Logstash error "Microsystems was unexpected at this time."

[pankaj-k]

• Version: 7.6.1
• Operating System: Windows 10, ver 1709
• Config File (if you have sensitive info, please remove it):
• Sample Data:
• Steps to Reproduce:

1. Install java.

> java -version
Picked up JAVA_TOOL_OPTIONS: -Djava.vendor="Sun Microsystems Inc."
openjdk version "11.0.5" 2019-10-15
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.5+10)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.5+10, mixed mode)

2. Extract the logstash zip.
3. Open a command line window.
4. Move to bin folder and run logstash.
5. Error shown: Microsystems was unexpected at this time.

This issue is similar to 26261.

Workaround as of now to make it logstash start:
Comment out the block in setup.bat in bin folder.

rem do not let JAVA_TOOL_OPTIONS slip in (as the JVM does by default)
if not "%JAVA_TOOL_OPTIONS%" == "" (
  echo "warning: ignoring JAVA_TOOL_OPTIONS=$JAVA_TOOL_OPTIONS"
  set JAVA_TOOL_OPTIONS=
)

and add just set the env variable to empty. As below.

rem do not let JAVA_TOOL_OPTIONS slip in (as the JVM does by default)
rem if not "%JAVA_TOOL_OPTIONS%" == "" (
rem   echo "warning: ignoring JAVA_TOOL_OPTIONS=$JAVA_TOOL_OPTIONS"
rem   set JAVA_TOOL_OPTIONS=
rem )
set JAVA_TOOL_OPTIONS=

[deepankarmalhan]

Running into this same issue right now, the issue linked fixes it for elasticsearch but can I get confirmation that the fix is present in Logstash codebase as well?

[kares]

the .bat scripts could use the same work-around as Elasticsearch did