ReceivePack: simplify getPushOptions

Checking if the instance allows push options before returning the
collection or null is a bit overkill. Just return the collection
or return null.

Change-Id: Icdc3755194373966e5819284aeb9bfe8dd34de82

org.eclipse.jgit/src/org/eclipse/jgit/transport/ReceivePack.java

@@ -96,25 +96,19 @@ public class ReceivePack extends BaseReceivePack {
 	 * Gets an unmodifiable view of the option strings associated with the push.
 	 *
 	 * @return an unmodifiable view of pushOptions, or null (if pushOptions is).
-	 * @throws IllegalStateException
-	 *             if allowPushOptions has not been set to true.
 	 * @since 4.5
 	 */
 	@Nullable
 	public List<String> getPushOptions() {
-		if (!isAllowPushOptions()) {
+		if (isAllowPushOptions() && usePushOptions) {
-			// Reading push options without a prior setAllowPushOptions(true)
+			return Collections.unmodifiableList(pushOptions);
-			// call doesn't make sense.
-			throw new IllegalStateException();
 		}
-		if (!usePushOptions) {
+
 		// The client doesn't support push options. Return null to
 		// distinguish this from the case where the client declared support
 		// for push options and sent an empty list of them.
 		return null;
 	}
-		return Collections.unmodifiableList(pushOptions);
-	}
 
 	/**
 	 * Set the push options supplied by the client.