Fixed GitEye not booting on Ubuntu MATE 18.04

Git's GUI client uses GitEye. Some difficulty in use is a matter of familiarity. It's Eclipse-based, so it has the advantage of being cross-platform, but it sometimes causes problems. This is also the case.

After installing Ubuntu MATE 18.04, download GitEye as well. This time I downloaded GitEye-2.1.0-linux.x86_64.zip.

Since java is also required, install default-jre with apt for the time being.

sudo apt install default-jre

The package that comes in is like ʻopenjdk-11-jre`. 11？

$ java --version
openjdk 10.0.1 2018-04-17
OpenJDK Runtime Environment (build 10.0.1+10-Ubuntu-3ubuntu1)
OpenJDK 64-Bit Server VM (build 10.0.1+10-Ubuntu-3ubuntu1, mixed mode)

The one that comes in is like 10. Why is this happening?

Regain your mind, extract GitEye to an appropriate directory, and start it. die.

View the log.

!SESSION 2018-04-29 18:40:11.604 -----------------------------------------------
eclipse.buildId=unknown
java.version=10.0.1
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments:  -os linux -ws gtk -arch x86_64 -data @user.home/.giteye

!ENTRY org.eclipse.osgi 4 0 2018-04-29 18:40:16.713
!MESSAGE Application error
!STACK 1
org.eclipse.e4.core.di.InjectionException: java.lang.NoClassDefFoundError: javax/annotation/PostConstruct
        at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:410)
        at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:318)
        at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162)
        at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultHeadlessContext(E4Application.java:491)
(Omitted below)

Googling with the name of Exception or Error.

Bug 524629 - Fresh install of eclipse can't get it to work with Java 9 https://bugs.eclipse.org/bugs/show_bug.cgi?id=524629

It's about Java 9, but it's the same error.

See https://waynebeaton.wordpress.com/2017/09/25/running-eclipse-ide-on-java-9/ you need to adjust the -vmargs

Running Eclipse IDE on Java 9 https://waynebeaton.wordpress.com/2017/09/25/running-eclipse-ide-on-java-9/

... 
-vmargs
--add-modules=ALL-SYSTEM
...

Do you mean to add this?

In the case of GitEye, the equivalent of eclipse.ini is GitEye.ini.

GitEye/GitEye.ini

-startup
plugins/org.eclipse.equinox.launcher_1.4.0.v20161219-1356.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.551.v20171108-1834
-data
@user.home/.giteye
-vmargs
--add-modules=ALL-SYSTEM ← Add this line
-Xms128m
-Xmx512m
-XX:MaxPermSize=256m

Start up safely.