ObjectReferenceImpl mirror, |
|
1531 |
ReferenceQueue<ObjectReferenceImpl> queue) { |
|
1532 |
super(mirror, queue); |
|
1533 |
this.count = 1; |
|
1534 |
this.key = key; |
|
1535 |
} |
|
1536 |
||
1537 |
int count() { |
|
1538 |
return count; |
|
1539 |
} |
|
1540 |
||
1541 |
void incrementCount() { |
|
1542 |
count++; |
|
1543 |
} |
|
1544 |
||
1545 |
Long key() { |
|
1546 |
return key; |
|
1547 |
} |
|
1548 |
||
1549 |
ObjectReferenceImpl object() { |
|
51 | 1550 |
return get(); |
2 | 1551 |
} |
1552 |
} |
|
1553 |
} |