Here are the three easiest ways to fix Java’s “not recognized as an internal or external command” error: Install or reinstall Java and the JDK on your computer Add Java’s bin directory to the computer ...

Fix Your security settings have blocked a self-signed or untrusted application from running error in Java, by following these solutions.

No persistence.xml file found fix The hardest part about learning Hibernate and JPA 3 is how to get your first project up and running. Some will encounter the dreaded no persistence.xml file found ...