if (thenExpression != null && elseExpression != null) {
JConditional conditional = new JConditional(sourceInfo,
JPrimitiveType.VOID, condExpr, thenExpression, elseExpression);
return conditional.makeStatement();
}
} else {
// if () { } -> ... && ...;
JExpression thenExpression = extractExpression(thenStmt);