I also encounter this problem: here is the log created when i failed to start eclipse:
!SESSION Sun Mar 31 15:24:01 ICT 2019 ------------------------------------------ !ENTRY org.eclipse.equinox.launcher 4 0 2019-03-31 15:24:01.437 !MESSAGE Exception launching the Eclipse Platform: !STACK java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:466) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:566) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:626) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584) at org.eclipse.equinox.launcher.Main.run(Main.java:1438) at org.eclipse.equinox.launcher.Main.main(Main.java:1414) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754886 Title: Eclipse fails to start (java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/eclipse/+bug/1754886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs