Avoid use of deprecated type constructors

Several instances of deprecated constructor usage such as:
return new Long(0);
return new Double(1.1);
return new Boolean(false);
Should be avoided per:

• @deprecated
• It is rarely appropriate to use this constructor. The static factory
• {@link #valueOf(boolean)}

  is generally a better choice, as it is

• likely to yield significantly better space and time performance.
• Also consider using the final fields {@link #TRUE}

  and

  {@link #FALSE}
• if possible.