If one of your web application written using Jdeveloper need to use a third party certificate to make an ssl call, then the following need to be done In this example, my ssl certificate is for oracle hcm cloud rest api call which requires ssl certificate For this we need to import the certificate to the DemmoTrust.jsk keystore file. This file will be available in Weblogic server’s lib folder. So here it is in Jdeveloper’s integrated weblogic server’s location %MIDDLEWARE_HOME%\ wlserver_10.3\server\libs To import the certificate to the desired keystore we need to use ‘keytool’ available in jdk. The command is below: keytool -importcert -noprompt -trustcacerts -alias YOUR_FILE_NAME_LABEL -file PATH_TO_THE_CERT_FILE_YOU_DOWNLOADED -keystore PATH_TO_THE_JDEVELOPER_KEYSTORE -storepass DemoTrustKeyStorePassPhrase EX: keytool -importcert -noprompt -trustcacerts -alias hcm-aufsn4x0epa-cert -file "C:\certs\hcm-aufsn4x0epa.oracleoutsourcing.com.crt" -keystore ...