Eclipse java.lang.OutOfMemoryError: Java heap space

In Eclipse IDE, if your program is consuming a lot of memory (loading big data) like this :

Date: 2019-08-18 View: 2244

Ant and TestNG Task example

In this tutorial, we will show you how to run a TestNG test in Ant build.

Date: 2019-08-18 View: 1465

Maven + Cobertura code coverage example

Cobertura is a free Java code coverage tool – calculates the percentage of code accessed by unit tests. In this tutorial, we will show you how to use Maven to generate the Cobertura code coverage report for your project.

Date: 2019-08-18 View: 1991

Spring Security Hello World Annotation Example

In preview post, we are using XML files to configure the Spring Security in a Spring MVC environment. In this tutorial, we are going to show you how to convert the previous XML-base Spring Security project into a pure Spring annotation project.

Date: 2019-08-18 View: 1414

Upgrading Spring version and noticed that queryForInt() is deprecated, what should be replaced by?

Date: 2019-08-18 View: 2474

Spring MVC How to include JS or CSS files in a JSP page

In this tutorial, we will show you how to include static resources like JavaScript or CSS in a JSP page.

Date: 2019-08-18 View: 1771

This article shows the difference in time taken for similar operations on a String object and StringBuffer object.

Date: 2019-08-18 View: 1410

In Spring Security, database authentication with bcrypt password hashing.

Date: 2019-08-18 View: 3986

Spring Security + Hibernate Annotation Example

In this tutorial, previous Spring Security + Hibernate4 XML example will be reused, and convert it to a annotation-based example.

Date: 2019-08-18 View: 1542

JSF 2 + Log4j Integration Example

In this tutorial, we will show you how to integrate the log4j framework with the JSF 2.x web application. JSF is using java.util.logging, you need extra works to redirect the logging from JSF’s java.util.logging to log4j, with a serious penalty of performance, make sure use this trick only during local development or debugging environment.

Date: 2019-08-18 View: 2023

Log4j Tutorial

Apache log4j, a classic logging tool in Java. Below are a series of Log4j 1.2 tutorials :

Date: 2019-08-18 View: 1313

Be default, Gradle build is abort if any unit tests is failed. Oftentimes, we still need to build the project even the unit test is failed.

Date: 2019-08-18 View: 2326

Windows 8.1, black screen with movable cursor

Here’s the scenario, morning wake up and find out my Windows 8.1 is displaying a black screen upon boot, no login screen, but a movable white cursor, random clicks will display the small loading icons?

Date: 2019-08-18 View: 1452

Review a simple Java application and log a message via Logback.

Date: 2019-08-18 View: 2711

Spring @PropertySource example

In Spring, you can use @PropertySource annotation to externalize your configuration to a properties file. In this tutorial, we will show you how to use @PropertySource to read a properties file and display the values with @Value and Environment.

Date: 2019-08-18 View: 1427