You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java.

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want.

We show you how to fix Object reference not set to an instance of an object error prompt which you may see in Microsoft Visual Studio.

Since Netty version 4, the life cycle of certain objects are managed by their reference counts, so that Netty can return them (or their shared resources) to an object pool (or an object allocator) as ...