Why alternatives path is not updating upon removal or update of java?

Issue

• Updating java does not update the alternatives link.

# rpm -q java-1.8.0-openjdk
java-1.8.0-openjdk-1.8.0.65-0.b17.el6_7.x86_64

# yum update java-1.8.0-openjdk

# ls -l /etc/alternatives/jre
lrwxrwxrwx. 1 root root 63 Mar 17 17:02 /etc/alternatives/jre -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-0.b17.el6_7.x86_64/jre

• Removing java package does not update the alternatives link, it remains stale.

root> rpm -ivh java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64.rpm 
Preparing...                ########################################### [100%]
  1:java-1.5.0-gcj         ########################################### [100%]

root> ls -lrt /etc/alternatives/java
lrwxrwxrwx. 1 root root 35 Jun 17 06:59 /etc/alternatives/java -> /usr/lib/jvm/jre-1.5.0-gcj/bin/java


root> rpm -ivh java-1.8.0-openjdk-1.8.0.20-3.b26.el6.x86_64.rpm 
Preparing...                ########################################### [100%]
  1:java-1.8.0-openjdk     ########################################### [100%]