Lucee admin throws exception determining Java version

dev support
1

Hi, I’m trying to run Lucee in a windows container (openjdk:16-windowsservercore-1809 to be exact).

When I try to view the Lucee server admin, I get an exception:

Array index [2] out of range, array size is [1]
The Error Occurred in
/admin/overview.cfm: line 777
called from /admin/overview.cfm: line 296
called from /admin/web.cfm: line 492
called from /admin/server.cfm: line 2

Looking at line 777 of overview.cfm I can see it’s trying to determine the Java version:

<cfscript>
	function getJavaVersion() {
		var verArr=listToArray(server.java.version,'.');
		if(verArr[1]>2) return verArr[1];
		return verArr[2];
	}
</cfscript>

I’m running the latest Lucee (5.3.7.43) on Tomcat 9. This is the output of Java --version

openjdk version “16-ea” 2021-03-16
OpenJDK Runtime Environment (build 16-ea+21-1209)
OpenJDK 64-Bit Server VM (build 16-ea+21-1209, mixed mode, sharing)

Any suggestions other than switch to a different JVM that doesn’t trip up the code in overview.cfm?

2

what is this value?

3

16-ea

My base image is from here: Docker

(openjdk:16-windowsservercore-1809 to be exact)

4

Maybe since it is an early access it doesn’t have an official version number yet? Try 15 or below.

5

OK. Minor bug. Each new major release of OpenJDK return only the major with java.version.
Example 14+36 only returns “14” and 14.0.2_12 return “14.0.2”.

6

Bug created and fix submitted.
https://luceeserver.atlassian.net/browse/LDEV-3112

EDIT:
Actually that didn’t fix it.
The problem is JDK 16 returns “16-ea” for the server.java.version which causes the error. This is because of the pre-release info “ea” appended to the version.
var verArr=listToArray(server.java.version,‘.-’); would fix the problem but I don’t know if it would be worth it.

7

I added some code in a comment in your PR. This should fix it.

function getJavaVersion() {
	var verArr=listToArray(server.java.version,'.');
	if(verArr[1]>2) {
		return verArr[1];
	} elseif (verArr.len() GT 1) {
		return verArr[2];
	} else {
	    return val(server.java.version);
	}
}

image

8

I created a new pull request for this, I referenced your ticket.

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