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EasyMock is a Java library that provides an easy way to use Mock Objects in unit testing.

You can find the website and user documentation at

Developer information

Build status

Build Status Maven Central

Environment setup

I'm using:

  • IntelliJ 2023.2.1 Ultimate (thanks to JetBrains for the license)
  • Maven 3.9.2

You can also use Eclipse. I tried

  • Eclipse 2020.12 (but there was a weird compilation issue with ASM)

To configure your local workspace:

  • Import the Maven parent project to Eclipse or IntelliJ
  • Import the Eclipse formatting file EasyMock-formatter.xml (usable in Eclipse or IntelliJ)

To build EasyMock with Maven

There are three different levels of build.

Build without any active profile

It is a basic compilation of the application.

mvn install

Full build

This build will check code coverage using Jacoco, run spotbugs and validate that the license headers are correctly set.

mvn install -PfullBuild

Deploy build

This is the build to launch to deploy to the surefire repository. It assembles the application and add the gpg checksum. You will usually launch it on top of the full build.

The command line will ask you to give the passphrase for the gpg private key.

mvn install -PdeployBuild

To compile EasyMock in Eclipse

  • Install m2e
  • Import the EasyMock Maven parent project to your Eclipse workspace

To compile EasyMock in IntelliJ

  • Import the EasyMock Maven parent project as a New IntelliJ project

To update the versions

  • mvn versions:set -DnewVersion=X.Y -Pall
  • mvn versions:commit -Pall if everything is ok, mvn versions:revert -Pall otherwise

Configure to deploy to Maven Central repository

  • You will first need to add something like this to your settings.xml
  • Then follow the instructions from the site below to create your key to sign the deployed items

To build the maven site (with spotbugs, checkstyle, jdepends and JavaNCSS reports)

  • You will to give enough memory to maven with export MAVEN_OPTS=-Xmx512m (or setting it as environment variable)
  • Then type mvn site

To check dependencies and plugins versions

mvn versions:display-dependency-updates versions:display-plugin-updates -Pall

To download the sources associated to our dependencies

mvn dependency:resolve -Dclassifier=sources

To update the license

mvn validate license:format -Pall

To upgrade the Maven wrapper

mvn wrapper:wrapper

To run Sonar

mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent test sonar:sonar


  • Install the Android SDK
  • Configure a device (real or simulated)
  • Add an ANDROID_HOME to target the Android SDK
  • Possibly put these in your path: $ANDROID_HOME/platform-tools:$ANDROID_HOME/tools/bin:$ANDROID_HOME/emulator
  • To launch an emulator from command line
    • To list the configured device: emulator -list-avds
    • To launch: emulator -avd Nexus_5X_API_28
  • Activate the debug mode if it's a real device
  • mvn install -Pandroid

To bundle EasyMock and deploy

  • Make sure the poms are on the snapshot of the version you want to deploy
  • Launch and Android emulator or connect an Android phone
  • Make sure jq is installed. If not, install it with your favorite package manager (brew install jq, choco install jq, apt-get install jq, yum install jq, etc.).
  • If gpg gives an Inappropriate ioctl for device error, enter this in your shell: export GPG_TTY=$(tty)
  • Add a little speech on the features in "" (remove the Change Log part, which will be regenerated automatically)
  • Set the gpg_passphrase as environment variables
  • Launch ./ (major|minor|patch) where the parameter tells which version number should be incremented at the end
  • During the deployment, you will be asked to do different things. Do them
  • Announce to gitter, tweet and blog ;-)

In case of a failure during the build before the deployment, do mvn versions:commit -Pall and start over.

If something was staged in Maven Central, you can drop the staging repository with mvn nexus-staging:drop.

Deploy the website

  • In local:
    • Go to the EasyMock root directory
    • Make sure the website directory is clean
    • ./

Start next version

In local:

mvn versions:set -DnewVersion=X.Z-SNAPSHOT -Pall
mvn versions:commit -Pall