java.lang.NullPointerException: Cannot invoke "com.google.refine.model.Column.getPrecompute(String)" because "column" is null at com.google.refine.browsing.facets ...

Abstract: In this experience paper, we share our experience on enhancing automatic unit test generation to more effectively find Java null pointer exceptions (NPEs). NPEs are among the most common and ...

A monthly overview of things you need to know as an architect or aspiring architect. Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Senyo Simpson discusses how Rust's core ...

I am getting below Exception while connecting to PostgreSQL. Please help to fix it. I have correct values for URL. user& password. java.sql.SQLException: [Amazon]JDBC Null pointer exception. at ...

Do you know what is exception handling in Java? have you ever thought about how to exception handling in Java? Let us try to know exception handling in JavaScript & gather knowledge about exception ...

Take advantage of the null object pattern in .NET to eliminate the need for null checks and avoid runtime errors in your applications. You might often encounter null reference exceptions in your ...