'StringBuilder.append(CharArray, offset, len)' call on the JVM

Last modified: Last modified: 18 September 2025

Reports a StringBuilder.append(CharArray, offset, len) function call on the JVM platform that should be replaced with a StringBuilder.appendRange(CharArray, startIndex, endIndex) function call.

The append function behaves differently on the JVM, JS and Native platforms, so using the appendRange function is recommended.

Example:

After the quick-fix is applied: