Use Yoda Conditions
I disliked this style the first time I saw a code base with yoda conditions due to the cluttered look of the expressions. It has since grown on me. Getting past opinion there is a technical problem and solution here. The problem is when working with object types in Java there is a possibility of running into null and the dredded NullPointerException. To avoid the exception adopt the yoda conditions style using literals or constants on the left side of an expression.
Boolean
if (Boolean.TRUE.equals(parameter)) {
return someValue;
}
if (Boolean.FALSE.equals(parameter)) {
return anotherValue;
}
String
if ("a literal".equals(parameter)) {
return someValue;
}