Ensure AbstractReactiveTransactionManager compiles in Eclipse IDE

spring-tx/src/main/java/org/springframework/transaction/reactive/AbstractReactiveTransactionManager.java

@@ -439,13 +439,16 @@ public abstract class AbstractReactiveTransactionManager implements ReactiveTran
 					return Mono.empty();
 				})).then(Mono.empty().onErrorResume(ex -> {
 					Mono<Object> propagateException = Mono.error(ex);
+					// Store result in a local variable in order to appease the
+					// Eclipse compiler with regard to inferred generics.
+					Mono<Object> result = propagateException;
 					if (ErrorPredicates.UNEXPECTED_ROLLBACK.test(ex)) {
-						return triggerAfterCompletion(synchronizationManager, status, TransactionSynchronization.STATUS_ROLLED_BACK).then(propagateException);
+						result = triggerAfterCompletion(synchronizationManager, status, TransactionSynchronization.STATUS_ROLLED_BACK).then(propagateException);
 					}
-					if (ErrorPredicates.TRANSACTION_EXCEPTION.test(ex)) {
-						return triggerAfterCompletion(synchronizationManager, status, TransactionSynchronization.STATUS_UNKNOWN).then(propagateException);
+					else if (ErrorPredicates.TRANSACTION_EXCEPTION.test(ex)) {
+						result = triggerAfterCompletion(synchronizationManager, status, TransactionSynchronization.STATUS_UNKNOWN).then(propagateException);
 					}
-					if (ErrorPredicates.RUNTIME_OR_ERROR.test(ex)) {
+					else if (ErrorPredicates.RUNTIME_OR_ERROR.test(ex)) {
 						Mono<Void> mono;
 						if (!beforeCompletionInvoked.get()) {
 							mono = triggerBeforeCompletion(synchronizationManager, status);
@@ -453,10 +456,10 @@ public abstract class AbstractReactiveTransactionManager implements ReactiveTran
 						else {
 							mono = Mono.empty();
 						}
-						return mono.then(doRollbackOnCommitException(synchronizationManager, status, ex)).then(propagateException);
+						result = mono.then(doRollbackOnCommitException(synchronizationManager, status, ex)).then(propagateException);
 					}
 
-					return propagateException;
+					return result;
 				})).then(Mono.defer(() -> triggerAfterCommit(synchronizationManager, status).onErrorResume(ex ->
 						triggerAfterCompletion(synchronizationManager, status, TransactionSynchronization.STATUS_COMMITTED).then(Mono.error(ex)))
 						.then(triggerAfterCompletion(synchronizationManager, status, TransactionSynchronization.STATUS_COMMITTED))));