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Writing IntelliJ IDEA Plugins 1. Introduction Over the past few years, IntelliJ from JetBrains has quickly become the top IDE for Java developers. In our most recent State of Java report, IntelliJ was the IDE of choice for 55% of respondents, up from 48% the year before. One feature that… Continue Reading intellij-new-custom-plugin
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Java Web Weekly, Issue 176 Lots of interesting writeups on Java 9 this week. Here we go… 1. Spring and Java ===== >> Concurrency: Java Futures and Kotlin Coroutines [frankel.ch] A comprehensive and practical comparison of experimental Kotlin Coroutines and Java Futures. >> JCP EC Votes against the Java Platform… Continue Reading java-web-weekly-176
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Java – Read from File 1. Overview In this tutorial we’ll explore different ways to read from a File in Java; we’ll make use of BufferedReader, Scanner, StreamTokenizer, DataInputStream, SequenceInputStream and FileChannel. Then, we will discuss how to read a UTF-8 encoded file and how to create String from contents… Continue Reading java-read-file
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Spring Security for a REST API 1. Overview In this tutorial, we learn how to Secure a REST API using Spring and Spring Security 5. We will set up the security using Java configuration and will be using a Login and Cookie approach for authentication. Further reading: Spring Security Authentication… Continue Reading securing-a-restful-web-service-with-spring-security
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Different Ways to Capture Java Heap Dumps 1. Introduction In this article, we’ll show different ways to capture a heap dump in Java. A heap dump is a snapshot of all the objects that are in memory in the JVM at a certain moment. They are very useful to troubleshoot… Continue Reading java-heap-dump-capture
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How to Kill a Java Thread 1. Introduction In this brief article, we’ll cover stopping a Thread in Java – which is not that simple since the Thread.stop() method is deprecated. As explained in this update from Oracle, stop() can lead to monitored objects being corrupted. 2. Using a Flag… Continue Reading java-thread-stop
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Java Exceptions Interview Questions (+ Answers) 1. Overview Exceptions are an essential topic that every Java developer should be familiar with. This article provides answers to some of the questions that might pop up during an interview. 2. Questions ==== Q1. What Is an Exception? An exception is an abnormal… Continue Reading java-exceptions-interview-questions
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Java Weekly, Issue 238 Here we go… 1. Spring and Java ===== >> The best way to use SQL functions in JPQL or Criteria API queries with JPA and Hibernate [vladmihalcea.com] If we’re building the JPQL dynamically using Criteria API, we can still call any SQL function as long as Hibernate… Continue Reading java-weekly-238
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Tomcat Configuration In Eclipse 1. Overview One of the key challenges of web development is being able to debug effectively when running on web servers. Since building, packaging, and deploying consumes a lot of time, this might be difficult to achieve. Luckily, Eclipse allows us to start a server in… Continue Reading eclipse-tomcat
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Objects in Kotlin 1. Introduction Kotlin borrowed many ideas from other languages; one of such constructs is the object. In this quick article, we’ll see what objects are and how can be used. 2. Objects in Kotlin In Kotlin, as in almost all JVM languages, there’s the concept of a… Continue Reading kotlin-objects
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