javagit/src/main/java/edu/nyu/cs/javagit/api/commands/GitBranchOptions.java
public void setOptDUpper(boolean optDUpper) {
    checkCanSetDeleteOption("-D");
    if (optDLower && optDUpper) {
      throw new IllegalArgumentException(ExceptionMessageMap.getMessage("000120")
          + "  -D cannot be used with -d.");
    } 
    this.optDUpper = optDUpper;
  }
public void setOptDUpper(boolean optDUpper) {
    checkCanSetDeleteOption("-D");
    if (optDLower && optDUpper) {
      throw new IllegalArgumentException(ExceptionMessageMap.getMessage("000120")
          + "  -D cannot be used with -d.");
    } 
    this.optDUpper = optDUpper;
  }
Checks whether the -D option should be set and sets it.

@param optDUpper True if the -D option should be used, false otherwise.