Manual installation of Jira 8.0.0 Windows service doesn't work

Issue Summary

• Manual installation of Jira 8.0.0 Windows service using service.bat doesn't work, it appears that the batch script is broken

Environment

• Windows

Steps to Reproduce

1. Perform a clean installation of Jira 8.0.0 without installing it as a service
2. Manually install the service using service.bat

   service.bat install jira

OR

1. Perform an upgrade to Jira 8.0.0 without installing it as a service
2. Manually install the service using service.bat

   service.bat install jira

Expected Results

Service successfully installed.

Actual Results

Windows service failed to install.

The error 8 was unexpected at this time. is thrown.

C:\Program Files\Atlassian\JIRATEST\bin>service.bat install jira
Neither the JAVA_HOME nor the JRE_HOME environment variable is defined
Service will use the bundled JRE.
Failing that, service will try to guess them from the registry.
Installing the service 'JIRASoftware140219193604' ...
Using CATALINA_HOME:    "C:\Program Files\Atlassian\JIRA"
Using CATALINA_BASE:    "C:\Program Files\Atlassian\JIRA"
Ignoring JAVA_HOME:        ""
Using JRE_HOME:         "C:\Program Files\Atlassian\JIRA\bin\\..\jre"
Using JVM:              "C:\Program Files\Atlassian\JIRA\bin\\..\jre\bin\server\jvm.dll"
8 was unexpected at this time.

Workaround

We have tested the below workaround on Windows Server 2016:

• Open a new Windows cmd as an Administrator
• Please go the the JIRA installation Directory eg:

  cd C:\Program Files\Atlassian\JIRA 

• Set the following windows environment variable as below:

   set JRE_HOME=.\jre 

  This is basically pointing to the JRE_HOME in this step, the path ".\jre" should be the path of the JRE and shouldn't contain spaces.
  You can also us an absoulute path like this:

  set JRE_HOME=C:\Progra~1\Atlassian\JIRA\jre
  

  The path in this case should use the 8 character form, the one without spaces.

• Once the JRE_HOME Path is set and you are still in the installation directory: C:\Program Files\Atlassian\JIRA, run the service command as below:

   .\bin\service install jira 

This should allow the service to be installed.