An example of an SDK classes that make use of this feature is the TimeUnit enum (see my blog post on this). Another example is Guava’s CaseFormat enum (via its to (CaseFormat,String) method).

Although it is part of the java.util.concurrent package, the TimeUnit enum is useful in many contexts outside of concurrency .

JPA and Hibernate enum mapping The Java enum, introduced in Java 5, will map to the underlying database without any intervention. The JPA framework, be it Hibernate or Toplink or DataNucleus, will ...

To serialize and deserialize enums in Java, ensure the enum class implements the Serializable interface. Use the default serialization mechanism provided by ObjectOutputStream and ObjectInputStream.

Accessing C++ enums in Java is implemented via a Python script which analyzes the C++ enum and spits out the corresponding Java class. The enum needs to be annotated in a particular way. By default, ...

When trying to format the following class one runs into an IAE with Java < 15. package org.test; public class Test { void test() { String sealed = "a sealed test"; } } The stacktrace looks like this ...