Postgres: role “postgres” does not exist
Fix FATAL: role “postgres” does not exist with Postgres.app on MacOs
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Java
Posts filed under Java, collected from the existing article archive.
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26 posts are filed in this archive. Newer articles appear first.
Fix the GradleWorkerMain OutOfMemoryException
Setting the memory size in Gradle to prevent OutOfMemoryExceptions
Read →AWS Elastic Beanstalk Environment Properties not passed for Tomcat
Deploying apps to Elastic Beanstalk can bring surprises when using newer Tomcat versions
Read →Spring Data JPA: Query result directly into DTO
One of the hidden gems of Spring Data JPA is the possibility to put your query results directly into a DTO instead of having it transformed by a mapper
Read →Java Persistence API: Creating a base entity
How to create a JPA base entity without mapping it onto a separate table
Read →Java: Default Spring Boot/Data JPA naming strategy
Default Spring Naming Strategy class and the property key to configure it in Spring Boot.
Read →Java / Maven: Add SNAPSHOT repository to pom
How to configure a Maven repository element to accept SNAPSHOT artifacts (enable snapshots, disable releases).
Read →Java: Benchmark Thymeleaf 2.1.4 vs Thymeleaf 3.0 SNAPSHOT
Benchmark results: Thymeleaf 3.0 snapshot is significantly faster than Thymeleaf 2.1.4 in this test.
Read →Java: Load file from classpath in Spring Boot
How to load files from the classpath in Spring Boot using ResourceLoader (File vs InputStream).
Read →Java: finally will always be executed
Example showing that the finally block runs before the method returns.
Read →Java: download file from URL to temp directory
Java utility to download a remote file to the system temp directory and return its path.
Read →Intellij Idea: Thymeleaf namespace unkown
Add the Thymeleaf namespace (xmlns:th) and DOCTYPE so the IDE recognizes th: attributes.
Read →Java: Spring Boot MVC Controller not called
Why controllers are not discovered and how to configure component scanning (scanBasePackages) in Spring Boot.
Read →Java / Hibernate: Random with Criteria API
Use Restrictions.sqlRestriction(“1=1 order by rand()”) as a simple workaround for random ordering in Criteria.
Read →Java: Include properties files in your Spring config
Examples of configuring Spring to load properties files singly or as a list with overriding behavior.
Read →Java / CDI: Injecting Controller into Controller
Example showing injection of SomeController into BaseController using @Inject in CDI.
Read →Java / Primefaces: Redirection with commandButton
Use p:commandButton with ajax=”false” and action=”targetPage.xhtml?faces-redirect=true” for redirection.
Read →Java: Writing your own listener for a web app
Example of implementing a ServletContextListener and configuring it in web.xml.
Read →Java: Set the Maven path in Intellij Idea
How to locate your Maven installation path and configure it in IntelliJ Idea (Maven home directory).
Read →Java: JSch SSH without known hosts check
Workaround to prevent known_hosts validation errors in JSch: set session.setConfig(“StrictHostKeyChecking”, “no”).
Read →Java: Creating Java classes from DTD file
Use xjc -dtd -d example.dtd to generate Java classes from an XML DTD.
Read →Java: Sending mails with Spring
Spring configuration for JavaMailSenderImpl and a mail utility wrapper for sending plain text emails.
Read →Java: Solve the MojoExecutionException NullPointerException with Swagger
Swagger Maven plugin error occurs when @Api is present but no @ApiOperation; add @ApiOperation to fix.
Read →Linux: Setting the admin password on Glassfish 4
How to change the admin password for Glassfish (asadmin change-admin-password) and for a specific domain.
Read →Installing Glassfish 4 on Ubuntu 12.04 LTS
Step-by-step guide to download, extract, start Glassfish 4 and add an init script for automatic startup.
Read →Installing Oracle Java 7 on Ubuntu 12.04 LTS
Install Oracle Java 7 on Ubuntu 12.04 LTS with the webupd8 PPA and apt-get.
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