NoClassDefFoundError exception in your Maven project

After you have added a new dependency, you could have exception like this:

NetBeans error:

--- exec-maven-plugin:1.2.1:exec (default-cli) @ integration ---
java.lang.NoClassDefFoundError: path/to/the/class/ClassName
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
    at java.lang.Class.getMethod0(Class.java:3018)
    at java.lang.Class.getMethod(Class.java:1784)
    at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
Caused by: java.lang.ClassNotFoundException: package.ClassName
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 7 more

IntellijIdea error:

java syntax for catching multiple exceptions

New java syntax for catching multiple exceptions in a single section:

    try {
        // do something
    } catch (ImageProcessingException | IOException ex) {
        log.error("Unable to get orientation from file " + imagePath.toString(), ex);
    }