Merge pull request #395 from avaje/fix/stream-empty

Fix JsonType.streamAsLines() for empty Stream

Author: SentryMan

blackbox-test/src/test/java/org/example/customer/stream/StreamBasicTest.java

@@ -27,7 +27,7 @@ void streamAsLines_toJsonFromJson() {
     JsonType<Stream<MyBasic>> streamType = type.streamAsLines();
 
     String asJson = streamType.toJson(basics.stream());
-    String expected = "{\"id\":1,\"name\":\"a\"}\n{\"id\":2,\"name\":\"b\"}\n{\"id\":3,\"name\":\"c\"}\n";
+    String expected = "{\"id\":1,\"name\":\"a\"}\n{\"id\":2,\"name\":\"b\"}\n{\"id\":3,\"name\":\"c\"}\n\n";
     assertThat(asJson)
       .describedAs("expect new line delimited json content")
       .isEqualTo(expected);

jsonb/src/main/java/io/avaje/jsonb/core/StreamAdapter.java

@@ -30,6 +30,7 @@ public void toJson(JsonWriter writer, Stream<T> stream) {
           elementAdapter.toJson(writer, bean);
           writer.writeNewLine();
         });
+        writer.writeNewLine();
       } else {
         writer.beginArray();
         stream.forEach(bean -> elementAdapter.toJson(writer, bean));