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Converting Iterable to Collection in Java 1. Overview In this tutorial, we’ll explore different ways to convert an Iterable to a Collection in Java. We’ll start with plain Java solutions, then have a look at the options that the Guava and Apache Commons libraries also provide. 2. Iterable and Iterator… Continue Reading java-iterable-to-collection
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Stream Ordering in Java 1. Overview In this tutorial, we’ll dive into how different uses of the Java Stream API affect the order in which a stream generates, processes, and collects data. We’ll also look at how ordering influences performance. 2. Encounter Order Simply put, encounter order is the order in which a… Continue Reading java-stream-ordering
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The Baeldung Weekly Review 22 1. Java and Spring ===== >> Java 8 Friday: Most Internal DSLs are Outdated A interesting take on deprecating existing DSLs in favor of using Java 8 and lambdas. I think that as a language evolves and incorporates more powerful construct, it makes a lot… Continue Reading 2014-week-review-22
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The SpringJUnitConfig and SpringJUnitWebConfig Annotations in Spring 5 1. Introduction In this quick article, we’ll take a look at the new @SpringJUnitConfig and @SpringJUnitWebConfig annotations available in Spring 5. These annotations are a composition of JUnit 5 and Spring 5 annotations that make test creation easier and faster. 2. @SpringJUnitConfig… Continue Reading spring-5-junit-config
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Differences Between the Java WatchService API and the Apache Commons IO Monitor Library 1. Overview Long before the Java WatchService API was released in Java 7, Apache Commons IO Monitoring library was already addressing the same use-case of monitoring a file system location or directory for changes. In this article,… Continue Reading java-watchservice-vs-apache-commons-io-monitor-library
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Native Memory Tracking in JVM 1. Overview Ever wondered why Java applications consume much more memory than the specified amount via the well-known -Xms and -Xmx tuning flags? For a variety of reasons and possible optimizations, the JVM may allocate extra native memory. These extra allocations can eventually raise the consumed… Continue Reading native-memory-tracking-in-jvm
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Collections.emptyList() vs. New List Instance 1. Introduction In this short tutorial, we’ll illustrate the difference between Collections.emptyList() and a new list instance. 2. Immutability The core difference between java.util.Collections.emptyList() and a new list e.g. new ArrayList<>() is immutability. Collections.emptyList() returns a list (java.util.Collections.EmptyList) that can’t be modified. When creating a… Continue Reading java-collections-emptylist-new-list
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Default Password Encoder in Spring Security 5 1. Overview In Spring Security 4, it was possible to store passwords in plain text using in-memory authentication. A major overhaul of the password management process in version 5 has introduced more secure default mechanism for encoding and decoding passwords. This means that… Continue Reading spring-security-5-default-password-encoder
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Exploring SpringMVC’s Form Tag Library 1. Overview In the first article of this series we introduced the use of the form tag library and how to bind data to a controller. In this article, we’ll cover the various tags that Spring MVC provides to help us create and validate forms.… Continue Reading spring-mvc-form-tags
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A Custom Data Binder in Spring MVC 1. Overview This article will show how we can use Spring’s Data Binding mechanism in order to make our code more clear and readable by applying automatic primitives to objects conversions. By default, Spring only knows how to convert simple types. In other… Continue Reading spring-mvc-custom-data-binder
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