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Tag: java

Using Spring data JPA EntityGraph with LAZY load mode for NamedAttributeNode field

I am facing with 2 problems: N + 1 query and Out Of Memory (OOM). I solved OOM by paging and lazy loading: But when I use lazy loading, N + 1 query happened. So I try to use EntityGraph as https://www.baeldung.com/spring-data-jpa-named-entity-graphs. But as my researches and local test, EntityGraph always do eager loading for NamedAttributeNode field – association field,

How I can specify the version of JDK for travis CI

I have the file .travis.yml generated by JHipster and I would like to use adopt open jdk 12 for travis, but I can not set it. Update alternative doesn’t work, I always see error: resetting java alternatives and second error update-alternatives: error: no alternatives for mozilla-javaplugin.so And jdk is always OpenJDK 11 openjdk version “11.0.2” 2019-01-15 Answer Add below matrix

Spring Boot REST API using LDAP authentication

So I’m trying to build a REST API that will use LDAP authentication. Basically, when my login endpoint is consumed, I want it to detect credentials using httpBasic authentication and then use those credentials against my LDAP server. I also want to take into account user roles, protecting endpoints so that only certain users with the proper roles can access

Deploying spring boot application to heroku – error message “No web processes running”

I created a spring boot web application (in IntelliJ IDEA), which runs locally without problems. I then built an artifact (Build -> Build Artifacts… -> my_app:jar -> Build), which created a jar file in directory “out”. I tried to deploy the app to heroku following exactly the steps described in this walkthrough by heroku: https://devcenter.heroku.com/articles/deploying-spring-boot-apps-to-heroku Note: the walkthrough does not

String to Secret key conversion/Vice Versa

I am generating a Secret Key like below : key = KeyGenerator.getInstance(ALGO_SECRET_KEY_GENERATOR).generateKey(); And I want to send this key to another activity. If I use intent I think then this need to be converted into a String from Secret key. Can anyone tell me about Secret key conversion/Vice Versa… Answer Just follow below steps. From key to string From string

How to fix this ‘ Using type org.apache.zookeeper.KeeperException.NoNodeException from an indirect dependency ‘?

The function is very simple: However when I compile it I got this error at the catch statement: error: [strict] Using type org.apache.zookeeper.KeeperException.NoNodeException from an indirect dependency The zookeeper version is 3.4.14. What is causing this error and how can I fix it? java version is openjdk 10.0.2 2018-07-17 Answer This error is actually caused by an error in the

Config Glide library for caching

How to set glide in the android project so that once images download to the app each time then displayed by the glide cache Answer Set your Glide object by providing the request options and that’s it. Glide will take care of caching for you. Happy coding with Glide “A simple and feature rich image loading library.”

Phone number breakdown (International Version) java

Given a long integer representing a 11-digit phone number, output the country code, area code, prefix, and line number using the format +1 (800) 555-1212. Ex: If the input is: 18005551212 the output is: +1 (800) 555-1212 So far, I am running program just to see how I want to go about for the rest. I have a question. After

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