Merge branch 'master' of https://github.com/youseries/ureport

ureport2-core/src/main/java/com/bstek/ureport/cache/CacheUtils.java

@@ -48,8 +48,10 @@ public class CacheUtils implements ApplicationContextAware{
 	
 	public static void storeChartDataMap(Map<String, ChartData> map){
 		String key=CHART_DATA_key;
+		if(reportCache!=null){
 		    reportCache.storeObject(key, map);
 		}
+	}
 	
 	public static Object getObject(String file){
 		if(reportCache!=null){