Public bug reported:

Steps to reproduce:
1. Have Ubuntu 16.04 LTS installed
2. Install Scilab package with simple `sudo apt-get install scilab`
3. Launch Scilab from terminal with `scilab`

Expected result:
* Scilab starts and shows GUI

Actual result:
* Scilab does not start and do not show GUI, only error message in the terminal:

$ scilab
Could not access to the Main Scilab Class:
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.scilab.modules.localization.Messages.gettext(Unknown Source)
        at org.scilab.modules.commons.xml.XConfiguration.<clinit>(Unknown 
Source)
        at org.scilab.modules.core.Scilab.<clinit>(Unknown Source)
Caused by: java.lang.NullPointerException
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1847)
        at java.lang.Runtime.loadLibrary0(Runtime.java:871)
        at java.lang.System.loadLibrary(System.java:1124)
        at org.scilab.modules.localization.MessagesJNI.<clinit>(Unknown Source)
        ... 3 more

Scilab cannot create Scilab Java Main-Class (we have not been able to
find the main Scilab class. Check if the Scilab and thirdparty packages
are available).

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: scilab 5.5.2-2ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-174.204-generic 4.4.211
Uname: Linux 4.4.0-174-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.21
Architecture: amd64
CurrentDesktop: MATE
Date: Tue Feb 18 12:25:50 2020
InstallationDate: Installed on 2019-05-07 (287 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
PackageArchitecture: all
SourcePackage: scilab
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: scilab (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1863726

Title:
  Scilab is unable to start due to "Could not access to the Main Scilab
  Class"

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