Why to use @AllArgsConstructor and @NoArgsConstructor together over an Entity?

The JPA specification requires that all persistent classes (@Entity) have a no-arg constructor, public or protected. (note that this is not necessarily true when dealing with some implementation like Hibernate, see this answer). This is needed because JPA uses the default constructor method to create a bean class using the reflection API. Indeed if your … Read more

Eclipse 2021-06: ClassFormatError accessible: module java.base does not “opens java.lang” to unnamed module

Thanks, @howlger it was Lombok plug-in when using JDK 16. That tweet gave me the reasons: https://github.com/projectlombok/lombok/issues/2810 A workaround : Use Java 15 to start Eclipse or add –illegal-access=warn and –add-opens=java.base/java.lang=ALL-UNNAMED to your eclipse.ini or install a pre-built version (1.18.21) In my situation I had to change eclipse.ini VM path: -vm C:\bin\jdk-15.0.2\bin

Application of @Sneaky Throws in lombok

To add to the existing answers. I personally dislike checked exceptions. See for more info: https://phauer.com/2015/checked-exceptions-are-evil/ To add insult to injury, the code gets bloated when avoiding the checked exceptions. Consider the usage of @SneakyThrows: List<Instant> instantsSneaky = List.of(“2020-09-28T12:30:08.797481Z”) .stream() .map(Example::parseSneaky) .collect(Collectors.toList()); @SneakyThrows private static Instant parseSneaky(String queryValue) { return new SimpleDateFormat(“yyyy-MM-dd’T’HH:mm:ss.SSS’Z'”).parse(queryValue).toInstant(); } versus non-@SneakyThrows … Read more

How can I generate both standard accessors and fluent accessors with lombok?

Unfortunately this is impossible. You need to implement own getters and setters, and add @Getter @Setter and @Accessors(fluent = true) annotaions to achieve this. @Getter @Setter @Accessors(fluent = true) public class SampleClass { private int id; public int getId() { return id; } public void setId(int id) { this.id = id; } } In result … Read more

In Lombok, what is the difference between @AllArgsConstructor and @RequiredArgsConstructor?

In short, use @AllArgsConstructor to generate a constructor for all of your class’s fields and use @RequiredArgsConstructor to generate a constructor for all class’s fields that are marked as final. From the documentation, @AllArgsConstructor generates a constructor with 1 parameter for each field in your class. @RequiredArgsConstructor generates a constructor with 1 parameter for each … Read more

Excluding Lombok classes from Sonar coverage report

As mentionned here : https://github.com/jacoco/jacoco/pull/513#issuecomment-293176354 filtering is performed at a time of report generation (creation of html, xml, etc), not at a time of collection of execution information (creation of exec file). So that tools that read execution data directly instead of reading of xml (which is a kind of mistake on their side to … Read more

Lombok not working in eclipse mars

I had the same problem. What helped was: Restart Eclipse Select from top menu Project -> Clean… Clean all projects that use Lombok If it will not help, try again from point 1. (I know it sounds stupid but it worked on my PC on second try.) Also, I’m using Lombok version 1.16.4 (and Eclipse … Read more

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