upon updating (very fresh install of 20.04) :package emacs-bin-common 1:26.3+1-1ubuntu2 failed to install/upgrade: installed emacs-bin-common package post-installation script subprocess returned error exit status 2

[Benjamin Olson]

seems to be generated by software updater. only additional software on my fresh install is JDK11, Eclipse, and SublimeText 3.

Description: Ubuntu 20.04.1 LTS
Release: 20.04

emacs-bin-common:
  Installed: 1:26.3+1-1ubuntu2
  Candidate: 1:26.3+1-1ubuntu2
  Version table:
 *** 1:26.3+1-1ubuntu2 500
        500 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: emacs-bin-common 1:26.3+1-1ubuntu2
ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55
Uname: Linux 5.4.0-47-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed Sep 23 16:27:34 2020
ErrorMessage: installed emacs-bin-common package post-installation script subprocess returned error exit status 2
InstallationDate: Installed on 2020-09-19 (9 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: emacs
Title: package emacs-bin-common 1:26.3+1-1ubuntu2 failed to install/upgrade: installed emacs-bin-common package post-installation script subprocess returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Glenn Morris (rgm+lp)]

From posted DpkgTerminalLog.txt:

  update-alternatives: error: cannot stat file '/usr/lib/jvm/java-15-oracle/bin/javac': Too many levels of symbolic links

Seems unrelated to Emacs...