I have eclipse-jee-neon-3-win32-x86_64 installed on my machine and jre 8 installed. When I open eclipse and import my project I get Unbound classpath container : 'Default System Library' error in Eclipse. I went to java build path and tried doing the following steps -
right click on project >> Build Path >> Configure build path >> Add Library >> JRE System Library >> Clicked Next.
Now the page shows Workspace default JRE(Unbound) instead of JRE8.And even on clicking Installed JREs no JRE is present. Tried adding JRE path(C:\Program Files\Java\jdk1.8.0_241\jre\bin) but it says Target is not a JDK Root. Java executable was not found.