fix Java warning

1 files changed, 7 insertions, 4 deletions

diff --git a/main/src/cgeo/geocaching/connector/oc/OkapiClient.java b/main/src/cgeo/geocaching/connector/oc/OkapiClient.java
index 8bbbf18..5e438cb 100644
--- a/main/src/cgeo/geocaching/connector/oc/OkapiClient.java
+++ b/main/src/cgeo/geocaching/connector/oc/OkapiClient.java
@@ -297,11 +297,14 @@ final class OkapiClient {
             final JSONObject cachesResponse = response.getJSONObject("results");
             if (cachesResponse != null) {
                 final List<Geocache> caches = new ArrayList<Geocache>(cachesResponse.length());
-                final Iterator<String> keys = cachesResponse.keys();
+                final Iterator<?> keys = cachesResponse.keys();
                 while (keys.hasNext()) {
-                    final String key = keys.next();
-                    final Geocache cache = parseSmallCache(cachesResponse.getJSONObject(key));
-                    caches.add(cache);
+                    final Object next = keys.next();
+                    if (next instanceof String) {
+                        final String key = (String) next;
+                        final Geocache cache = parseSmallCache(cachesResponse.getJSONObject(key));
+                        caches.add(cache);
+                    }
                 }
                 return caches;
             }