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check argument types in JVM_InvokeMethod

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Method.invoke must throw an IllegalArgumentException if it receives
the wrong number or types of arguments, and since this isn't done by
the OpenJDK class library, we must do it in the VM.
This commit is contained in:
Joel Dice 2013-01-24 12:13:42 -07:00
parent 0adccdc99c
commit 36eee724c9
1 changed files with 53 additions and 0 deletions
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53
src/classpath-openjdk.cpp
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@ -4795,6 +4795,59 @@ jvmInvokeMethod(Thread* t, uintptr_t* arguments)
instance = 0;
}
if ((args == 0 ? 0 : objectArrayLength(t, *args))
!= methodParameterCount(t, vmMethod))
{
throwNew(t, Machine::IllegalArgumentExceptionType);
}
if (methodParameterCount(t, vmMethod)) {
PROTECT(t, vmMethod);
unsigned specLength = byteArrayLength(t, methodSpec(t, vmMethod));
THREAD_RUNTIME_ARRAY(t, char, spec, specLength);
memcpy(spec, &byteArrayBody(t, methodSpec(t, vmMethod), 0), specLength);
unsigned i = 0;
for (MethodSpecIterator it(t, spec); it.hasNext();) {
object type;
bool objectType = false;
const char* p = it.next();
switch (*p) {
case 'Z': type = vm::type(t, Machine::BooleanType); break;
case 'B': type = vm::type(t, Machine::ByteType); break;
case 'S': type = vm::type(t, Machine::ShortType); break;
case 'C': type = vm::type(t, Machine::CharType); break;
case 'I': type = vm::type(t, Machine::IntType); break;
case 'F': type = vm::type(t, Machine::FloatType); break;
case 'J': type = vm::type(t, Machine::LongType); break;
case 'D': type = vm::type(t, Machine::DoubleType); break;
case 'L': ++ p;
case '[': {
objectType = true;
unsigned nameLength = it.s - p;
THREAD_RUNTIME_ARRAY(t, char, name, nameLength);
memcpy(name, p, nameLength - 1);
name[nameLength - 1] = 0;
type = resolveClass
(t, classLoader(t, methodClass(t, vmMethod)), name);
} break;
default:
abort();
}
object arg = objectArrayBody(t, *args, i++);
if ((arg == 0 and (not objectType))
or (arg and (not instanceOf(t, type, arg))))
{
// fprintf(stderr, "%s is not a %s\n", arg ? &byteArrayBody(t, className(t, objectClass(t, arg)), 0) : reinterpret_cast<const int8_t*>("<null>"), &byteArrayBody(t, className(t, type), 0));
throwNew(t, Machine::IllegalArgumentExceptionType);
}
}
}
unsigned returnCode = methodReturnCode(t, vmMethod);
THREAD_RESOURCE0(t, {