java - Reading a file using utf-8 that is encoded in utf-8 doesn't work, but reading the same file using "windows-1252" or "iso-8859-1" does - Stack Overflow
Character Encoding
How to Convert Java String to Byte Array, Byte to String
Java: List the available character sets in charset objects
Error on Android Device: java.lang.NullPointerException: Attempt to invoke virtual method 'byte[] java.lang.String.getBytes(java.nio.charset.Charset)' on a null object reference · Issue #18 · zaguiini/react-native-pure-jwt · GitHub
In Java How to Read a File and Convert File to String? (5 different ways) • Crunchify