[news.eclipse.tools.jdt] Programatically change java build path

[ryan.hollom@xxxxxxxxxx (Ryan Hollom)]

Are there (non-internal) APIs available to programatically change the java 
build path on a java project?  In particular, I am looking to remove some 
source entries on the build path, as well as add an exclusion directory on 
an existing source directory.

On a related note, is there a way to programatically disable the java 
builder?

Thanks in advance,
Ryan