Java class - 275 bytes - no arguments

[yo-yo-yo-jbo]

Please fill out the following:

---BEGIN BGGPx---
Submit Date: 2024-06-29
BGGP Challenge Number: 5
Author: Jonathan Bar Or ("JBO")
Contact Info (Optional): @yo_yo_yo_jbo
Online Presence (Website/Social Media): @yo_yo_yo_jbo 
Target File Type: class (Java class)
File Size: 275
SHA256 Hash: ee29b5a944c0d0db9cc3b420991340a64617ded0d840715c4c67df230172b182
Target Environment (How do we run the file?): file must be called "Code.class", please run "java Code" and wait a few seconds (even after the program finishes - it forks). Also, relies on "curl" and "bash" - so run in macOS or Linux.
Any additional info?: 
Link to PoC video, screenshot, or console output, if any: 
Link to writeup, if any: https://github.com/yo-yo-yo-jbo/bggp5_java_editing
File contents (base64 encoded please): yv66vgAAADcAEQoACAAJCAAKCgAIAAsHAAUBAARDb2RlAQAEbWFpbgEAFihbTGphdmEvbGFuZy9TdHJpbmc7KVYHAAwMAA0ADgEAJ2Jhc2ggLWMgY3VybCR7SUZTfS1MJHtJRlN9N2YudWs+L2QqL3R0eQwADwAQAQARamF2YS9sYW5nL1J1bnRpbWUBAApnZXRSdW50aW1lAQAVKClMamF2YS9sYW5nL1J1bnRpbWU7AQAEZXhlYwEAJyhMamF2YS9sYW5nL1N0cmluZzspTGphdmEvbGFuZy9Qcm9jZXNzOwQhAAQACAAAAAAAAQAJAAYABwABAAUAAAAVAAIAAQAAAAm4AAESArYAA7EAAAAAAAA=
---END BGGPx---

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[yo-yo-yo-jbo]

Fixed to use ${IFS} instead of substring, credits to Gynvael