Mostly migrate off jsr305.

- Mostly migrate to Checker Framework declaration annotations.
- Migrate @GuardedBy to a custom annotation for now. (We would migrate to Error Prone's, but that's causing me problems as I experiment with JPMS.)

Compare to b/69411537 for Guava.

I've left @ParametersAreNonnullByDefault in place for now, but we'd need to remove it to fully eliminate the jsr305 dep.

RELNOTES=Migrated from jsr305 `@Nullable` to Checker Framework `@NullableDecl`. In addition to the new dependency on the Checker Framework annotations, we keep the dependency on jsr305 for now so that we can keep using `@ParametersAreNonNullByDefault`.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=272713254

1 files changed, 5 insertions, 0 deletions

diff --git a/pom.xml b/pom.xml
index 6c0187b..32e13bc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -117,6 +117,11 @@
         <artifactId>jsr305</artifactId>
         <version>3.0.2</version>
       </dependency>
+      <dependency>
+        <groupId>org.checkerframework</groupId>
+        <artifactId>checker-compat-qual</artifactId>
+        <version>2.5.5</version>
+      </dependency>
 
       <!-- Test dependencies -->
       <dependency>