Not able to open the esr part of the SAP PI 7.3, but I was able to open id(configuration part).
Present java version: build 1.8.0_131
After getting error, I have tried to update java also
But still same error.
After spending 3 or 4 hours , discussion with other colleagues also not useful.
google searching and finding many solutions by others.
one solution helped to solve this problem ;-)
Actually, java security file(related to MD5*, stopping to lanch this file.)
As suggested by google search solution:
I have opened the java security file( with admin rights) update the file.
Note: ( we are not supposed to modify this file in general).
C:\Program Files (x86)\Java\jre1.8.0_144\lib\security java security.
# jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024