Eclipse/JavacHandlerUtil.injectField(...) inserts the new fields after the enum constants.

Also the new fields are ordered in the same way the method injectField() gets invoked.

test/transform/resource/after-delombok/InjectField.java

@@ -0,0 +1,59 @@
+import java.util.logging.Level;
+
+enum InjectField1 {
+	A,
+	B;
+
+	private static final java.util.logging.Logger log = java.util.logging.Logger.getLogger(InjectField1.class.getName());
+	@java.lang.SuppressWarnings("all")
+	private final java.lang.Object $lock = new java.lang.Object[0];
+	@java.lang.SuppressWarnings("all")
+	private static final java.lang.Object $LOCK = new java.lang.Object[0];
+
+	private static final String LOG_MESSAGE = "static initializer";
+
+	private String fieldA;
+
+	static {
+		log.log(Level.FINE, LOG_MESSAGE);
+	}
+
+	private String fieldB;
+
+	void generateLockField() {
+		synchronized (this.$lock) {
+			System.out.println("lock field");
+		}
+	}
+
+	static void generateStaticLockField() {
+		synchronized (InjectField1.$LOCK) {
+			System.out.println("static lock field");
+		}
+	}
+}
+
+class InjectField2 {
+	private static final java.util.logging.Logger log = java.util.logging.Logger.getLogger(InjectField2.class.getName());
+	@java.lang.SuppressWarnings("all")
+	private final java.lang.Object $lock = new java.lang.Object[0];
+
+	private static final String LOG_MESSAGE = "static initializer";
+
+	static {
+		log.log(Level.FINE, LOG_MESSAGE);
+	}
+
+	void generateLockField() {
+		synchronized (this.$lock) {
+			System.out.println("lock field");
+		}
+	}
+}
+
+class InjectField3 {
+	private static final java.util.logging.Logger log = java.util.logging.Logger.getLogger(InjectField3.class.getName());
+	static {
+		log.log(Level.FINE, "static initializer");
+	}
+}