Esempio n. 1
0
 private void commandFrame(StringTokenizer t) throws NoSessionException {
   ThreadReference current = context.getCurrentThread();
   if (current == null) {
     env.failure("No current thread.");
     return;
   }
   if (!t.hasMoreTokens()) {
     env.error("usage: frame <frame-index>");
     return;
   }
   String idToken = t.nextToken();
   int n;
   try {
     n = Integer.valueOf(idToken).intValue();
   } catch (NumberFormatException e) {
     n = 0;
   }
   if (n <= 0) {
     env.error("use positive frame index");
     return;
   }
   try {
     int delta = context.setCurrentFrameIndex(current, n);
     if (delta == 0) {
       env.notice("Frame unchanged.");
     } else if (delta < 0) {
       env.notice("Moved up " + -delta + " frames.");
     } else {
       env.notice("Moved down " + delta + " frames.");
     }
   } catch (VMNotInterruptedException e) {
     env.failure("Target VM must be in interrupted state.");
   }
 }
Esempio n. 2
0
  private void commandStop(StringTokenizer t) throws NoSessionException {
    String token;

    if (!t.hasMoreTokens()) {
      listEventRequests();
    } else {
      token = t.nextToken();
      // Ignore optional "at" or "in" token.
      // Allowed for backward compatibility.
      if (token.equals("at") || token.equals("in")) {
        if (t.hasMoreTokens()) {
          token = t.nextToken();
        } else {
          env.error("Missing breakpoint specification.");
          return;
        }
      }
      BreakpointSpec bpSpec = parseBreakpointSpec(token);
      if (bpSpec != null) {
        // ### Add sanity-checks for deferred breakpoint.
        runtime.install(bpSpec);
      } else {
        env.error("Ill-formed breakpoint specification.");
      }
    }
  }
Esempio n. 3
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  private void commandClear(StringTokenizer t) throws NoSessionException {
    if (!t.hasMoreTokens()) {
      // Print set breakpoints
      listEventRequests();
      return;
    }
    // ### need 'clear all'
    BreakpointSpec bpSpec = parseBreakpointSpec(t.nextToken());
    if (bpSpec != null) {
      List<EventRequestSpec> specs = runtime.eventRequestSpecs();

      if (specs.isEmpty()) {
        env.notice("No breakpoints set.");
      } else {
        List<EventRequestSpec> toDelete = new ArrayList<EventRequestSpec>();
        for (EventRequestSpec spec : specs) {
          if (spec.equals(bpSpec)) {
            toDelete.add(spec);
          }
        }
        // The request used for matching should be found
        if (toDelete.size() <= 1) {
          env.notice("No matching breakpoint set.");
        }
        for (EventRequestSpec spec : toDelete) {
          runtime.delete(spec);
        }
      }
    } else {
      env.error("Ill-formed breakpoint specification.");
    }
  }
Esempio n. 4
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 private ThreadReference findThread(String idToken) throws NoSessionException {
   String id;
   ThreadReference thread = null;
   if (idToken.startsWith("t@")) {
     id = idToken.substring(2);
   } else {
     id = idToken;
   }
   try {
     ThreadReference[] threads = threads();
     long threadID = Long.parseLong(id, 16);
     for (ThreadReference thread2 : threads) {
       if (thread2.uniqueID() == threadID) {
         thread = thread2;
         break;
       }
     }
     if (thread == null) {
       // env.failure("No thread for id \"" + idToken + "\"");
       env.failure("\"" + idToken + "\" is not a valid thread id.");
     }
   } catch (NumberFormatException e) {
     env.error("Thread id \"" + idToken + "\" is ill-formed.");
     thread = null;
   }
   return thread;
 }
Esempio n. 5
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 private void commandWhere(StringTokenizer t, boolean showPC) throws NoSessionException {
   ThreadReference current = context.getCurrentThread();
   if (!t.hasMoreTokens()) {
     if (current == null) {
       env.error("No thread specified.");
       return;
     }
     dumpStack(current, showPC);
   } else {
     String token = t.nextToken();
     if (token.toLowerCase().equals("all")) {
       ThreadIterator it = allThreads();
       while (it.hasNext()) {
         ThreadReference thread = it.next();
         out.println(thread.name() + ": ");
         dumpStack(thread, showPC);
       }
     } else {
       ThreadReference thread = findThread(t.nextToken());
       // ### Do we want to set current thread here?
