I'm starting to experience this problem now so I can try this fix -- Steve, was there supposed to be an attachment for step 1 in your email?

On 09/28/2012 11:58 AM, Steven Bethard wrote:
Have any of you working on the new cTAKES trunk noticed JCasGen constantly running? I 
have Eclipse set to "Build Automatically" and I'm constantly seeing tasks 
running in the background in my Progress view that look like:

Compiling ctakes-type-system/target/generated-sources/...
Refreshing ctakes-type-system/target/generated-sources/...

These tasks run, complete and then immediately start again, and as a result, my 
Eclipse runs very slowly. Are other people experiencing this too?

I think the solution is to create a real jcasgen-maven-plugin and a proper m2e 
connector that only runs JCasGen when the type system has changed (or on 
project import, or if target/generated-sources/jcasgen is missing, etc.).

What do you all think? Does this approach sound okay? I have a working plugin 
and m2e connector, but I didn't want to just commit the change because if I do, 
everyone will have to install the m2e connector in their Eclipse environment. 
So I figured we should discuss it first.

Steve

P.S. For anyone was experiencing the same problem, could you try out the 
following fix?

(1) Apply the attached patch to cTAKES trunk, which uses the 
jcasgen-maven-plugin in the pom.xml files instead of the exec-maven-plugin and 
build-helper-maven-plugin:
     $ svn patch ctakes-jcasgen-maven-plugin.diff

(2) Open Eclipse, and refresh your cTAKES checkout. You should see a bunch of errors in the 
Problems view that look like "Project configuration is not up-to-date with pom.xml. Run 
Maven->Update Project or use Quick Fix."

(3) Update the Maven projects as suggested.

(4) You should now see some new errors that look like: "Plugin execution not covered 
by lifecycle configuration: org.cleartk:jcasgen-maven-plugin:0.9.0:generate (execution: 
default, phase: generate-sources)"

(5) Install the m2e connector for the jcasgen-maven-plugin. Go to Help -> Install New 
Software…, add the update site 
http://cleartk.googlecode.com/git/jcasgen-m2e-connector/org.cleartk.plugin.jcasgen.m2e.repo/target/repository/
 and install the "m2e connector for JCasGen Maven plugin". Eclipse will restart.

(6) Update the Maven projects again, as in step (3). The errors should all be 
gone now.

Some things to try to make sure the fix worked:

(1) Check that  JCasGen is no longer be constantly running in the background. Go to the 
Progress view and make sure that eventually you see just "No operations to display 
at this time."

(2) Modify a few non-type-system files and and make sure (in the Progress view 
again) that JCasGen does not run.

(3) Modify a type system, and make sure that JCasGen *does* run. An easy way to 
check this is to change an annotation or feature name and make sure you got 
some new compile errors.



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