Unable to parse date which is missing minutes?

I am trying to parse a date-time string that does not contain minutes 2019-10-12T07Z.

import java.time.OffsetDateTime;
import java.time.format.DateTimeFormatter;

public class App 
{
    public static void main( String[] args )
    {

        // 2019-10-12T07:00:00Z
    OffsetDateTime offSetDateTime = OffsetDateTime.parse("2019-10-12T07Z");
    System.out.println(offSetDateTime.format(DateTimeFormatter.ISO_DATE_TIME));
    
    }
}

When I run the above code, it throws the following exception stack trace

Exception in thread "main" java.time.format.DateTimeParseException: Text '2019-10-12T07Z' could not be parsed at index 13
    at java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:1949)
    at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1851)
    at java.time.OffsetDateTime.parse(OffsetDateTime.java:402)
    at java.time.OffsetDateTime.parse(OffsetDateTime.java:387)
    at com.test.offset.offset.App.main(App.java:16)

Expected output

2019-10-12T07:00:00Z

Any idea what I should do?

Answer

You have to create custom DateTimeFormatter representing the time and offset.

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HHX");
OffsetDateTime odt = OffsetDateTime.parse("2019-10-12T07Z",formatter) ;

System.out.println( odt );  //2019-10-12T07:00Z

See that code run at Ideone.com.

2019-10-12T07:00Z

If you want to display the seconds, extract an Instant to use its toString method.

Instant instant = odt.toInstant() ;
System.out.println( instant ) ;  // 2019-10-12T07:00:00Z

2019-10-12T07:00:00Z