line numbers policy change for "multiline" expressions

[Anna Kozlova]

Hi all,

 

Sorry if it was already discussed. 

 

Expressions which span over multiple lines are compiled to different lines
and in previous versions they were all merged to the 'outer call' line. 

 

E.g. for code

 

public static void main(String[] args) {

     foo(bar1(),

              bar());

}

 

Jdk 7:

 

LINENUMBER 15 L1

    INVOKESTATIC start/LineNumbers.bar1 ()Ljava/lang/String;

    INVOKESTATIC start/LineNumbers.bar ()Ljava/lang/String;

    INVOKESTATIC start/LineNumbers.foo
(Ljava/lang/String;Ljava/lang/String;)V

 

Jdk 8:

 

  L1

    LINENUMBER 15 L1

    INVOKESTATIC start/LineNumbers.bar1 ()Ljava/lang/String;

   L2

    LINENUMBER 16 L2

    INVOKESTATIC start/LineNumbers.bar ()Ljava/lang/String;

   L3

    LINENUMBER 15 L3

    INVOKESTATIC start/LineNumbers.foo
(Ljava/lang/String;Ljava/lang/String;)V

 

Currently this breaks our debugger and it would be great to know if this
behavior won't change in the release version.

 

Thank you,

Anna