eclipse - I try to add simple java project to Deployment Assembly and it disappear -

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hi stackoverflower,
use eclipse helios , problem.

i have main project name main. dynamic web project.
have util project name util. simple java project.

i open deployment assembly main project.
click add -> project -> choose util project-> finish
in screen show new project in table

source : util | deploy path : /web-inf/lib/util.jar

anything good, click ok.
when go deployment assembly again util project disappear.
, sure when deploy, util project doesn't become jar file library.

thanks suggestion.

to echo comments above, took notice of bug 318068 "aggregate deployment assembly fixes helios sr1", includes a lot bug fixes regarding feature.

the op diewland reports:

it works! update eclipse , ok.

so eclipse3.6.1 recommended "deployment assembly" operations.


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