# Swapping from java 6 to java 7

**URL:** <https://forum.inductiveautomation.com/t/swapping-from-java-6-to-java-7/5878>\
**Category:** Ignition\
**Created:** [February 15, 2013, 4:45pm UTC](https://forum.inductiveautomation.com/t/swapping-from-java-6-to-java-7/5878 "2013-02-15T16:45:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![diat150](https://avatars.discourse-cdn.com/v4/letter/d/a587f6/32.png) [@diat150](https://forum.inductiveautomation.com/u/diat150)\
**Post date:** [February 15, 2013, 4:45pm UTC](https://forum.inductiveautomation.com/t/swapping-from-java-6-to-java-7/5878/1 "2013-02-15T16:45:16Z")

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I am going to make a switch from java 6 using 7.2.9 to one of the later versions of 7.3(need active x). what steps should I follow to get it converted over? should I upgrade ignition first, then uninstall java 6 then install java 7? do I have to do anything special to get it to launch on java 7?

Do I even have to change from java 6 to 7 on the gateway?

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**Author:** ![Carl.Gould](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/carl.gould/32/7262_2.png) [@Carl.Gould](https://forum.inductiveautomation.com/u/Carl.Gould)\
**Post date:** [February 15, 2013, 5:10pm UTC](https://forum.inductiveautomation.com/t/swapping-from-java-6-to-java-7/5878/2 "2013-02-15T17:10:23Z")

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You don’t need to change the version of Java on the Gateway, although you’re welcome to (as long as you’re not using the mobile module).

Just do them one at a time. If you do upgrade Java on the Gateway, you _may_ need to edit your ignition.conf file to point to the right version of Java. On your clients, depending on what version of Java 6 you were running, you may need to clear your webstart cache (simply do a Start \> Run \> “[tt]javaws -uninstall[/tt]” )