Creating, Signing, and Verifying JWT in Java

Abstract You use JWTs don’t you? Everyone does, right? But do you know how to generate, sign, and verify them?…

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Apache Derby Database JVM Security Policy

Abstract I have already posted a number of blogs about Derby: Derby Database Backup Multiple Derby Network Servers on the…

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Encrypt with OpenSSL, Decrypt with Java, Using OpenSSL RSA Public Private Keys

Abstract In 2017 I wrote a 3 part series on choosing the best hashing and encryption algorithms. While doing the…

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Explode a WAR File Recursively

Abstract Ever need to explode a WAR file as well as exploding all JAR files in the WAR file? Ya,…

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Discovering the Magic Version Number of .class Files

Abstract What version of Java was used to create your .class files? For your own projects, this is easy to…

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Testing Maven Release Plugin Auto-Increment Version Number

Abstract The Maven release plugin is a very powerful tool and I rely on it heavily for coordinating software releases.…

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Java Mail Sent Over TLS

Abstract The purpose of this blog is to demonstrate how to use Java Mail to send an email using an…

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Java Mail Sent Over SSL

Abstract The purpose of this blog is to demonstrate how to use Java Mail to send an email using an…

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Derby Database Backup

Abstract I have already posted a number of blogs about Derby: Multiple Derby Network Servers on the same Host Apache…

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