Maven + Emma code coverage example

Emma is a free Java code coverage tool. In this tutorial, we will show you how to use Maven to generate the Emma code coverage report for your project, and also how to integrate the Emma report into the Maven project site.

Date: 2019-08-17 View: 2682

MongoDB Aggregate and Group example

In this tutorial, we will show you how to use MongoDB aggregate function to group documents (data).

Date: 2019-08-17 View: 2022

Spring 3.2.x + Hibernate 4.3.x integration, hits JtaPlatform ClassNotFoundException, search the project classpath, find out that JtaPlatform is at different package?

Date: 2019-08-17 View: 2451

Spring Security + Hibernate XML Example

In this tutorial, we will show you how to integrate Hibernate 4 in Spring Security, XML configuration example.

Date: 2019-08-17 View: 2243

log4j.xml Example

Here’s an XML version of log4j properties file, just for sharing.

Date: 2019-08-17 View: 1984

Deployed a Debian 7.5 on Linode server, the default is using OpenJDK 1.6. How to upgrade to OpenJDK 1.7?

Date: 2019-08-17 View: 1990

Normally, you use Secure copy or SCP to download a file from another server via SSH connection. For example,

Date: 2019-08-17 View: 2120

Log4j hello world example

In this tutorial, we will show you how to use the classic log4j 1.2.x to log a debug or error message in a Java application.

Date: 2019-08-17 View: 2035

Deployed a “war” file on Tomcat, and hits following error messages :

Date: 2019-08-17 View: 2036

Run a “jar” on Debian 7.5, and hits the following error messages :

Date: 2019-08-17 View: 2054

A collection with NumberLong type data as follows :

Date: 2019-08-17 View: 1871

On Linux, gzip is unable to compress a folder, it used to compress a single file only. To compress a folder, you should use tar + gzip, which is tar -z.

Date: 2019-08-17 View: 1989

Dual boot Windows and Ubuntu, but Ubuntu is unable to access the Windows partition /dev/sdb3, shows the following error message :

Date: 2019-08-17 View: 2570

This article shows you 2 ways to export a MongoDB “aggregation” result into another new collection.

Date: 2019-08-17 View: 1786

Find out Tomcat is using which JDK or JAVA_HOME

In this article, we will show you how to find out which JRE / JDK or JAVA_HOME is used by the Tomcat container.

Date: 2019-08-17 View: 2025