public void exceptionEvent(ExceptionEvent event) {
ObjectReference or = event.exception();
ReferenceType rt = or.referenceType();
String exceptionName = rt.name();
// Field messageField = Throwable.class.getField("detailMessage");
Field messageField = rt.fieldByName("detailMessage");
// System.out.println("field " + messageField);
Value messageValue = or.getValue(messageField);
// System.out.println("mess val " + messageValue);
// "java.lang.ArrayIndexOutOfBoundsException"
int last = exceptionName.lastIndexOf('.');
String message = exceptionName.substring(last + 1);
if (messageValue != null) {
String messageStr = messageValue.toString();
if (messageStr.startsWith("\"")) {
messageStr = messageStr.substring(1, messageStr.length() - 1);
}
message += ": " + messageStr;
}
// System.out.println("mess type " + messageValue.type());
// StringReference messageReference = (StringReference) messageValue.type();
// First just report the exception and its placement
reportException(message, or, event.thread());
// Then try to pretty it up with a better message
handleCommonErrors(exceptionName, message, listener);
if (editor != null) {
editor.deactivateRun();
}
}
public static boolean isCollected(ObjectReference reference) {
try {
return !isJ2ME(reference.virtualMachine()) && reference.isCollected();
} catch (UnsupportedOperationException e) {
LOG.info(e);
}
return false;
}
/** Return a description of an object. */
static String description(ObjectReference ref) {
ReferenceType clazz = ref.referenceType();
long id = ref.uniqueID();
if (clazz == null) {
return toHex(id);
} else {
return MessageOutput.format(
"object description and hex id", new Object[] {clazz.name(), toHex(id)});
}
}
void ckObjectValue(Value retValue) {
ObjectReference theRetValue = (ObjectReference) retValue;
Field theIVarField = targetClass.fieldByName("eobjectValue");
ObjectReference theRetValField = (ObjectReference) targetClass.getValue(theIVarField);
if (!theRetValue.equals(theRetValField)) {
failure("failure: Object: expected " + theIVarField + ", got " + theRetValField);
} else {
System.out.println("Passed: Object: " + theRetValField);
earlyReturns++;
}
}
public static void enableCollection(ObjectReference reference) {
try {
reference.enableCollection();
} catch (UnsupportedOperationException ignored) {
// ignore: some J2ME implementations does not provide this operation
}
}
public Value valueCurrent() {
if (object == null) {
return refType.getValue(field());
} else {
return object.getValue(field());
}
}
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();
}
}
private void dump(
OutputSink out, ObjectReference obj, ReferenceType refType, ReferenceType refTypeBase) {
for (Field field : refType.fields()) {
out.print(" ");
if (!refType.equals(refTypeBase)) {
out.print(refType.name() + ".");
}
out.print(field.name() + ": ");
Object o = obj.getValue(field);
out.println((o == null) ? "null" : o.toString()); // Bug ID 4374471
}
if (refType instanceof ClassType) {
ClassType sup = ((ClassType) refType).superclass();
if (sup != null) {
dump(out, obj, sup, refTypeBase);
}
} else if (refType instanceof InterfaceType) {
for (InterfaceType sup : ((InterfaceType) refType).superinterfaces()) {
dump(out, obj, sup, refTypeBase);
}
}
}
/**
* Move through a list of stack frames, searching for references to code found in the current
* sketch. Return with a RunnerException that contains the location of the error, or if nothing is
* found, just return with a RunnerException that wraps the error message itself.
*/
protected SketchException findException(
String message, ObjectReference or, ThreadReference thread) {
try {
// use to dump the stack for debugging
// for (StackFrame frame : thread.frames()) {
// System.out.println("frame: " + frame);
// }
List<StackFrame> frames = thread.frames();
for (StackFrame frame : frames) {
try {
Location location = frame.location();
String filename = null;
filename = location.sourceName();
int lineNumber = location.lineNumber() - 1;
SketchException rex = build.placeException(message, filename, lineNumber);
if (rex != null) {
return rex;
}
} catch (AbsentInformationException e) {
// Any of the thread.blah() methods can throw an AbsentInformationEx
// if that bit of data is missing. If so, just write out the error
// message to the console.
// e.printStackTrace(); // not useful
exception = new SketchException(message);
exception.hideStackTrace();
listener.statusError(exception);
}
}
} catch (IncompatibleThreadStateException e) {
// This shouldn't happen, but if it does, print the exception in case
// it's something that needs to be debugged separately.
e.printStackTrace();
}
// before giving up, try to extract from the throwable object itself
// since sometimes exceptions are re-thrown from a different context
try {
// assume object reference is Throwable, get stack trace
Method method =
((ClassType) or.referenceType())
.concreteMethodByName("getStackTrace", "()[Ljava/lang/StackTraceElement;");
ArrayReference result =
(ArrayReference)
or.invokeMethod(
thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);
// iterate through stack frames and pull filename and line number for each
for (Value val : result.getValues()) {
ObjectReference ref = (ObjectReference) val;
method =
((ClassType) ref.referenceType())
.concreteMethodByName("getFileName", "()Ljava/lang/String;");
StringReference strref =
(StringReference)
ref.invokeMethod(
thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);
String filename = strref == null ? "Unknown Source" : strref.value();
method = ((ClassType) ref.referenceType()).concreteMethodByName("getLineNumber", "()I");
IntegerValue intval =
(IntegerValue)
ref.invokeMethod(
thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);
int lineNumber = intval.intValue() - 1;
SketchException rex = build.placeException(message, filename, lineNumber);
if (rex != null) {
return rex;
}
}
// for (Method m : ((ClassType) or.referenceType()).allMethods()) {
// System.out.println(m + " | " + m.signature() + " | " + m.genericSignature());
// }
// Implemented for 2.0b9, writes a stack trace when there's an internal error inside core.
