com.apollographql.apollo.exception.JsonDataException: Expected BEGIN_OBJECT but was NULL

[sonatard]

After making the following change, the error below occurred:

-    val apolloNormalizedCacheIncubating = "0.0.4"
-    implementation("com.apollographql.cache:normalized-cache-incubating:$apolloNormalizedCacheIncubating")
+    val apolloNormalizedCache = "1.0.0-alpha.2"
+    implementation("com.apollographql.cache:normalized-cache:$apolloNormalizedCache")

com.apollographql.apollo.exception.JsonDataException: Expected BEGIN_OBJECT but was NULL at path data.viewer.application.mobileApp

• extensions.xxx.graphqls:

extend type Application @nonnull(fields: "mobileApp")

• build.gradle.kts:

schemaFiles.from("src/main/java/com/xxx/android/xxx.graphqls", "src/main/java/com/xxx/android/extensions.xxx.graphqls")

According to our server logs, data.viewer.application.mobileApp is not null.

Has there been a specification change regarding the @nonnull directive?

[martinbonnin]

@nonnull is generally considered deprecated (replaced by @semanticNonNull) but it's not really related to the cache so this error is a bit weird. Maybe the cache has a transitive dependency that bumped something else? Might be worth checking if apollo-api or apollo-gradle-plugin were upgraded.

If not, is there any chance you can share a reproducer? That'd help a ton investigating those.