Tags: java lombok maven

Lombok not compiling in maven

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I am trying to compile my project that uses lombok through maven and i am getting the following issue: [INFO] ———————————————————————— [INFO] Building …

How to [flat] merge Merge Multiple Arrays into List in Java

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How can I [flat] merge multiple arrays into a single List? For example: private String title[] = { “Cup Cake”, “Donut”, “Eclair”, “Froyo”, …

Is Java 8 java.util.Base64 a drop-in replacement for sun.misc.BASE64?

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Question Are the Java 8 java.util.Base64 MIME Encoder and Decoder a drop-in replacement for the unsupported, internal Java API sun.misc.BASE64Encoder and sun.misc.BASE64Decoder? EDIT (Clarification): …

Does TransactionAttributeType.NOT_SUPPORTED make sense for retrieving entities?

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Does having TransactionAttributeType.NOT_SUPPORTED on every DB lookup method makes sense? I don’t see the point in having the entity attached if it’s not going to execute an update. @…

Tags: java

Why can you have a duplicate variable name in java for a variable outside of a method?

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I am learning Java and I understand that you cannot name a variable declared within an inner scope the same name as a variable declared in an outer scope as shown below public class Practice { …

Confirmation of HTTP endpoint for SNS Subscribers

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When I create a SNS topic using cloud formation and at the same time configure a HTTP endpoint it is possible that the HTTP endpoint might not be functional at that time. So is it possible to set the …

Scheduler not running in Spring Boot

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I have created a Spring Boot application. I have configured my class that contains the scheduler method startService(). Below is my code : Service Class : package com.mk.service; import org….

Trying to learn Spring: BeanCreationException: Error creating bean with name

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Started to learn “Spring in Action” and got a trouble on the very first chapter. I have simple Spring application, built with Maven: pom.xml <project …

Tags: java

how to get Indian Time Standard from in java?

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I want to know date and time in Indian standard time and I don’t want to use my system time and date. I have never used Network Transfer Protocol (NTP) but by browsing through internet i think ntp can …

Tags: caching dao java

Understanding Dao-pattern, can it be used for retrieving data from cache?

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I read about DAO-pattern in the official documentation and it’s not quite clear if it can be used for retrieving data from cache? Formally speaking, DAO is an additional abstraction layer between …