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How to resolve method binding in advice declaration [message #596408]

Sat, 13 October 2007 19:21

Laleh

Messages: 10
Registered: July 2009

Junior Member

Hello,

I am trying to get the information like metho- name, method-parameters and
the type (class) the method belongs to, from the MethodInvocation node in
the AdviceVisitor. The problem is that I can get just the method name and
its arguments, but I cannot get the arguments' type or the type which this
method belong to. Even when I try to resove binding for the method, I get
exception.

Here is my code:

public class AdviceVisitor extends AjASTVisitor {

// some code..

public boolean visit(MethodInvocation node) {
ITypeBinding type = node.getExpression().resolveTypeBinding();
IMethodBinding method=node.resolveMethodBinding();
if (type != null && method != null) {
ITypeBinding[] params = method.getParameterTypes();
if (params != null) {
for (int i = 0; i < params.length; i++) {
parameters=params[i].getName();
}
}
}
// some code ..
return true;
}}

It seems that type and the method are "null" and then I get
"java.lang.NullPointerException". Can any one help me to resolve this
problem?

Thanks,

Laleh

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Re: How to resolve method binding in advice declaration [message #1726331 is a reply to message #596408]

Fri, 11 March 2016 13:50

Moxin Chen

Messages: 1
Registered: March 2016

Junior Member

Hello, I'm a college student and I'm working on a project in which I used jdt to parse traverse java projects. However, recently I am trouble by the same problem as you had encountered. I receive NPE while using "resolveMethodBinding" on MethodInvocation. Have you already solved your problem? Could you give me some help? Thanks a lot. Embarrassed

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