TheServerSide

How a Java HashMap internal implementation works

A frequently asked question in a Java interview is: How to implement a Java HashMap? Java job seekers must fully grok this important concept if they want to ace the interview. The HashMap tutorial ...
GitHub

HashMap$Node cannot be cast to class java.util.HashMap$TreeNode

Caused by: java.lang.ClassCastException: class java.util.HashMap$Node cannot be cast to class java.util.HashMap$TreeNode (java.util.HashMap$Node and java.util.HashMap ...
InfoWorld

Intro to Micronaut: A cloud-native Java framework

Micronaut offers ahead-of-time compilation, reactive NIO, and cloud-native support for microservices and serverless development. Could it be your next Java framework? The Spring framework has long ...
TheServerSide

HashMap vs. Hashtable: Which map should you choose?

While the Hashtable was part of the initial Java release over two decades ago, the HashMap is the correct key-value store to use today. One key HashMap vs. Hashtable difference is the fact that the ...
GitHub

CTD HashMap error at RuinsMod.onEntityEnteringChunk -- may be template related

I'm seeing intermittent CTDs using MC 1.9/Forge 1.9 - 12.16.0.1816 and the logs are blaming Ruins (although it could be an intermod conflict since I have other mods) -- I have gone back and forth on ...
InfoWorld

Cannot Assume Serializability for Java Map’s Nested Classes

A colleague of mine recently ran into an issue that I have not run into myself, but found to be interesting and, in my opinion, worth blogging about here. During some distributed Java development, my ...