Steps to reproduce:
1 Install 7u10 b16
2 Open JCP, set "EnableJava" feature to OFF. JCP should look like off-before-install-7u6.png
3 Install 7u6
4 Open JCP, if 7u6 JCP is used(off-after-install-7u6.png), then this bug is reproduced.

If with enable Java setting, 7u10 JCP instead of 7u6 JCP is used:
1 Install 7u10 b16
2 Open JCP, set "EnableJava" feature to ON. JCP should look like on-before-install-7u6.png
3 Install 7u6
4 Open JCP, 7u10 JCP instead of 7u6 JCP is used(on-after-install-7u6.png).


Note:
1 It's different from https://jbs.oracle.com/bugs/browse/JDK-8003308. In 8003308, 7u2 JCP is used even with enable Java setting
2 JDK-8003308 is closed as "Won't fix" and "bug in 7u2 installer code, not practical to fix. Additionally, downgrade scenarios are not generally supported. "
If we don't need to test downgrade scenarios, please let us know and then we can remove all downgrade scenarios in our test ws.