com.intellij.jdkEx is used temporarily until JBR extension API mechanism is available in JBR.

GitOrigin-RevId: 73cb861b1d017848421d98b324fcc1e29a07ad1c

platform/platform-impl/src/com/intellij/jdkEx/DisplayModeEx.java

@@ -7,7 +7,9 @@ import org.jetbrains.annotations.NotNull;
 
 import java.awt.*;
 
-@ApiStatus.Experimental
+/**
+ * WARNING: For internal usage only.
+ */
 public interface DisplayModeEx {
   boolean isDefault(@NotNull DisplayMode dm);
 }

platform/platform-impl/src/com/intellij/jdkEx/JdkEx.java

@@ -19,9 +19,10 @@ import java.util.List;
  * Provides extensions for OpenJDK API, implemented in JetBrains JDK.
  * For OpenJDK defaults to some meaningful results where applicable or otherwise throws runtime exception.
  *
+ * WARNING: For internal usage only.
+ *
  * @author tav
  */
-@ApiStatus.Experimental
 public final class JdkEx {
   @SuppressWarnings("unused")
   @NotNull