rm -f a.cli
cat << EOF > a.cli
try
  echo try-block
  /system-property=nonsence:read-resource()
catch
  # echo catch-block
end-try
echo after-block
EOF
./jboss-cli.sh  -c --file=a.cli

[mkopecky@dhcp-10-40-4-227 bin]$ ./jboss-cli.sh  -c --file=a.cli
try-block
{
    "outcome" => "failed",
    "failure-description" => "WFLYCTL0216: Management resource '[(\"system-property\" => \"nonsence\")]' not found",
    "rolled-back" => true
}
[mkopecky@dhcp-10-40-4-227 bin]$ 

[mkopecky@dhcp-10-40-4-227 bin]$ ./jboss-cli.sh  -c --file=a.cli
try-block
after-block
[mkopecky@dhcp-10-40-4-227 bin]$