Question

I’m using Eclipse ast/jdt as is explained in this post – How can I use the java Eclipse Abstract Syntax Tree in a project outside Eclipse? (ie not an eclipse plugin)

The problem is that I always get null when I tried to use resolveBinding(), and it’s because of not using setProject(IJavaProject) or setEnvironment(String[], String[], String[], boolean), as is written in this post – VariableDeclarationFragment node resolveBindind() returns null in eclipse/jdt/ast

Solving the returning null issue, I tried to use the code but ended up getting an error saying Workspace is closed.

What might be wrong?

I have .project file in the my workspace

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>AstRewrite4</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
        <buildCommand>
            <name>org.eclipse.jdt.core.javabuilder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>org.eclipse.jdt.core.javanature</nature>
    </natures>
</projectDescription>

Answer 1

You’re not in a Plug-In/Bundle Runtime, so the org.eclipse.core.resources plug-in wasn’t “started”. Initialization of the Workspace and associated objects only happens then. You’ll have to call the start() method on ResourcesPlugin yourself–not that I’m promising that’ll solve everything, or that that’s not going to cause you other problems.