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Describe the bug. Trying to connect to an apache spark cluster on my local network, and it fails with 'void org.apache.thrift.transport.THttpClient.<init>(java.lang.String, ...

The Java platform includes a variety of language features and library types for dealing with exceptions, which are divergences from expected program behavior.In my previous article, you learned ...

Learn what causes null pointer exceptions in Java, how to identify them, and how to fix them with simple techniques and best practices. Also, learn how to test and learn more about them.

Null pointer exception is an “exception” (error) that is particularly common when programming in Java. For a beginner, this is a confusing and daunting message to receive, but it can be just ...

Both checked and unchecked exceptions can occur in Java. Java programs can generally recover from checked exceptions, with exception handlers written into each program to define what it should do ...

There a number of pure Java SQL database systems develolpers can embed into applications. In this tip we introduce two open source projects, HSQLDB and Apache Derby.

In this blog post, I demonstrate an advantage of being more explicit in typing when using Groovy SQL with an Oracle database to avoid a potential “Invalid column index” SQLException because I ...

How Java, JDBC and HSQLDB works. With the HSQLDB JDBC setup and configuration complete, it’s time to write a Java class that: imports java.sql.* has a main method that throws the generic Exception; ...

SQL, Python, and Java remain the most sought-after programming skills by employers, according to new research from System Design School.The study analysed job listings on Glassdoor, revealing the ...