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Form Does Not Launch With MD5withRSA Warning After Regenerating JAR Files Using New Certificate (Doc ID 2323596.1)

Last updated on NOVEMBER 07, 2017

Applies to:

Oracle E-Business Suite Technology Stack - Version 12.1.3 and later
Information in this document applies to any platform.

Symptoms

On : 12.1.3 version, Forms for App Technology

Form does not launch with following error messages after regenerating JAR files using new certificate. It worked all right with the same steps in another instances.

security: WARNING: The following resource is signed with a weak signature algorithm MD5withRSA and is treated as unsigned:
https://<host>.<domain>:<port>/OA_JAVA/oracle/apps/fnd/jar/fndctx.jar This algorithm is now disabled by the security property:
jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024


The issue can be reproduced at will with the following steps:

1. Generate keypair and create a certificate signing request, submit it to official CA
2. Import certificates (root, intermediate and SHA1 code signing)
3. Regenerate the jar files
4. Launch EBS form from client PC

Cause

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