Duplicated delimiters in 'StringTokenizer'

Reports StringTokenizer() constructor calls or nextToken() method calls that contain duplicate characters in the delimiter argument.

Example:

void printTokens(String text) {
  StringTokenizer tokenizer = new StringTokenizer(text, "\n\n");
  while (tokenizer.hasMoreTokens()) {
    System.out.println(tokenizer.nextToken());
  }
}

After the quick-fix is applied:

void printTokens(String text) {
  StringTokenizer tokenizer = new StringTokenizer(text, "\n");
  while (tokenizer.hasMoreTokens()) {
    System.out.println(tokenizer.nextToken());
  }
}

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Java, 233.SNAPSHOT

Last modified: 13 July 2023