When I press enter at the begining of an indented line, that is after the 4
spaces but before the code itself, for example:

    |System.out.println( "Hello World" )
    ^
then the IDE will insert a new line but also keep the indentation.

However, If the code begins will two backward slashes, //, then the IDE doesn't
keep the indentation.
{
    |//this is a single lined coment
}    
becomes:
{
    
//this is a single lined coment
}

when it should be:
{
    
    //this is a single lined coment
}