RFR: Remove redundant null checks [v5]

[Maurizio Cimadamore]

On Fri, 23 Jan 2026 13:33:31 GMT, Vicente Romero <vromero at openjdk.org> wrote:

>> src/jdk.compiler/share/classes/com/sun/tools/javac/comp/NullChecksWriter.java line 213:
>> 
>>> 211: 
>>> 212:         private boolean isInThisSameCompUnit(Symbol sym) {
>>> 213:             return env.toplevel.getTypeDecls().stream()
>> 
>> Isn't this the same as `env.enclClass.sym.outermostClass() == sym.outermostClass()` ?
>
> not sure, what if there are more than one top level class in the same compilation unit?

Ah ok -- if you count aux classes, then yeah

-------------

PR Review Comment: https://git.openjdk.org/valhalla/pull/1947#discussion_r2721688010