Disable ImpossibleNullComparison

PiperOrigin-RevId: 532157602
Change-Id: Ia8b3b64b8038d367d8fcf7273ba017b5bb74ddad

toolchains/default_java_toolchain.bzl

diff --git a/toolchains/default_java_toolchain.bzl b/toolchains/default_java_toolchain.bzl
index 0d3d3d0..e57bb77 100644
--- a/toolchains/default_java_toolchain.bzl
+++ b/toolchains/default_java_toolchain.bzl
@@ -59,6 +59,7 @@
     "-Xep:EmptyTopLevelDeclaration:OFF",
     "-Xep:LenientFormatStringValidation:OFF",
     "-Xep:ReturnMissingNullable:OFF",
+    "-Xep:ImpossibleNullComparison:OFF",
 ]
 
 # Default java_toolchain parameters