added

new error

src/main/java/com/loafle/overflow/crawler/wmi/WMICrawlerLinux.java

@@ -77,8 +77,7 @@ public class WMICrawlerLinux extends WMICrawlerOS {
 
         String errStr = checkError(result);
         if(errStr.length() > 0) {
-//            map.put("ERROR", errStr);
-            return null;
+            throw new Exception(errStr);
         }
 
         String[] lines = result.split("\\n");

src/test/java/com/loafle/overflow/crawler/wmi/WMICrawlerTest.java

@@ -205,6 +205,31 @@ public class WMICrawlerTest {
 
 
 
+    }
+
+    @Test
+    public void testMap() {
+
+
+        Map<String, String> aa = new HashMap<>();
+
+        aa.put("111", "123123123");
+        aa.put("222", "123123123");
+
+        Map<String, String> bb = new HashMap<>();
+
+
+        bb.put("333", "123123123");
+        bb.put("444", "123123123");
+
+
+        aa.putAll(bb);
+
+        for( String key : aa.keySet() ){
+            System.out.println( String.format("key : %s ||| value : %s", key, aa.get(key)) );
+        }
+
+
     }
 
 }