topic Re: SOLR 6.5.5 is not starting : Invalid Java version 11.0.14.1 in Alfresco Forum

SOLR 6.5.5 is not starting : Invalid Java version 11.0.14.1

HarikrishnanMV — Mon, 28 Feb 2022 14:02:19 GMT

Trying to setup SOLR 6.5.5 and getting the following error : "Invalid Java version 11.0.14.1".

What is the reason for this error and how to solve this

Re: SOLR 6.5.5 is not starting : Invalid Java version 11.0.14.1

angelborroy — Mon, 28 Feb 2022 16:18:20 GMT

It's a known issue for SOLR 6, that won't be solved.

Use another Java version with only 3 version fields (like 11.0.14).

Re: SOLR 6.5.5 is not starting : Invalid Java version 11.0.14.1

james_covington — Wed, 02 Mar 2022 16:04:17 GMT

Can you please elaborate on the issue, or provide a link to the bug? We are also experiencing the same issue.

Re: SOLR 6.5.5 is not starting : Invalid Java version 11.0.14.1

angelborroy — Thu, 03 Mar 2022 08:17:22 GMT

https://github.com/eclipse/jetty.project/issues/2090

Re: SOLR 6.5.5 is not starting : Invalid Java version 11.0.14.1

bmlong — Fri, 11 Mar 2022 14:24:29 GMT

What is the solution here? Our server team upgraded to that version of Java for security reasons. They won't go back. Is there a Jetty patch planned? Our ASIE runtime is just out of commission at the moment.

Re: SOLR 6.5.5 is not starting : Invalid Java version 11.0.14.1

bmlong — Fri, 11 Mar 2022 18:20:42 GMT

I took this up myself. I did some investigating, found the issue in the source, and found a solution. Here is the text of my response to Hyland Support. The context is getting Jetty updated, so the versions are in reference to Jetty:

I got a workaround to well...work. I tried v9.4.x to no avail, as there are too many changes with configuration. I at first, thought I needed to backport something from v9.4.x to v9.3.x. However, after looking at the Jetty source, I found that the fix made its way into v9.3.x. It made it with the following commit: https://github.com/eclipse/jetty.project/commit/b0fc078a1c795f8c1704a57fe5f6c49922348488

So I cloned the project, checked out the v9.3.30.v20211001 tag, performed a Maven build, copied up the jetty-distribution ZIP into the solr/server directory and unpacked it. I backed up 'lib' and 'start.jar' and effectively replaced them with the files from the new build. The new build had additional files, but I only copied the ones that already existed in the ASIE/Solr distribution. And I copied the non-Jetty files from the old 'lib' to the new one (metrics, javax).

It all appears to be working right now.