       // ### Should notify user of change.
       if (thread != null) {
         context.setCurrentThread(thread);
       }
       dumpStack(thread, showPC);
     }
   }
 }
Esempio n. 6
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 private void commandMethods(StringTokenizer t) throws NoSessionException {
   if (!t.hasMoreTokens()) {
     env.error("No class specified.");
     return;
   }
   String idClass = t.nextToken();
   ReferenceType cls = findClass(idClass);
   if (cls != null) {
     List<Method> methods = cls.allMethods();
     OutputSink out = env.getOutputSink();
     for (int i = 0; i < methods.size(); i++) {
       Method method = methods.get(i);
       out.print(method.declaringType().name() + " " + method.name() + "(");
       Iterator<String> it = method.argumentTypeNames().iterator();
       if (it.hasNext()) {
         while (true) {
           out.print(it.next());
           if (!it.hasNext()) {
             break;
           }
           out.print(", ");
         }
       }
       out.println(")");
     }
     out.show();
   } else {
     // ### Should validate class name syntax.
     env.failure("\"" + idClass + "\" is not a valid id or class name.");
   }
 }
Esempio n. 7
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 private void commandKill(StringTokenizer t) throws NoSessionException {
   // ### Should change the way in which thread ids and threadgroup names
   // ### are distinguished.
   if (!t.hasMoreTokens()) {
     env.error("Usage: kill <threadgroup name> or <thread id>");
     return;
   }
   while (t.hasMoreTokens()) {
     String idToken = t.nextToken();
     ThreadReference thread = findThread(idToken);
     if (thread != null) {
       runtime.stopThread(thread);
       env.notice("Thread " + thread.name() + " killed.");
       return;
     } else {
       /* Check for threadgroup name, NOT skipping "system". */
       // ### Should skip "system"?  Classic 'jdb' does this.
       // ### Should deal with possible non-uniqueness of threadgroup names.
       ThreadGroupIterator itg = allThreadGroups();
       while (itg.hasNext()) {
         ThreadGroupReference tg = itg.nextThreadGroup();
         if (tg.name().equals(idToken)) {
           ThreadIterator it = new ThreadIterator(tg);
           while (it.hasNext()) {
             runtime.stopThread(it.nextThread());
           }
           env.notice("Threadgroup " + tg.name() + "killed.");
           return;
         }
       }
       env.failure("\"" + idToken + "\" is not a valid threadgroup or id.");
     }
   }
 }
Esempio n. 8
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 /** Command: unmonitor Unmonitor an expression */
 private void commandUnmonitor(StringTokenizer t) throws NoSessionException {
   if (!t.hasMoreTokens()) {
     env.error("Argument required");
   } else {
     env.getMonitorListModel().remove(t.nextToken(""));
   }
 }
Esempio n. 9
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 private void commandPrint(StringTokenizer t, boolean dumpObject) throws NoSessionException {
   if (!t.hasMoreTokens()) {
     // ### Probably confused if expresion contains whitespace.
     env.error("No expression specified.");
     return;
   }
   ThreadReference current = context.getCurrentThread();
   if (current == null) {
     env.failure("No default thread specified: " + "use the \"thread\" command first.");
     return;
   }
   StackFrame frame;
   try {
     frame = context.getCurrentFrame(current);
     if (frame == null) {
       env.failure("Thread has not yet created any stack frames.");
       return;
     }
   } catch (VMNotInterruptedException e) {
     env.failure("Target VM must be in interrupted state.");
     return;
   }
   while (t.hasMoreTokens()) {
     String expr = t.nextToken("");
     Value val = null;
     try {
       val = runtime.evaluate(frame, expr);
     } catch (Exception e) {
       env.error("Exception: " + e);
       // ### Fix this!
