Explore various ways to check the existence of a collection using the MongoDatabase and DB class methods.
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baeldung
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Retrieve Original Message From Feign ErrorDecoder
Filed under REST
Learn to retrieve the original message from Feign ErrorDecoder.
Update Documents in MongoDB
Filed under NoSQL
Explore various ways to update the documents in MongoDB.
Does GC Release Back Memory to OS?
Filed under JVM
Learn how Java Garbage Collection works.
Java Weekly, Issue 427
Filed under Weekly Review
It’s all about the future: Java 18 & 19, Hibernate 6 features, Groovy 4, Kotlin 1.6.2, permitted sealed classes, and API evolution.
Update Multiple Fields in a MongoDB Document
Filed under NoSQL
Explore various ways to update multiple fields of a document in MongoDB.
How to Create a New Entry in a Map
Filed under Java Map
Learn how to use Java’s built-in classes, third-party libraries, and a custom implementation to create an Entry object in a Map.
A Guide to Maven Artifact Classifiers
Filed under Maven
Learn about artifact classifiers in Maven and understand the various scenarios where they are useful.
Java Weekly, Issue 426
Filed under Weekly Review
Spring Data 3.0, avoiding stringly typed Kotlin, ID generation in JPA, dockershim removal, and quantum computing.