Oracle ADF, the core framework of JDeveloper, relies heavily on internal JDK APIs that were deprecated and removed in JDK 9 and later. For example, ADF’s binding layer and the Oracle XML parser use com.sun.* and sun.* packages. These packages are no longer accessible in modular JDKs without specific command-line flags, and even with flags, stability is not guaranteed.
Download the generic installer (e.g., jdevstudio12214.jar ). Run it with: jdeveloper 12.2.1.4 java version
: While some components like Oracle Forms 12.2.1.4 may have limited support for JDK 17, JDeveloper itself remains primarily a Java 8-based IDE [ 0.5.5 ]. Key New Features Oracle ADF, the core framework of JDeveloper, relies