void* _bcLookupInterfaceMethodImpl(Env* env, ClassInfoHeader* header, Object* thiz, uint32_t index) {
TypeInfo* typeInfo = header->typeInfo;
ITables* itables = thiz->clazz->itables;
ITable* itable = itables->cache;
if (itable->typeInfo == typeInfo) {
return itable->table.table[index];
}
uint32_t i;
for (i = 0; i < itables->count; i++) {
itable = itables->table[i];
if (itable->typeInfo == typeInfo) {
itables->cache = itable;
return itable->table.table[index];
}
}
ENTER;
initializeClass(env, header);
Class* ownerInterface = header->clazz;
char message[256];
snprintf(message, 256, "Class %s does not implement the requested interface %s",
rvmToBinaryClassName(env, thiz->clazz->name), rvmToBinaryClassName(env, ownerInterface->name));
rvmThrowIncompatibleClassChangeError(env, message);
LEAVE(NULL);
}
void* lookupInterfaceMethod(Env* env, ClassInfoHeader* header, Object* thiz, char* name, char* desc) {
initializeClass(env, header);
if (rvmExceptionCheck(env)) return NULL;
Class* ownerInterface = header->clazz;
if (!rvmIsInstanceOf(env, thiz, ownerInterface)) {
char message[256];
snprintf(message, 256, "Class %s does not implement the requested interface %s",
rvmToBinaryClassName(env, thiz->clazz->name), rvmToBinaryClassName(env, ownerInterface->name));
rvmThrowIncompatibleClassChangeError(env, message);
return NULL;
}
Method* method = rvmGetInstanceMethod(env, thiz->clazz, name, desc);
Object* throwable = rvmExceptionClear(env);
if (!method && throwable->clazz != java_lang_NoSuchMethodError) {
rvmThrow(env, throwable);
return NULL;
}
if (!method || METHOD_IS_ABSTRACT(method)) {
rvmThrowAbstractMethodError(env, ""); // TODO: Message
return NULL;
}
if (!METHOD_IS_PUBLIC(method)) {
rvmThrowIllegalAccessError(env, ""); // TODO: Message
return NULL;
}
return method->synchronizedImpl ? method->synchronizedImpl : method->impl;
}
Class* rvmFindClassUsingLoader(Env* env, const char* className, ClassLoader* classLoader) {
if (!classLoader || classLoader->parent == NULL) {
// This is the bootstrap classloader. No need to call ClassLoader.loadClass()
return findBootClass(env, className);
}
char* binaryClassName = rvmToBinaryClassName(env, className);
if (!binaryClassName) return NULL;
Object* binaryClassNameString = rvmNewInternedStringUTF(env, binaryClassName, -1);
if (!binaryClassNameString) return NULL;
Method* loadClassMethod = rvmGetInstanceMethod(env, java_lang_ClassLoader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
if (!loadClassMethod) return NULL;
Object* clazz = rvmCallObjectInstanceMethod(env, (Object*) classLoader, loadClassMethod, binaryClassNameString);
if (rvmExceptionOccurred(env)) return NULL;
return (Class*) clazz;
}
void* rvmResolveNativeMethodImpl(Env* env, NativeMethod* method, const char* shortMangledName, const char* longMangledName, ClassLoader* classLoader, void** ptr) {
void* f = method->nativeImpl;
if (!f) {
DynamicLib* nativeLibs = NULL;
if (!classLoader || classLoader->parent == NULL) {
// This is the bootstrap classloader
nativeLibs = bootNativeLibs;
} else if (classLoader->parent->parent == NULL && classLoader->object.clazz->classLoader == NULL) {
// This is the system classloader
nativeLibs = mainNativeLibs;
} else {
// Unknown classloader
rvmThrowUnsatisfiedLinkError(env, "Unknown classloader");
return NULL;
}
obtainNativeLibsLock();
TRACEF("Searching for native method using short name: %s", shortMangledName);
f = rvmFindDynamicLibSymbol(env, nativeLibs, shortMangledName, TRUE);
if (f) {
TRACEF("Found native method using short name: %s", shortMangledName);
} else if (strcmp(shortMangledName, longMangledName)) {
TRACEF("Searching for native method using long name: %s", longMangledName);
f = rvmFindDynamicLibSymbol(env, nativeLibs, longMangledName, TRUE);
if (f) {
TRACEF("Found native method using long name: %s", longMangledName);
}
}
method->nativeImpl = f;
releaseNativeLibsLock();
}
if (!f) {
char* className = rvmToBinaryClassName(env, method->method.clazz->name);
if (className) {
rvmThrowNewf(env, java_lang_UnsatisfiedLinkError, "%s.%s%s", className, method->method.name, method->method.desc);
}
return NULL;
}
// TODO: Remember ptr to allow it to be reset when the JNI RegisterNatives/UnregisterNatives functions are called
*ptr = f;
return f;
}
jboolean rvmThrowClassNotFoundException(Env* env, const char* className) {
char* msg = rvmToBinaryClassName(env, className);
if (!msg) return FALSE;
return rvmThrowNew(env, java_lang_ClassNotFoundException, msg);
}