add NPE check when tryGetTableNameFromTableGroupCache (#364)

Author: JackShi148

src/main/java/com/alipay/oceanbase/rpc/ObGlobal.java

@@ -113,6 +113,10 @@ public static boolean isDistributedExecSupport() {
         return OB_VERSION >= OB_VERSION_4_3_5_2;
     }
 
+    public static boolean isHBaseAdminSupport() {
+        return OB_VERSION >= OB_VERSION_4_3_5_3;
+    }
+
     public static boolean isCellTTLSupport() {
         return OB_VERSION >= OB_VERSION_4_3_5_1;
     }
@@ -131,5 +135,7 @@ public static boolean isCellTTLSupport() {
 
     public static final long OB_VERSION_4_3_5_2 = calcVersion(4, (short) 3, (byte) 5, (byte) 2);
 
+    public static final long OB_VERSION_4_3_5_3 = calcVersion(4, (short) 3, (byte) 5, (byte) 3);
+
     public static long       OB_VERSION         = calcVersion(0, (short) 0, (byte) 0, (byte) 0);
 }

src/main/java/com/alipay/oceanbase/rpc/location/model/TableRoute.java

@@ -1314,6 +1314,9 @@ private List<ObTableParam> getOdpTablesInternal(String tableName, List<String> s
      */
     public String tryGetTableNameFromTableGroupCache(final String tableGroupName,
                                                      final boolean refresh) throws Exception {
+        if (tableGroupCache == null && tableClient.isOdpMode()) {
+            throw new FeatureNotSupportedException("not supported yet in odp mode");
+        }
         return tableGroupCache.tryGetTableNameFromTableGroupCache(tableGroupName, refresh,
             serverRoster, sysUA);
     }