Eclipse and helpful plugins

I've been using Eclipse for years on Windows and around 4 months ago decided to use it on Linux so I can use PyDev instead of PyCharm for my Python development projects on Linux (PyCharm also works on both, I am just more familiar with Eclipse than Intellij so prefer to use that IDE).  Now I use PyDev on both my Linux and Windows enviroments and havent noticed a huge difference.  Once you figure out some of the quirks, using PyDev with Eclipse as my IDE has been a big time saver.

pre-reqs

• java jdk
  • define JAVA_HOME
• gradle
  • define GRADLE_HOME

Windows Install:

• Eclipse IDE for Java Developers
  
  

Debian Linux Install

• download eclipse tar.gz file
• extract it to /usr/share
• add /usr/share/eclipse to PATH
  • vim ~/.profile or ~/.bashrc
    • PATH="$PATH:/usr/share/eclipse" 
• vim /usr/share/eclipse/eclipse.ini and add
  • --launcher.GTK_version
  • 2
  • /usr/share/eclipse/eclipse.ini contents
    

    -startup  plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar --launcher.library plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.200.v20140603-1326 -product org.eclipse.epp.package.java.product --launcher.defaultAction openFile -showsplash org.eclipse.platform --launcher.XXMaxPermSize 256m --launcher.defaultAction openFile --launcher.GTK_version 2 --launcher.appendVmargs -vmargs -Dosgi.requiredJavaVersion=1.6 -XX:MaxPermSize=256m -Xms40m -Xmx512m

Plugins

to install plugins, start up Eclipse and go to (assumes Kepler or Luna versions of Eclipse):

Help -> Eclipse Marketplace ...

enter name of plugin in Finder.  below are some useful/necessary plugins

• gradle: Gradle IDE Pack
• git: EGit - Git Team Provider (comes by default with Luna)
• maven: Maven Integration for Eclipse (comes by default with Luna)
• pydev: PyDev - Python IDE for Eclipse
• testng: TestNG for Eclipse 

Issues and Workarounds

JUnit test run fails with java.lang.SecurityException...hamcrest dependency

java.lang.SecurityException: class "org.hamcrest.Matchers"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(ClassLoader.java:952)
  .
  .

https://code.google.com/p/hamcrest/issues/detail?id=128

I had same problem with Eclipse+Maven+Hamcrest combination. The hamcrest-library-1.3.jar in maven dependencies had collision with Eclipse embedded Hamcrest. I found corresponding issue on Eclipse https://bugs.eclipse.org/bugs/show_bug.cgi?id=405276, but it is still not resolved in my Eclipse Version: Luna Release (4.4.0) Build id: 20140612-0600. So I found alternative simple solution:

• • rename the file $ECLIPSE_HOME\plugins\org.hamcrest.core_1.3.0.v201303031735.jar to something like *.bak or remove the file. Eclipse ignores the embedded Hamcrest :) and Maven dependencies will be used instead.

Wonky Eclipse maven project error

eclipse An internal error occurred during: "Updating Maven Project". Could not create bundle file.

• open cmd box and cd to project dir
• > mvn eclipse:eclipse
• > mvn eclipse:clean

may need to refresh project in eclipse or delete project and reimport it.