If you have a third-party JAR (e.g., Jackson, Apache Commons, JDBC driver) and want to use it in a specific project:
If you imported via Method 1 (Project Properties), check "Deploy by default" inside the Library definition. how to import library into jdeveloper upd
To import a library into Oracle JDeveloper, you can either pre-defined library from JDeveloper's built-in list or manually add an external JAR file directly to your project's classpath. Method 1: Add a Library or JAR to a Project If you have a third-party JAR (e