sanity check

git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@34 0924bc21-9374-b0fa-ee44-9ff1593b38f0
This commit is contained in:
andreas.schildbach 2010-07-28 18:05:41 +00:00
parent 8ea4f316bb
commit 2b76ff857a

View file

@ -106,7 +106,9 @@ public final class NetworkProviderFactory
public static String networkId(final NetworkProvider provider) public static String networkId(final NetworkProvider provider)
{ {
if (provider instanceof VbbProvider) if (provider == null)
throw new IllegalArgumentException("null provider");
else if (provider instanceof VbbProvider)
return VbbProvider.NETWORK_ID; return VbbProvider.NETWORK_ID;
else if (provider instanceof RmvProvider) else if (provider instanceof RmvProvider)
return RmvProvider.NETWORK_ID; return RmvProvider.NETWORK_ID;