method = ((ClassType) or.referenceType()).concreteMethodByName("printStackTrace", "()V");
// System.err.println("got method " + method);
or.invokeMethod(
thread, method, new ArrayList<Value>(), ObjectReference.INVOKE_SINGLE_THREADED);
} catch (Exception e) {
e.printStackTrace();
}
// Give up, nothing found inside the pile of stack frames
SketchException rex = new SketchException(message);
// exception is being created /here/, so stack trace is not useful
rex.hideStackTrace();
return rex;
}
// copied from FrameVariablesTree
private void buildVariables(
DebuggerContextImpl debuggerContext,
final EvaluationContextImpl evaluationContext,
@NotNull DebugProcessImpl debugProcess,
XValueChildrenList children,
ObjectReference thisObjectReference,
Location location)
throws EvaluateException {
final Set<String> visibleLocals = new HashSet<String>();
if (NodeRendererSettings.getInstance().getClassRenderer().SHOW_VAL_FIELDS_AS_LOCAL_VARIABLES) {
if (thisObjectReference != null
&& debugProcess.getVirtualMachineProxy().canGetSyntheticAttribute()) {
final ReferenceType thisRefType = thisObjectReference.referenceType();
if (thisRefType instanceof ClassType
&& location != null
&& thisRefType.equals(location.declaringType())
&& thisRefType.name().contains("$")) { // makes sense for nested classes only
for (Field field : thisRefType.fields()) {
if (DebuggerUtils.isSynthetic(field)
&& StringUtil.startsWith(
field.name(), FieldDescriptorImpl.OUTER_LOCAL_VAR_FIELD_PREFIX)) {
final FieldDescriptorImpl fieldDescriptor =
myNodeManager.getFieldDescriptor(myDescriptor, thisObjectReference, field);
children.add(JavaValue.create(fieldDescriptor, evaluationContext, myNodeManager));
visibleLocals.add(fieldDescriptor.calcValueName());
}
}
}
}
}
boolean myAutoWatchMode = DebuggerSettings.getInstance().AUTO_VARIABLES_MODE;
if (evaluationContext == null) {
return;
}
final SourcePosition sourcePosition = debuggerContext.getSourcePosition();
if (sourcePosition == null) {
return;
}
try {
if (!XDebuggerSettingsManager.getInstance().getDataViewSettings().isAutoExpressions()
&& !myAutoWatchMode) {
// optimization
superBuildVariables(evaluationContext, children);
} else {
final Map<String, LocalVariableProxyImpl> visibleVariables =
getVisibleVariables(getStackFrameProxy());
final Pair<Set<String>, Set<TextWithImports>> usedVars =
ApplicationManager.getApplication()
.runReadAction(
new Computable<Pair<Set<String>, Set<TextWithImports>>>() {
@Override
public Pair<Set<String>, Set<TextWithImports>> compute() {
return findReferencedVars(
ContainerUtil.union(visibleVariables.keySet(), visibleLocals),
sourcePosition);
}
});
// add locals
if (myAutoWatchMode) {
for (String var : usedVars.first) {
LocalVariableProxyImpl local = visibleVariables.get(var);
if (local != null) {
children.add(
JavaValue.create(
myNodeManager.getLocalVariableDescriptor(null, local),
evaluationContext,
myNodeManager));
}
}
} else {
superBuildVariables(evaluationContext, children);
}
final EvaluationContextImpl evalContextCopy =
evaluationContext.createEvaluationContext(evaluationContext.getThisObject());
evalContextCopy.setAutoLoadClasses(false);
final Set<TextWithImports> extraVars =
computeExtraVars(usedVars, sourcePosition, evaluationContext);
// add extra vars
addToChildrenFrom(extraVars, children, evaluationContext);
// add expressions
addToChildrenFrom(usedVars.second, children, evalContextCopy);
}
} catch (EvaluateException e) {
if (e.getCause() instanceof AbsentInformationException) {
children.add(
new DummyMessageValueNode(
MessageDescriptor.LOCAL_VARIABLES_INFO_UNAVAILABLE.getLabel(),
XDebuggerUIConstants.INFORMATION_MESSAGE_ICON));
// trying to collect values from variable slots
try {
for (Map.Entry<DecompiledLocalVariable, Value> entry :
LocalVariablesUtil.fetchValues(getStackFrameProxy(), debugProcess).entrySet()) {
children.add(
JavaValue.create(
myNodeManager.getArgumentValueDescriptor(
null, entry.getKey(), entry.getValue()),
evaluationContext,
myNodeManager));
}
} catch (Exception ex) {
LOG.info(ex);
}
} else {
throw e;
}
}
}
