fix: Swap writer and reader schema to correct places in sample

README.md

@@ -52,7 +52,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 If you are using Gradle 5.x or later, add this to your dependencies:
 
 ```Groovy
-implementation platform('com.google.cloud:libraries-bom:26.28.0')
+implementation platform('com.google.cloud:libraries-bom:26.29.0')
 
 implementation 'com.google.cloud:google-cloud-pubsub'
 ```

samples/snippets/src/main/java/pubsub/SubscribeWithAvroSchemaRevisionsExample.java

@@ -93,7 +93,7 @@ public static void subscribeWithAvroSchemaRevisionsExample(
               Schema schema = schemaServiceClient.getSchema(name + "@" + revision);
               org.apache.avro.Schema avroSchema =
                   new org.apache.avro.Schema.Parser().parse(schema.getDefinition());
-              reader = new SpecificDatumReader<State>(State.getClassSchema(), avroSchema);
+              reader = new SpecificDatumReader<State>(avroSchema, State.getClassSchema());
               synchronized (revisionReaders) {
                 revisionReaders.put(revision, reader);
               }