     }
     if (val == null) {
       return; // Error message already printed
     }
     OutputSink out = env.getOutputSink();
     if (dumpObject && (val instanceof ObjectReference) && !(val instanceof StringReference)) {
       ObjectReference obj = (ObjectReference) val;
       ReferenceType refType = obj.referenceType();
       out.println(expr + " = " + val.toString() + " {");
       dump(out, obj, refType, refType);
       out.println("}");
     } else {
       out.println(expr + " = " + val.toString());
     }
     out.show();
   }
 }
Esempio n. 10
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 private void commandThread(StringTokenizer t) throws NoSessionException {
   if (!t.hasMoreTokens()) {
     env.error("Thread number not specified.");
     return;
   }
   ThreadReference thread = findThread(t.nextToken());
   if (thread != null) {
     // ### Should notify user.
     context.setCurrentThread(thread);
   }
 }
Esempio n. 11
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 private void commandThreadGroup(StringTokenizer t) throws NoSessionException {
   if (!t.hasMoreTokens()) {
     env.error("Threadgroup name not specified.");
     return;
   }
   String name = t.nextToken();
   ThreadGroupReference tg = findThreadGroup(name);
   if (tg == null) {
     env.failure(name + " is not a valid threadgroup name.");
   } else {
     // ### Should notify user.
     setDefaultThreadGroup(tg);
   }
 }
Esempio n. 12
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 private void commandView(StringTokenizer t) throws NoSessionException {
   if (!t.hasMoreTokens()) {
     env.error("Argument required");
   } else {
     String name = t.nextToken();
     if (name.endsWith(".java") || name.indexOf(File.separatorChar) >= 0) {
       env.viewSource(name);
     } else {
       // ### JDI crashes taking line number for class.
       /**
        * *** ReferenceType cls = findClass(name); if (cls != null) {
        * env.viewLocation(cls.location()); } else { env.failure("No such class"); } ***
        */
       String fileName = name.replace('.', File.separatorChar) + ".java";
       env.viewSource(fileName);
     }
   }
 }
Esempio n. 13
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 private void commandDown(StringTokenizer t) throws NoSessionException {
   ThreadReference current = context.getCurrentThread();
   if (current == null) {
     env.failure("No current thread.");
     return;
   }
   int nLevels = readCount(t);
   if (nLevels <= 0) {
     env.error("usage: down [n frames]");
     return;
   }
   try {
     int delta = context.moveCurrentFrameIndex(current, nLevels);
     if (delta == 0) {
       env.notice("Already at bottom of stack.");
     } else if (delta < nLevels) {
       env.notice("Moved down " + delta + " frames to bottom of stack.");
     }
   } catch (VMNotInterruptedException e) {
     env.failure("Target VM must be in interrupted state.");
   }
 }
Esempio n. 14
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 private void commandList(StringTokenizer t) throws NoSessionException {
   ThreadReference current = context.getCurrentThread();
   if (current == null) {
     env.error("No thread specified.");
     return;
   }
   Location loc;
   try {
     StackFrame frame = context.getCurrentFrame(current);
     if (frame == null) {
       env.failure("Thread has not yet begun execution.");
       return;
     }
     loc = frame.location();
   } catch (VMNotInterruptedException e) {
     env.failure("Target VM must be in interrupted state.");
     return;
   }
   SourceModel source = sourceManager.sourceForLocation(loc);
   if (source == null) {
     if (loc.method().isNative()) {
       env.failure("Current method is native.");
       return;
     }
     env.failure("No source available for " + Utils.locationString(loc) + ".");
     return;
   }
   ReferenceType refType = loc.declaringType();
   int lineno = loc.lineNumber();
   if (t.hasMoreTokens()) {
     String id = t.nextToken();
     // See if token is a line number.
     try {
       lineno = Integer.valueOf(id).intValue();
     } catch (NumberFormatException nfe) {
       // It isn't -- see if it's a method name.
       List<Method> meths = refType.methodsByName(id);
       if (meths == null || meths.size() == 0) {
         env.failure(
             id + " is not a valid line number or " + "method name for class " + refType.name());
         return;
       } else if (meths.size() > 1) {
         env.failure(id + " is an ambiguous method name in" + refType.name());
         return;
       }
       loc = meths.get(0).location();
       lineno = loc.lineNumber();
     }
   }
   int startLine = (lineno > 4) ? lineno - 4 : 1;
   int endLine = startLine + 9;
   String sourceLine = source.sourceLine(lineno);
   if (sourceLine == null) {
     env.failure("" + lineno + " is an invalid line number for " + refType.name());
   } else {
     OutputSink out = env.getOutputSink();
     for (int i = startLine; i <= endLine; i++) {
       sourceLine = source.sourceLine(i);
       if (sourceLine == null) {
         break;
       }
       out.print(i);
       out.print("\t");
       if (i == lineno) {
         out.print("=> ");
       } else {
         out.print("   ");
       }
       out.println(sourceLine);
     }
     out.show();
   }
 }