After 'snap install eclipse --classic' Eclipse does not start (missed Java)

[Norbert]

Steps to reproduce:
1. Install Ubuntu 18.40 LTS (or 16.04 LTS)
2. Refresh snaps:

$ snap refresh

3. Find Eclipse snap

$ snap find eclipse
Name Version Developer Notes Summary
eclipse 4.7.3a snapcrafters classic Extensible Tool Platform and Java IDE
mosquitto 1.5 ralight - Eclipse Mosquitto MQTT broker

4. Install classic Eclipse snap

$ snap install eclipse --classic

5. Run Eclipse from terminal

$ which eclipse
/snap/bin/eclipse

$ eclipse

Expected results:
Eclipse is started and usable.

Actual results:
Eclipse does not start (see screenshot, complains about missed Java)

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: snapd 2.32.5+18.04
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
CurrentDesktop: MATE
Date: Wed Jun 6 22:09:53 2018
InstallationDate: Installed on 2018-04-26 (40 days ago)
InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: snapd
UpgradeStatus: No upgrade log present (probably fresh install)

[Norbert (nrbrtx)]

Manual installation of default-jre (`sudo apt-get install default-jre`) helps, but it is inexpected. Snaps should not have dependency hell inside the technology...

[John Lenton (chipaca)]

This is not a bug in snapd, but in the snap itself. It _is_ a rather ugly bug in this snap, but please report it to the snap publisher.