Fixed wrong signature.

src/main/java/org/orekit/propagation/events/FieldAbstractDetector.java

@@ -69,11 +69,11 @@ public abstract class FieldAbstractDetector<D extends FieldEventDetector<T>,
     }
 
     /** {@inheritDoc} */
+    @SuppressWarnings("unchecked")
     public void init(final FieldSpacecraftState<T> s0,
-                     final FieldAbsoluteDate<T> t,
-                     final D detector) {
+                     final FieldAbsoluteDate<T> t) {
         forward = t.durationFrom(s0.getDate()).getReal() >= 0.0;
-        getHandler().init(s0, t, detector);
+        getHandler().init(s0, t, (D) this);
     }
 
     /** {@inheritDoc} */

src/test/java/org/orekit/propagation/events/FieldEventDetectorTest.java

@@ -70,8 +70,7 @@ public class FieldEventDetectorTest {
         doTestEventHandlerInit(Decimal64Field.getInstance());
     }
 
-    private <T extends CalculusFieldElement<T>> void doTestEventHandlerInit(Field<T> field)
-            {
+    private <T extends CalculusFieldElement<T>> void doTestEventHandlerInit(Field<T> field) {
 
         final T zero = field.getZero();
         final TimeScale utc = TimeScalesFactory.getUTC();