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WEBSTART: Certificate Error when JAR Files Referenced in extensions.jnlp not All Signed with Same Certificate (Doc ID 2115660.1)

Last updated on MAY 10, 2022

Applies to:

Oracle Forms - Version and later
Information in this document applies to any platform.


Added multiple signed jar files to the extensions.jnlp file from ORACLE_HOME/forms/java. When running Forms via webstart, Forms is failing with error:

Name: oracle.forms.engine.Main

ExitException: JAR resources in JNLP file are not signed by the same certificate

as per the below printscreen:




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