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Top 10 Java Performance Problems and How to Solve Them

Java is one of the most popular technologies for application development. Tens of thousands of enterprise applications are powered by Java and millions of people use them daily. Java has been evolving over many decades and there are so many web frameworks, middleware, data access technologies and protocols built on Java.

An Introduction to Java's ThreadLocal Storage

As its name suggests, a single instance of ThreadLocal can store different values for each thread independently. Therefore, the value stored in a ThreadLocal instance is specific (local) to the current running thread. Any other code logic running on the same thread will see the same value, but not the values set on the same instance by other threads. There are exceptions, though, like InhertiableThreadLocal, which inherits parent threads’ values by default.