[jdt-core-dev] use JDT AST in a standalone application?

[William Deng <deng@xxxxxxxxxxx>]

Hi,
I am building a pattern based Java bug detection tool (like findbugs, 
pmd, etc.).
And I want to use JDT as the front-end to get DOM AST from Java source 
file. I know
how to do it in the plugin like following:
ASTParser parser = ASTParser.newParser(AST.JLS2);
parser.setSource(file);  
ASTNode ast= parser.createAST(null);

But I also want my tool to be able to run in the command line
(outside of eclipse). Is there any way to get AST using JDT outside of 
eclipse?
Thanks a lot!

Happy New Year

William Deng