Java

Github Action setup-gradle Saving Configuration-Cache State

by No3x on 24th January 2025 in Blog, Java • 0 Comments

In case you missed it, Gradle configuration caching is no longer enabled by default in certain scenarios. Here’s what you need to know to ensure your builds leverage this feature effectively. Important Note: To avoid potentially leaking secrets in the configuration-cache entry, the action will only save or restore configuration-cache data if the cache-encryption-key parameter is set. What is Gradle Configuration Cache?… Read more →

Gradle dependencySubstitution

by No3x on 19th July 2019 in Blog, Java, Tutorials • 0 Comments

I worked on a project that uses a framework. To add a new sub class I had to make the base class, that is part of the framework, open for extension. I was able to compile the framework on my own without the need to create a local artifact repository then create a new artifact and new version by the… Read more →

JavaFX Gluon Ignite Guice Inject Controller

by No3x on 19th November 2016 in Java • 0 Comments

I had to inject a whole controller into another controller with the guice implementation of gluon ignite. I will show an approach doing so. This is applicable if you have set the controller id in your fxml. Otherwise this snipped requires slightly modifications. I assume you have ignite already running and injecting stuff already but facing the “inject a controller… Read more →

Generate Javadoc with UML Diagrams

by No3x on 25th March 2015 in Java • 0 Comments

It is very useful to have UML Diagrams integrated into your javadoc – they give you a neat visual overview of the contents of you sourcecode. I want to show you how to integrate this into an automated build. I implemented this with an ant target and my IDE Netbeans. Add this to your build.xml in the root of your… Read more →

toString(), equals() Contract

by No3x on 6th October 2013 in Java • 0 Comments

Any Object is an Object or a child of an Object as described in the Java Language Specification: The class Object is a super class (§8.1) of all other classes. A variable of type Object can hold a reference to the null reference or to any object, whether it is an instance of a class or an array (§10). All… Read more →

For – Know the difference

by No3x on 31st July 2013 in Java • 0 Comments

I would like to write some words about the difference of the for loop behaviour. At first you should read the code and notice 2 different for usages. Both should do the same. Do they?

public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) {
        String[] blablubb = { "a", "b", "c" };
		// 1)
        for(String s : blablubb) {
            s = "over";
        }
        printArray(blablubb);

		// 2)
        for (int i = 0; i < blablubb.length; i++) {
            blablubb[i] = "over";
        }
        printArray(blablubb);

    }

    public static void printArray(String[] arr) {
        for( String s : arr ) {
            System.out.println(s);
        }
    }

}

public class Main {

/**

* @param args

public static void main(String[] args) {

String[] blablubb = { "a", "b", "c" };

// 1)

for(String s : blablubb) {

s = "over";

}

printArray(blablubb);

// 2)

for (int i = 0; i < blablubb.length; i++) {

blablubb[i] = "over";

}

printArray(blablubb);

}

public static void printArray(String[] arr) {

for( String s : arr ) {

System.out.println(s);

}

I assumed the first loop would also overwrite the string in the array – as the second one does. But it does not! –… Read more →