madrob commented on a change in pull request #207:
URL: https://github.com/apache/solr/pull/207#discussion_r666532753



##########
File path: 
solr/core/src/java/org/apache/solr/handler/admin/BaseHandlerApiSupport.java
##########
@@ -159,9 +159,7 @@ private Object getParams0(String param) {
             if (o == null) o = pathValues.get(param);
             if (o == null && useRequestParams) o = origParams.getParams(param);
             if (o instanceof List) {
-              @SuppressWarnings({"rawtypes"})
-              List l = (List) o;
-              return l.toArray(new String[l.size()]);
+              return ((List<?>) o).toArray();

Review comment:
       You're right, we need to use the toArray overload that accepts a type 
argument.




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