i am getting a java heap space issues on my server, i have minimum of 512 and maximum of 2048 in my cfadmin and here is my jvm arguments

java.args=-server  -Xms512m -Xmx2048m --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/sun.util.cldr=ALL-UNNAMED --add-opens=java.base/sun.util.locale.provider=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED -XX:+UseParallelGC -Djdk.attach.allowAttachSelf=true -Dcoldfusion.home={application.home} -Duser.language=en -Dcoldfusion.rootDir={application.home} -Dcoldfusion.libPath={application.home}/lib -Dorg.apache.coyote.USE_CUSTOM_STATUS_MSG_IN_HEADER=true -Dcoldfusion.jsafe.defaultalgo=FIPS186Random -Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.JavaUtilLog -Djava.util.logging.config.file={application.home}/lib/logging.properties -Dtika.config=tika-config.xml -Djava.locale.providers=COMPAT,SPI -Dsun.font.layoutengine=icu -Dcom.sun.media.jai.disableMediaLib=true -Dcoldfusion.datemask.useDasdayofmonth=true -Dcoldfusion.classPath={application.home}/lib/updates,{application.home}/lib/,{application.home}/gateway/lib/,{application.home}/wwwroot/WEB-INF/cfform/jars,{application.home}/bin/cf-osgicli.jar

# Comma separated list of shared library path
java.library.path={application.home}/lib,{application.home}/jintegra/bin,{application.home}/jintegra/bin/international

# Comma separated list of shared library path for non-windows
java.nixlibrary.path={application.home}/lib

java.class.path=

i aqm still confused why it ends up in heap, is there a way how i can check what is going on,

Fusion Reactor is probably going to help you here -- or the Adobe Server monitor thing? -- but 2GB doesn't sound like a particularly large heap to me for a production CF process. Even our smallest CF app server has 6GB in production I think and some of our apps used to require 8-15GB...