private void printVar(OutputSink out, LocalVariable var, StackFrame frame) {
out.print(" " + var.name());
if (var.isVisible(frame)) {
Value val = frame.getValue(var);
out.println(" = " + val.toString());
} else {
out.println(" is not in scope");
}
}
private void commandLocals() throws NoSessionException {
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;
}
List<LocalVariable> vars;
try {
vars = frame.visibleVariables();
if (vars == null || vars.size() == 0) {
env.failure("No local variables");
return;
}
} catch (AbsentInformationException e) {
env.failure(
"Local variable information not available."
+ " Compile with -g to generate variable information");
return;
}
OutputSink out = env.getOutputSink();
out.println("Method arguments:");
for (LocalVariable var : vars) {
if (var.isArgument()) {
printVar(out, var, frame);
}
}
out.println("Local variables:");
for (LocalVariable var : vars) {
if (!var.isArgument()) {
printVar(out, var, frame);
}
}
out.show();
return;
}
void compareTwoDifferentVars(LocalVariable lv1, LocalVariable lv2) {
if (!lv1.equals(lv2)) {
println(" Success: difference of local vars detected");
} else {
failure(" Failure: difference of local vars is NOT detected");
}
if (lv1.hashCode() != lv2.hashCode()) {
println(" Success: hashCode's of different local vars differ");
} else {
failure(" Failure: hashCode's of different local vars are equal");
}
if (lv1.compareTo(lv2) != 0) {
println(" Success: compareTo() is correct for different local vars");
} else {
failure(" Failure: compareTo() is NOT correct for different local vars");
}
}
void compareTwoEqualVars(LocalVariable lv1, LocalVariable lv2) {
if (lv1.equals(lv2)) {
println(" Success: equality of local vars detected");
} else {
failure(" Failure: equality of local vars is NOT detected");
}
if (lv1.hashCode() == lv2.hashCode()) {
println(" Success: hashCode's of equal local vars are equal");
} else {
failure(" Failure: hashCode's of equal local vars differ");
}
if (lv1.compareTo(lv2) == 0) {
println(" Success: compareTo() is correct for equal local vars");
} else {
failure(" Failure: compareTo() is NOT correct for equal local vars");
}
}
void printVariable(LocalVariable lv, int index) throws Exception {
if (lv == null) {
println(" Var name: null");
return;
}
String tyname = lv.typeName();
println(
" Var: "
+ lv.name()
+ ", index: "
+ index
+ ", type: "
+ tyname
+ ", Signature: "
+ lv.type().signature());
// Sorry, there is no way to take local variable slot numbers using JDI!
// It is because method LocalVariableImpl.slot() is private.
}
protected void runTests() throws Exception {
/*
* Get to the top of main()
* to determine targetClass and mainThread
*/
BreakpointEvent bpe = startToMain("GetLocalVariables2Targ");
targetClass = bpe.location().declaringType();
mainThread = bpe.thread();
EventRequestManager erm = vm().eventRequestManager();
bpe = resumeTo("GetLocalVariables2Targ", "bar", "(I)Z");
/*
* Inspect the stack frame for main(), not bar()...
*/
StackFrame frame = bpe.thread().frame(1);
List localVars = frame.visibleVariables();
System.out.println(" Visible variables at this point are: ");
for (Iterator it = localVars.iterator(); it.hasNext(); ) {
LocalVariable lv = (LocalVariable) it.next();
System.out.print(lv.name());
System.out.print(" typeName: ");
System.out.print(lv.typeName());
System.out.print(" signature: ");
System.out.print(lv.type().signature());
System.out.print(" primitive type: ");
System.out.println(lv.type().name());
if ("command".equals(lv.name())) {
failure("Failure: LocalVariable \"command\" should not be visible at this point.");
if (lv.isVisible(frame)) {
System.out.println("Failure: \"command.isvisible(frame)\" returned true.");
}
}
}
/*
* resume the target listening for events
*/
listenUntilVMDisconnect();
/*
* deal with results of test
* if anything has called failure("foo") testFailed will be true
*/
if (!testFailed) {
println("GetLocalVariables2Test: passed");
} else {
throw new Exception("GetLocalVariables2Test: failed");
}
}