Forms Application does non function anymore later on coffee upgrade to 1.8_131 on client

If Your Forms application cannot locomote started afterward a coffee upgrade to 1.8_131, delight banking concern agree this Oracle Community Thread: https://community.oracle.com/thread/4037666

In short:
Reason is: With Java 8u131, MD5-hashes are no longer accepted inward certificates
If using Forms 12c, no activeness has to locomote taken - if using Forms eleven you'll conduct maintain to utilise while 19933795

One possible workaround (not recommended!): Adapt the appropriate java.security file inward the client's coffee home:
jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
to
jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024