try-with-resources gives unexpected incompatibility errors

Question

Executing javac JdbcRowSet.java on the following excerpt confuses me:

//
import javax.sql.*;
import javax.sql.rowset.*;
import java.sql.*;

class JdbcRowSet
{
    public static void main(String ... args){
        StringBuilder sb = new StringBuilder();

        try(JdbcRowSet jrs = RowSetProvider.newFactory().createJdbcRowSet()){
            //CODE
}
//

According to JavaDoc:

public interface ResultSet extends Wrapper, AutoCloseable

public interface RowSet extends ResultSet

public interface JdbcRowSet extends RowSet, Joinable

I got the following errors:

dbcRowSet.java:8:error: incompatible types: javax.sql.rowset.JdbcRowSet cannot be converted to JdbcRowSet try(//)
JdbcRowSet.java:8:error: incompatible types: try-with-resources not applicable to variable type
JdbcRowSet cannot be converted to AutoCloseable.

The errors are strangely confusing. Can someone help me on this. Thank you.

Don't use `JdbcRowSet` as the name of your class. – Kayaman Feb 05 '18 at 13:38 — Kayaman, Feb 05 '18 at 13:38

score 1 · Accepted Answer · answered Feb 05 '18 at 13:43

1

As @Kayaman correctly pointed out in his comment - you are declaring your own JdbcRowSet class.

Either change the name of the class or fully qualify the object in the try.

try(javax.sql.rowset.JdbcRowSet jrs = RowSetProvider.newFactory().createJdbcRowSet())

answered Feb 05 '18 at 13:43

OldCurmudgeon

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thanks OldCurmudgeon. i appreciated your help. ISelf study purpose only and no claim of any kind of proficiency. – 1m9K Feb 07 '18 at 18:38

try-with-resources gives unexpected incompatibility errors

1 Answers1