Java version

Arif Butt

Member
Hi there,

We have an offline license of WCS installed with java version "1.8.0_161" and it was running OK, but somehow an update was run and updated the java to
java version "1.8.0_282" and now the WCS page is not appearing although it is showing that the service is running but no listening ports are shown with netstat command.

Before it was showing
tcp 0 0 0.0.0.0:8444 0.0.0.0:* LISTEN 21207/java


Please let us know if we can uninstall java version "1.8.0_282" and reinstall downgraded java version "1.8.0_161" while WCS is installed, will it have any impact on the installed offline License? OR should we remove the License first and then reinstall Java version "1.8.0_161"

Kindly assist on how to fix this.

Thanks
AB
 

Max

Administrator
Staff member
Good day.
Please let us know if we can uninstall java version "1.8.0_282" and reinstall downgraded java version "1.8.0_161" while WCS is installed, will it have any impact on the installed offline License? OR should we remove the License first and then reinstall Java version "1.8.0_161"
No. Any Java version changing should not affect WCS license at all. You can downgrade JDK if needed.
 

Arif Butt

Member
Hi there

After downgrading the Java version the situation remains the same, the service shows its running but the ports are not listed in the netstat command and the web page is not appearing on port 8444, please see the attached pics for your review, kindly assist how to proceed

Thnx
 

Attachments

Max

Administrator
Staff member
Try to launch server in standalone mode. Perhaps some Java options are not supported.

Code:
cd /usr/local/FlashphonerWebCallServer/bin
./webcallserver start standalone
Please copy output log and past it here. We will check. Make sure it does not contain secure data like license codes.
 

Max

Administrator
Staff member
After downgrading the Java version the situation remains the same, the service shows its running but the ports are not listed in the netstat command and the web page is not appearing on port 8444, please see the attached pics for your review, kindly assist how to proceed
According to screenshots, you are using JDK 15, not JDK 8 as you mentioned above
1635902017783.png

Please update Java options as described here, or update WCS to latest build. Since build 5.2.972, Java version is detected automatically, and JVM parameters are corrected when WCS is starting after JDK update.
 
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