help Eclipse 2025-03 to still compile our code with Java 8;

there seem to be some issues with inferring generic type arguments in
Eclipse 2025-03, as compared to 2024-09. Minor changes regarding
explicit mention of type parameters seem to help avoid these errors.

java/com.sap.sailing.domain.persistence/src/com/sap/sailing/domain/persistence/impl/DomainObjectFactoryImpl.java

@@ -1398,7 +1398,7 @@ public class DomainObjectFactoryImpl implements DomainObjectFactory {
             final RankingMetricConstructor rankingMetricConstructor = loadRankingMetricConstructor(dbRegatta);
             String registrationLinkSecret = (String) dbRegatta.get(FieldNames.REGATTA_REGISTRATION_LINK_SECRET.name());
             if (createMigratableRegatta) {
-                result = new MigratableRegattaImpl(getRaceLogStore(), getRegattaLogStore(), name, boatClass,
+                result = new <Series> MigratableRegattaImpl(getRaceLogStore(), getRegattaLogStore(), name, boatClass,
                         canBoatsOfCompetitorsChangePerRace, competitorRegistrationType, startDate, endDate, series, /* persistent */true,
                         loadScoringScheme(dbRegatta), id, courseAreas,
                         buoyZoneRadiusInHullLengths == null ? Regatta.DEFAULT_BUOY_ZONE_RADIUS_IN_HULL_LENGTHS
@@ -1408,7 +1408,7 @@ public class DomainObjectFactoryImpl implements DomainObjectFactory {
                                 autoRestartTrackingUponCompetitorSetChange == null ? false : autoRestartTrackingUponCompetitorSetChange, rankingMetricConstructor,
                                         new MongoObjectFactoryImpl(database), registrationLinkSecret);
             } else {
-                result = new RegattaImpl(getRaceLogStore(), getRegattaLogStore(), name, boatClass,
+                result = new <Series> RegattaImpl(getRaceLogStore(), getRegattaLogStore(), name, boatClass,
                         canBoatsOfCompetitorsChangePerRace, competitorRegistrationType, startDate, endDate, series, /* persistent */true,
                         loadScoringScheme(dbRegatta), id, courseAreas,
                         buoyZoneRadiusInHullLengths == null ? Regatta.DEFAULT_BUOY_ZONE_RADIUS_IN_HULL_LENGTHS

java/com.sap.sailing.windestimation.lab/src/com/sap/sailing/windestimation/evaluation/WindEstimationEvaluatorImpl.java

@@ -100,7 +100,7 @@ public class WindEstimationEvaluatorImpl<T> implements WindEstimationEvaluator<T
                                 .mapToInt(competitorTrack -> competitorTrack.getElements().size())
                                 .sum() >= minManeuversPerRace);
         if (randomClipping) {
-            RaceWithRandomClippingPreprocessingPipelineImpl<ManeuverForEstimation, ManeuverForEstimation> clippingPipeline = new RaceWithRandomClippingPreprocessingPipelineImpl<>(
+            RaceWithRandomClippingPreprocessingPipelineImpl<ManeuverForEstimation, ManeuverForEstimation> clippingPipeline = new RaceWithRandomClippingPreprocessingPipelineImpl<ManeuverForEstimation, ManeuverForEstimation>(
                     new DummyRacePreprocessingPipelineImpl<>(), fixedNumberOfManeuvers == null ? 1 : fixedNumberOfManeuvers,
                     fixedNumberOfManeuvers == null ? Integer.MAX_VALUE : fixedNumberOfManeuvers, evaluationPerCompetitorTrack);
             preprocessingStream = preprocessingStream

java/com.sap.sailing.windestimation.lab/src/com/sap/sailing/windestimation/evaluation/WindEstimatorEvaluationRunner.java

@@ -29,7 +29,7 @@ public class WindEstimatorEvaluationRunner {
     private static final EvaluatableWindEstimationImplementation WIND_ESTIMATION_IMPLEMENTATION = EvaluatableWindEstimationImplementation.MST_HMM;
 
     public static void main(String[] args) throws Exception {
-        WindEstimationEvaluator<CompleteManeuverCurveWithEstimationData> evaluator = new WindEstimationEvaluatorImpl<>(
+        WindEstimationEvaluator<CompleteManeuverCurveWithEstimationData> evaluator = new WindEstimationEvaluatorImpl<CompleteManeuverCurveWithEstimationData>(
                 MAX_TWD_DEVIATION_DEG, MAX_TWS_DEVIATION_PERCENT, MIN_CORRECT_ESTIMATIONS_RATIO_FOR_CORRECT_RACE,
                 EVALUATE_PER_COMPETITOR_TRACK, FIXED_NUMBER_OF_MANEUVERS == null ? 1 : FIXED_NUMBER_OF_MANEUVERS,
                 RANDOM_CLIPPING_OF_COMPETITOR_TRACKS, FIXED_NUMBER_OF_MANEUVERS);

java/com.sap.sse.datamining/src/com/sap/sse/datamining/impl/components/aggregators/ParallelGroupedNumberPairAverageAggregationProcessor.java

@@ -94,7 +94,7 @@ public class ParallelGroupedNumberPairAverageAggregationProcessor
                 break;
             }
             GroupKey key = sumAggregationEntry.getKey();
-            result.put(key, new PairWithStatsImpl<Number>(new Pair<>(sumAggregationEntry.getValue().getA() != null ? sumAggregationEntry.getValue().getA().doubleValue() / elementAmountPerKey.get(key).get() : null, sumAggregationEntry.getValue().getB() != null ? sumAggregationEntry.getValue().getB().doubleValue() / elementAmountPerKey.get(key).get() : null) ,
+            result.put(key, new PairWithStatsImpl<Number>(new Pair<Number, Number>(sumAggregationEntry.getValue().getA() != null ? sumAggregationEntry.getValue().getA().doubleValue() / elementAmountPerKey.get(key).get() : null, sumAggregationEntry.getValue().getB() != null ? sumAggregationEntry.getValue().getB().doubleValue() / elementAmountPerKey.get(key).get() : null) ,
                     minPerKey.get(key), maxPerKey.get(key),
                     /* median */ null,
                     /* standardDeviation */ null,