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VNA 21.2.9 install fails - wildfly times out


Article ID: 240494


Updated On:


CA Virtual Network Assurance DX NetOps


A new install of VNA 21.2.9 exits when starting wildfly fails on time out. The install log shows the following warning

WARNING:Using java from an unsupported vendor,some functionalities of VNA may not work as expected.



Release : 21.2.9 or above

Component : Virtual Network Assurance For CA Performance Management


wildfly requires JDK 11


1. Install JDK 11

   - yum install java-11-openjdk-devel

2. Install VNA 21.2.9 or above

Additional Information

An example of steps in CentOS 8 environment:

$ yum install java-11-openjdk-devel 

$ alternatives --config java

There are 2 programs which provide 'java'.  

Selection    Command
*  1           java-1.8.0-openjdk.x86_64 (/usr/lib/jvm/java-1.8.0-openjdk-
 + 2          java-11-openjdk.x86_64 (/usr/lib/jvm/java-11-openjdk-

Enter to keep the current selection[+], or type selection number: 2

13. Upgrading VNA gotchas:

  • Make sure you know the current WildFly admin/WildFly JMS/MySQL root user password before upgrading    
  • Do NOT shut down wildfly/mysql before upgrading.

Default JDK:
  • (21.2.1 through 21.2.8) Oracle or any OpenJDK 64-bit Java 8
  • (21.2.9 and higher) Oracle or any OpenJDK 64-bit Java 11
    VNA runs on JDKs only. It does not run on IBM SDK Java or on JRE.
    Select the default JDK version of Java to use the 
    For more information, see the Red Hat documentation.
    Alternatively, create a link in the 
     directory to the Java 8/Java 11 JDK Java executable.