An error has occurred. See the log file

[SarathKumar]

In Kubuntu 18.04.3 LTS after installing Eclipse
An error has occurred. See the log file
/home/<username>/.eclipse/org.eclipse.platform_3.8_155965261/configuration/1567864182661.log

!SESSION Sat Sep 07 19:19:00 IST 2019 ------------------------------------------
!ENTRY org.eclipse.equinox.launcher 4 0 2019-09-07 19:19:00.964
!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:471)
 at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
 at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
 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)