java.sql.SQLException: Before start of result set

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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

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java.sql.SQLException: Before start of result set
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:896)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:885)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)
at com.mysql.jdbc.ResultSetImpl.checkRowPos(ResultSetImpl.java:790)
at com.mysql.jdbc.ResultSetImpl.getStringInternal(ResultSetImpl.java:5240)
at com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5163)
at me.olivermani.sql.SQL.getDataString(SQL.java:49)
at me.olivermani.thread.Login.run(Login.java:32)
at java.lang.Thread.run(Thread.java:745)

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