Not possible to have @ProtoField of type List<byte[]> ----------------------------------------------------- Key: IPROTO-103 URL: https://issues.jboss.org/browse/IPROTO-103 Project: Infinispan ProtoStream Issue Type: Bug Affects Versions: 4.3.0.Alpha8 Reporter: Ryan Emerson Assignee: Nistor Adrian Priority: Major Fix For: 4.3.0.Alpha9 {code:java} static final class ExpiryBucket { @ProtoField(number = 1, collectionImplementation = ArrayList.class) List<byte[]> entries; ExpiryBucket() {} ExpiryBucket(byte[]... entries) { this.entries = Arrays.asList(entries); } } {code} Error: {code:java} PersistenceContextInitializer.java:[19,1] org.infinispan.protostream.annotations.ProtoSchemaBuilderException: The class byte[] must be instantiable using an accessible no-argument constructor. {code}