In this chapter, we learned how to use the StackWalker API and examined sample code snippets to strengthen our understanding. Our detailed review of the API included different usage scenarios, options, and information. We explored the API's complexity and shared how and how not to use the class. We closed with some related performance issues that developers should be aware of.

In our next chapter, we will cover over a dozen tools and tool enhancements relevant to the modern Java platform. The featured changes will cover a wide range of tools and updates to APIs that are aimed at making developing with Java easier and the ability to create optimized Java applications. We will look at the new HTTP client, changes to the Javadoc and Doclet API, the new JavaScript parser, JAR and JRE changes, the new Java-level JVM compiler interface, support for TIFF images, platform logging, XML catalog support, collections, new platform-specific desktop features, enhancements to method handling, and the depreciation annotation.