Here’s a draft of a help topic or guide on importing a library into JDeveloper (specifically for 12c or later, but adaptable to earlier versions):
If your project uses Maven, it is better to manage dependencies through the pom.xml file rather than manual JAR imports. how to import library into jdeveloper upd
Step 3: Add the JAR
ClassNotFoundException: This often happens if the library is added to the "Project Properties" but the Deployed by Default option is unchecked. Here’s a draft of a help topic or
Unlike Eclipse or IntelliJ, JDeveloper works with Library Classpaths and ADF Libraries. If you simply drop a JAR into your folder, it might compile but fail at runtime. how to import library into jdeveloper upd