remove completed TODO in ApiProxyLocalImpl

Signed-off-by: Lachlan Roberts <[email protected]>

api_dev/src/main/java/com/google/appengine/tools/development/ApiProxyLocalImpl.java

@@ -203,10 +203,12 @@ public Future<byte[]> makeAsyncCall(
     Semaphore semaphore = (Semaphore) environment.getAttributes().get(
         LocalEnvironment.API_CALL_SEMAPHORE);
     if (semaphore != null) {
-     // TODO: investigate why the acquire() locks when Sessions are configured in appengine-web.xml
-     // Maybe the semaphore has been released just before the app engine session manager starts
-     // saving the data in datastore.
-      semaphore.tryAcquire();
+      try {
+        semaphore.acquire();
+      } catch (InterruptedException ex) {
+        // We never do this, so just propagate it as a RuntimeException for now.
+        throw new RuntimeException("Interrupted while waiting on semaphore:", ex);
+      }
     }
     AsyncApiCall asyncApiCall =
         new AsyncApiCall(environment, packageName, methodName, requestBytes, semaphore);