Exception in thread "main" java.lang.NumberFormatException: Invalid integer format for value ' ' at com.mysql.cj.protocol.a.MysqlTextValueDecoder.getLong(MysqlTextValueDecoder.java:223) at com.mysql.cj.protocol.a.MysqlTextValueDecoder.getInt(MysqlTextValueDecoder.java:152) at com.mysql.cj.protocol.a.MysqlTextValueDecoder.decodeInt4(MysqlTextValueDecoder.java:105) at com.mysql.cj.protocol.result.AbstractResultsetRow.decodeAndCreateReturnValue(AbstractResultsetRow.java:105) at com.mysql.cj.protocol.result.AbstractResultsetRow.getValueFromBytes(AbstractResultsetRow.java:241) at com.mysql.cj.protocol.a.result.ByteArrayRow.getValue(ByteArrayRow.java:91) at com.mysql.cj.jdbc.result.ResultSetImpl.getObject(ResultSetImpl.java:1285) at com.mysql.cj.jdbc.result.ResultSetImpl.getInt(ResultSetImpl.java:786) at com.mysql.cj.jdbc.result.ResultSetImpl.getInt(ResultSetImpl.java:807) at ConnectorJBug100747.main(ConnectorJBug100747.java:57)