# Removing unnecessary (?) jars from exported apps: ok if it still runs?

**URL:** https://discourse.processing.org/t/removing-unnecessary-jars-from-exported-apps-ok-if-it-still-runs/5503
**Category:** Processing
**Created:** [November 13, 2018, 3:59pm UTC](https://discourse.processing.org/t/removing-unnecessary-jars-from-exported-apps-ok-if-it-still-runs/5503 "2018-11-13T15:59:31Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![dtmr](https://avatars.discourse-cdn.com/v4/letter/d/4da419/32.png) [@dtmr](https://discourse.processing.org/u/dtmr)
#### Post date: [November 13, 2018, 3:59pm UTC](https://discourse.processing.org/t/removing-unnecessary-jars-from-exported-apps-ok-if-it-still-runs/5503/1 "2018-11-13T15:59:31Z")

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Is it save to delete the jogl-\*.jar files (OpenGL?) from exported apps if the apps still start afterwards and appear to work normally across Windows/Linux/MacOS? In other words: Would there be a startup failure if these files were really needed (rather than a run-time failure under special circumstances which I couldn’t all test)?

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### Author: ![kfrajer](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/kfrajer/32/196_2.png) [@kfrajer](https://discourse.processing.org/u/kfrajer)
#### Post date: [November 14, 2018, 2:36am UTC](https://discourse.processing.org/t/removing-unnecessary-jars-from-exported-apps-ok-if-it-still-runs/5503/2 "2018-11-14T02:36:53Z")

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If I were you, I would remove them. I am saying this from experience and from my limited exposure to Processing’s source code.

Kf