At times we get presented with technical requirements in OIC integration that will require the use of custom developed Java classes (maybe from legacy systems, third party collaborators, cryptography needs, etc.). As easy and straight-forward the requirement sounds, its implementation may not be so, most of the times. The usually suggested way is to compile the Java classes in OCI and create functions. However, what if I tell you that there is another easier way to achieve the requirement? There is and it assumes that there is an Oracle database in picture (preferably an ATP). 1. Enable Java in your Oracle database, after which, you may have to bounce the database once. 2. Import your Java classes using the CREATE JAVA statement. More details on this statement can be known here . Please note that if a class references another class objects, then the class being referenced has to be imported first before proceeding to import the other. 3. Once you have imported and successfully com...