Re: Extract information from a Java source (possible with syntax errors)

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Wed, 08 Apr 2009 19:32:57 -0400

Message-ID:

<49dd3421$0$90276$14726298@news.sunsite.dk>

Stefan Istrate wrote:

On Apr 8, 4:38 am, Arne Vajh?j <a...@vajhoej.dk> wrote:

Stefan Istrate wrote:

I want to extract information from a Java source file about the
packages, imports, classes, methods and, for every method, about its
local variables. The source file may contain syntax error, so I need
also a skip mechanism. Could you recommend me a good solution provided
by Sun to do this? I don't want to use tools written by any third
party, just Sun libraries. Maybe there is a possibility to invoke the
parser used by javac? A parse tree also would be great.
I've taken a look on sun.tools.java.Parser but it's not so good
documented. Also it seems that it needs to be improved because I'm
getting some NullPointerExceptions when it parses the class body.

You will need some third party code, because you need a custom
backend for the parser.

Sorry for double posting. I will continue only on comp.lang.java.help.
The thread is http://groups.google.com/group/comp.lang.java.help/browse_thread/thread/61778e0404f411f9

Then you should not post here in the first place.

Arne