JDK-8248901: Signed immediate support in [...] breaks 8u build on Windows/RHEL 6

[Severin Gehwolf]

Hi,

JDK-8248901 got backported to 8u and is included in 8u312-b01. It ended
up there as a pre-requisite for JDK-8247766 which isn't yet approved
(thus, pushed). This breaks the Vanilla JDK 8u builds for Linux (built
on RHEL/CentOS 6) and Windows.

See:
https://bugs.openjdk.java.net/browse/JDK-8270379?focusedCommentId=14440384&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14440384

and

https://bugs.openjdk.java.net/browse/JDK-8270379?focusedCommentId=14440626&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14440626

Could somebody please look into it or shall we rather revert?

Opinions?

Thanks,
Severin