Minor tweak post #4216

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/databind/deser/BasicDeserializerFactory.java

@@ -1346,11 +1346,9 @@ public JsonDeserializer<?> createArrayDeserializer(DeserializationContext ctxt,
                 config, beanDesc, elemTypeDeser, contentDeser);
         if (deser == null) {
             if (contentDeser == null) {
-                Class<?> raw = elemType.getRawClass();
                 if (elemType.isPrimitive()) {
-                    deser = PrimitiveArrayDeserializers.forType(raw);
-                }
-                if (raw == String.class) {
+                    deser = PrimitiveArrayDeserializers.forType(elemType.getRawClass());
+                } else if (elemType.hasRawClass(String.class)) {
                     deser = StringArrayDeserializer.instance;
                 }
             }

src/main/java/com/fasterxml/jackson/databind/deser/std/PrimitiveArrayDeserializers.java

@@ -99,7 +99,7 @@ public static JsonDeserializer<?> forType(Class<?> rawType)
         if (rawType == Character.TYPE) {
             return new CharDeser();
         }
-        throw new IllegalStateException();
+        throw new IllegalArgumentException("Unknown primitive array element type: "+rawType);
     }
 
     @Override