bug6241: detach retype-and-store callback onto its own thread

The Runnable passed to runWhenWindEstimationInstalled(...) fires
synchronously on whichever thread first invokes setWindEstimation with
a non-null argument. That thread is typically a shared
background-executor thread (the same pool used by SmartFutureCache and
the wind estimator's GraphRecalculationTask). Running waitUntilDone,
recalculate(...), and get(waitForLatest=true) on that thread makes the
callback block waiting for tasks that need the same pool to progress,
which starves the pool -- fatal with pool size 1, and observed as
timeout retries on saturated pools in local runs.

Detach the callback body onto a dedicated Thread so the setWindEstimation
caller returns immediately and the shared pool stays free to service the
tasks the retype-and-store step is waiting on.

java/com.sap.sailing.domain/src/com/sap/sailing/domain/maneuverhash/impl/ManeuverCacheDelegate.java

@@ -162,8 +162,16 @@ public class ManeuverCacheDelegate implements SerializableManeuverCache {
             // fires synchronously here if the estimator was installed while we were computing;
             // otherwise it registers a callback that fires once setWindEstimation is called with
             // a non-null argument, and cancels silently if the race is removed before that
-            // happens. See bug6241 for the rationale.
-            race.runWhenWindEstimationInstalled(this::retypeAndStoreAfterWindEstimationSettled);
+            // happens. Because the setWindEstimation call typically happens on a shared
+            // background-executor thread and the follow-up work (waitUntilDone, recalculate,
+            // get(waitForLatest=true)) then blocks waiting for other tasks on the *same* shared
+            // pool, running it on the setWindEstimation caller's thread risks starving the pool
+            // (fatal with pool size 1). Detach onto a dedicated thread so the caller of
+            // setWindEstimation returns immediately. See bug6241 for the rationale.
+            race.runWhenWindEstimationInstalled(() ->
+                    new Thread(this::retypeAndStoreAfterWindEstimationSettled,
+                            "Retyping and storing maneuvers after wind estimation for "+race.getName())
+                            .start());
         }
     }