Zimbra desktop installation on my system was prompting me to upgrade the installation to the latest 7.2.7 version. I downloaded the installer (zdesktop_7_2_7_ga_b12059_20150629062326_linux_i686.tgz) from Zimbra and found that it was not working. For couple of weeks there was no discussion around this on zimbra forums too.
Looking at the logs displayed the following error:
STARTED Jetty ಸೋ ಆ 3 23:03:55 IST 2015
Error: This Java instance does not support a 32-bit JVM.
Please install the desired version.
STOPPED ಸೋ ಆ 3 23:03:55 IST 2015
This forced me to change the default java version that I’m using on my desktop to and i386 version.
$ sudo update-alternatives –config java
There are 4 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
0 /usr/lib/jvm/java-8-oracle/jre/bin/java 1077 auto mode
1 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1071 manual mode
* 2 /usr/lib/jvm/java-7-openjdk-i386/jre/bin/java 1070 manual mode
3 /usr/lib/jvm/java-8-oracle/jre/bin/java 1077 manual mode
4 /usr/lib/jvm/java-9-oracle/bin/java 1076 manual mode
Press enter to keep the current choice[*], or type selection number:
This sorted the issue with Zimbra desktop quickly.