HHH-10281 - More formally deprecate the legacy bytecode enhancement code

(cherry picked from commit 9872358)

Author: sebersole

hibernate-core/src/main/java/org/hibernate/bytecode/buildtime/internal/JavassistInstrumenter.java

@@ -20,6 +20,7 @@
 import org.hibernate.bytecode.internal.javassist.BytecodeProviderImpl;
 import org.hibernate.bytecode.internal.javassist.FieldHandled;
 import org.hibernate.bytecode.spi.ClassTransformer;
+import org.hibernate.internal.log.DeprecationLogger;
 
 /**
  * Strategy for performing build-time instrumentation of persistent classes in order to enable
@@ -42,6 +43,7 @@ public class JavassistInstrumenter extends AbstractInstrumenter {
 	 */
 	public JavassistInstrumenter(Logger logger, Options options) {
 		super( logger, options );
+		DeprecationLogger.DEPRECATION_LOGGER.logDeprecatedBytecodeEnhancement();
 	}
 
 	@Override

hibernate-core/src/main/java/org/hibernate/internal/log/DeprecationLogger.java

@@ -200,4 +200,13 @@ void connectionProviderClassDeprecated(
 			value = "Found use of deprecated transaction factory setting [%s]; use the new TransactionCoordinatorBuilder settings [%s] instead"
 	)
 	void logDeprecatedTransactionFactorySetting(String legacySettingName, String updatedSettingName);
+
+	@LogMessage(level = WARN)
+	@Message(
+			id = 90000019,
+			value = "You are using the deprecated legacy bytecode enhancement feature which has been superseded by a vastly improved bytecode enhancer."
+	)
+	void logDeprecatedBytecodeEnhancement();
+
+
 }