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 ...

For Java-based programs such as Maven, Jenkins, Gradle or Tomcat to run, they need to know that Java's JDK is installed. That's the purpose of the JAVA_HOME environment variable. It tells programs ...

Every communication protocol should have a mechanism to determine whether the received data is valid. I once encountered a team that didn’t have such a mechanism. Their device operated in a ...

A basic feature of number theory, prime numbers are also a fundamental building block of computer science, from hashtables to cryptography. Everyone knows that a prime number is one that cannot be ...

To identify possible mistakes made during data entry or transmission, a checksum is a small piece of data extracted from the original data. It acts as a distinct fingerprint for data, making it ...

There are various instances of this issue that we get such as JAVAC’, JRE, ‘MVN’, JAR’ is not recognized as an internal or external command, operable program or batch file, ‘Java’ is not recognized as ...

I'm running into an issue with the module system preventing access to a private method in CRC32 Exception in thread "main" java.lang.Error: Failed to acquire method handle for private static native ...

If you’ve just downloaded a file from the Internet, you may want to verify that the downloaded file hasn’t been tampered with. After all, who knows what kind of nefarious fiddling a hacker might have ...

Java is one of those OOPs based languages, along with Python and C++, that’s in demand right now. So, if you want to ride the bandwagon and use the language, you must download it on your system. Not ...

We are often struck by how often we spend time trying to optimize something when we would be better off just picking a better algorithm. There is the old story about the mathematician Gauss who, when ...