search cancel

CA Virtual Network Assurance and OpenJDK


Article ID: 142376


Updated On:


CA Infrastructure Management CA Performance Management - Usage and Administration DX NetOps CA Virtual Network Assurance


When preparing to install CA Virtual Network Assurance (VNA). The documentation states:

    • "Install 64-bit Java 8 as the default JDK. Ensure that java is in the path of the install user."
  1. What is the correct 64-Bit Java OpenJDK install to use?
  2. What are the path requirements and how should they be set?


Documentation is not clear on OpenJDK Java requirements for VNA installations.


All supported Virtual Network Assurance releases


The correct Java 8 JDK to install is the java-1.8.0-openjdk-devel.x86_64 : OpenJDK Development Environment package. In most instances the following command run as root will install the required package.

  • yum install  java-1.8.0-openjdk-devel.x86_64

To set that as the default for system use by VNA we need to run the following as the root user.

  • update-alternatives --display java

With the correct JDK installed and now set as the system default, no PATH variable changes should be necessary. When VNA starts it will find the default Java on the system, the required JDK, and should function normally.