Multiple EP agent failures, some will not restart

Issue/Introduction:

After installing EP agents on Windows nodes, Some EPagents have stopped other WILL NOT restart.

EPA logs shows
2018/07/27 13:31:42 | STATUS | Java Command Line:
2018/07/27 13:31:42 | STATUS | Command: "E:\Java\jdk\bin\java" -Dcom.wily.introscope.epagent.properties="../IntroscopeEPAgent.properties" -Dfile.encoding=Cp1252 -Duser.language=en -Djava.library.path="../lib" -classpath "../lib/wrapper.jar" -Dwrapper.key="..." -Dwrapper.port=32000 -Dwrapper.jvm.port.min=31000 -Dwrapper.jvm.port.max=31999 -Dwrapper.pid=8636 -Dwrapper.version="3.5.25-st" -Dwrapper.native_library="wrapper" -Dwrapper.arch="x86" -Dwrapper.service="TRUE" -Dwrapper.cpu.timeout="10" -Dwrapper.jvmid=1 -Dwrapper.lang.domain=wrapper -Dwrapper.lang.folder=../lang org.tanukisoftware.wrapper.WrapperJarApp ../lib/EPAgent.jar
2018/07/27 13:31:42 | ERROR | JVM exited while loading the application.

Cause:

Change Java wrapper.JAVA_Home env variable

Environment:

APM 10.x

Resolution:

To solve the problem:, force the APM EPAgent java wrapper to use
set.JAVA_HOME=E:\Java\jre8

Instead of the env JAVA_HOME =

What the Logs revealed:
Looking at
https://stackoverflow.com/questions/6378579/jvm-error-for-java-service-wrapper
Your application is throwing some exception while starting up. You need to find a log of what's being thrown, or else set an catch-all exception handler for the program to print a log.

Key properties in EPAService.conf

# Enables Debug output from the Wrapper.
# wrapper.debug=TRUE -- uncomment !!
# Log Level for log file output. (See https://wrapper.tanukisoftware.com/doc/english/prop-logfile-loglevel.html
for log levels)
wrapper.logfile.loglevel=STATUS -- Set to DEBUG!!!!

The DEBUG log revealed
Launching a JVM...
2018/07/27 17:54:10 | DEBUG | Java Command Line (Query Java Version):
2018/07/27 17:54:10 | DEBUG | Command: "E:\Java\jdk\bin\java" -version
2018/07/27 17:54:10 | STATUS | Java Command Line:
2018/07/27 17:54:10 | STATUS | Command: "E:\Java\jdk\bin\java" -Dcom.wily.introscope.epagent.properties="../IntroscopeEPAgent.properties" -Dfile.encoding=Cp1252 -Duser.language=en -Djava.library.path="../lib" -classpath "../lib/wrapper.jar" -Dwrapper.key="-..." -Dwrapper.port=32000 -Dwrapper.jvm.port.min=31000 -Dwrapper.jvm.port.max=31999 -Dwrapper.debug="TRUE" -Dwrapper.pid=9580 -Dwrapper.version="3.5.25-st" -Dwrapper.native_library="wrapper" -Dwrapper.arch="x86" -Dwrapper.service="TRUE" -Dwrapper.cpu.timeout="10" -Dwrapper.jvmid=1 -Dwrapper.lang.domain=wrapper -Dwrapper.lang.folder=../lang org.tanukisoftware.wrapper.WrapperJarApp ../lib/EPAgent.jar
2018/07/27 17:54:10 | DEBUG | JVM started (PID=9348)
2018/07/27 17:54:10 | INFO | Error occurred during initialization of VM
2018/07/27 17:54:10 | INFO | java/lang/NoClassDefFoundError: java/lang/Object
2018/07/27 17:54:10 | INFO | Error occurred during initialization of VM
2018/07/27 17:54:10 | INFO | java/lang/NoClassDefFoundError: java/lang/Object
2018/07/27 17:54:11 | DEBUG | JVM process exited with a code of 1, setting the wrapper exit code to 1.
2018/07/27 17:54:11 | ERROR | JVM exited while loading the application.