# 7.9.x with OpenJDK9 Garbage Collection

**URL:** <https://forum.inductiveautomation.com/t/7-9-x-with-openjdk9-garbage-collection/17992>\
**Category:** Ignition\
**Created:** [May 10, 2018, 8:49pm UTC](https://forum.inductiveautomation.com/t/7-9-x-with-openjdk9-garbage-collection/17992 "2018-05-10T20:49:04Z")\
**Posts on this page:** 1\
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**Author:** ![KathyApplebaum](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kathyapplebaum/32/7261_2.png) [@KathyApplebaum](https://forum.inductiveautomation.com/u/KathyApplebaum)\
**Post date:** [May 10, 2018, 10:58pm UTC](https://forum.inductiveautomation.com/t/7-9-x-with-openjdk9-garbage-collection/17992/3 "2018-05-10T22:58:35Z")

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Yes, it’s using the default, which for Java 9 is G1GC, unless you’ve set something different.

In 7.9.8 we’re making G1GC the default for Java 8, too (unless you change the .conf file) because we didn’t realize how awful parallel GC is. 😳

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