Resultset is closeable

Former-commit-id: 988399da

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/exec/DBCResultSet.java

@@ -26,7 +26,7 @@ import org.jkiss.dbeaver.model.data.DBDValueMeta;
 /**
  * DBCResultSet
  */
-public interface DBCResultSet extends DBPObject
+public interface DBCResultSet extends DBPObject, AutoCloseable
 {
     DBCSession getSession();
 

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/impl/jdbc/struct/JDBCTableConstraint.java

@@ -197,8 +197,7 @@ public abstract class JDBCTableConstraint<TABLE extends JDBCTable>
             }
             dbStat.setLimit(0, maxResults);
             if (dbStat.executeStatement()) {
-                DBCResultSet dbResult = dbStat.openResultSet();
-                try {
+                try (DBCResultSet dbResult = dbStat.openResultSet()) {
                     List<DBDLabelValuePair> values = new ArrayList<>();
                     List<DBCAttributeMetaData> metaColumns = dbResult.getMeta().getAttributes();
                     List<DBDValueHandler> colHandlers = new ArrayList<>(metaColumns.size());
@@ -231,9 +230,6 @@ public abstract class JDBCTableConstraint<TABLE extends JDBCTable>
                     }
                     return values;
                 }
-                finally {
-                    dbResult.close();
-                }
             } else {
                 return null;
             }