CODERU is a Java code quality tool to enforce design quality in respect to packages (and therefore modules) dependencies. The Java language is lacking a module concept. CODERU is an approach to close the gap. The approach relies on reserved package names, and the allowed dependency rules between them are expressed in a general way. It includes a Maven plugin for checking your code for rule conformance.
CERTivity is a powerful multi-platform visual tool for creating, managing, and handling different key store types (such as JKS, JCEKS, PKCS12, the Bouncy Castle types BKS and UBER, and Windows Native), public, private and secret keys in different formats (PKCS, OpenSSL, RSA/DSA, etc.), certificates (version 1 and 3), and certificates chains. It allows you to import and export keys, key pairs and certificates, manage certificate extensions, extend the validity period for self-signed certificates, test certificates, obtain revocation status, convert from one key store type to another, and much more.