java.sql.SQLException

Operation not allowed after ResultSet closed

Samebug tips1

MySQL doesn't support some types of characters (such as emojis) with the utf8 encoding. You need to be on MySQL 5.5+ and force utf8mb4 (everywhere, client and server). You can do this sending the query "SET NAMES utf8mb4". Check this https://goo.gl/3E2qzg


rafaelrafael

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  • via Stack Overflow by Tom Lima
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  • Stack trace

    • java.sql.SQLException: Operation not allowed after ResultSet closed at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929) at com.mysql.jdbc.ResultSetImpl.checkClosed(ResultSetImpl.java:795) at com.mysql.jdbc.ResultSetImpl.checkRowPos(ResultSetImpl.java:839) at com.mysql.jdbc.ResultSetImpl.getStringInternal(ResultSetImpl.java:5657) at com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5577) at dbclass.MainApp.main(MainApp.java:16)

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