This screencast show you five tools to help improve and reduce bugs in your Java code!

Writing quality code takes practice. To write better code, you need to know what should improve. Code quality and what makes code easy to read are very subjective; ask five different developers, you will get six different answers. For this post, I’ll avoid most of the subjective and focus on ways to detect real issues and potential bugs.

There has been much buzz about GraalVM and what it means for the Java world. GraalVM is a Java distribution from Oracle that adds a bunch of features, most notably a new JIT compiler, polyglot capabilities, an LLVM runtime… and the ability to turn your Java application into a native binary.

How many times have you started a new job, and the first thing you see on the company intranet is a “Your connection is not private” error message? Maybe you asked around and were directed to a wiki page. Of course, you probably had to click through the security warnings before actually viewing that page. If you are security-minded, this probably bothers you, but because you have a new job to do, you accept the warning and proceed to jump through the hoops of installing the…

Security is probably the most important thing for your application, but it doesn’t have to be the hardest thing. Today I’ll show you how to use Shiro’s wildcard permissions to enable fine grained Role-Based Access Control (RBAC) which makes granting user permissions trivial (a single line). This will also make your application’s security policy more flexible, so when your business rules change (and you know they will) your code does not have to. You can read more about RBAC and Roles vs…