[SOLR-8689] bin/solr.cmd does not start with recent Verona builds of Java 9 because of version parsing issue

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 5.5, 6.0
• Fix Version/s: 6.6.1, 7.0, 7.1, 8.0
• Component/s: scripts and tools
• Labels: Java9

Environment

Windows 7

• Assignee: Uwe Schindler
• Reporter: Uwe Schindler
• Created: 18/Feb/16 11:38
• Updated: 17/May/21 21:25
• Resolved: 22/Aug/17 09:02

Description

At least on Windows, Solr 5.5 does not start with the shell script using a Verona-Java-9 JDK:

*****************************************************
JAVA_HOME = C:\Program Files\Java\jdk-9
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+105-2016-02-11-003336.javare.4433.nc)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+105-2016-02-11-003336.javare.4433.nc, mixed mode)
*****************************************************
C:\Users\Uwe Schindler\Desktop\solr-5.5.0\bin>solr start
ERROR: Java 1.7 or later is required to run Solr. Current Java version is: 9-ea

I don't know if this is better with Linux, but I assume the version parsing is broken (e.g., String#startsWith, interpret as floating point number,...)

We should fix this before Java 9 gets released! The version numbering scheme changed completely: http://openjdk.java.net/jeps/223

Issue Links

• is related to: SOLR-10184 bin/solr fails to run on java9 due to unrecognized GC logging options
• is related to: SOLR-15410 GC log is directed to console when starting Solr with Java 11 Open J9 on Windows