import java.lang.reflect.Method; //導入方法依賴的package包/類

private void validateRuleMethod(MethodRuleDefinition, ?> ruleDefinition, Method ruleMethod, RuleSourceValidationProblemCollector problems) {

if (Modifier.isPrivate(ruleMethod.getModifiers())) {

problems.add(ruleMethod, "A rule method cannot be private");

}

if (Modifier.isAbstract(ruleMethod.getModifiers())) {

problems.add(ruleMethod, "A rule method cannot be abstract");

}

if (ruleMethod.getTypeParameters().length > 0) {

problems.add(ruleMethod, "Cannot have type variables (i.e. cannot be a generic method)");

}

// TODO validations on method: synthetic, bridge methods, varargs, abstract, native

ModelType> returnType = ModelType.returnType(ruleMethod);

if (returnType.isRawClassOfParameterizedType()) {

problems.add(ruleMethod, "Raw type " + returnType + " used for return type (all type parameters must be specified of parameterized type)");

}

for (int i = 0; i < ruleDefinition.getReferences().size(); i++) {

ModelReference> reference = ruleDefinition.getReferences().get(i);

if (reference.getType().isRawClassOfParameterizedType()) {

problems.add(ruleMethod, "Raw type " + reference.getType() + " used for parameter " + (i + 1) + " (all type parameters must be specified of parameterized type)");

}

if (reference.getPath() != null) {

try {

ModelPath.validatePath(reference.getPath().getPath());

} catch (Exception e) {

problems.add(ruleDefinition, "The declared model element path '" + reference.getPath().getPath() + "' used for parameter " + (i + 1) + " is not a valid path", e);

}

}

}

}

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