Slight fixes around generics.

Author: laxika

java-warc/src/main/java/com/github/bottomlessarchive/warc/service/WarcRecordStreamFactory.java

@@ -68,12 +68,12 @@ public static <T extends WarcContentBlock> Stream<WarcRecord<T>> streamOf(@NotNu
         return streamOf(inputStream, charset, compressed, EVERY_WARC_RECORD_TYPE);
     }
 
+    @SuppressWarnings("unchecked")
     public static <T extends WarcContentBlock> Stream<WarcRecord<T>> streamOf(
             @NotNull @NonNull final InputStream inputStream,
             @NotNull @NonNull final Charset charset, final boolean compressed,
             @NotNull @NonNull final List<WarcRecordType> requiredRecordTypes) {
         final WarcReader warcReader = new WarcReader(inputStream, charset, compressed);
-
         return StreamSupport.stream(Spliterators.spliteratorUnknownSize(
                 new SafeWarcRecordIterator(warcReader), Spliterator.ORDERED | Spliterator.NONNULL), false)
                 .filter(warcRecord -> requiredRecordTypes.contains(warcRecord.getType()))

java-warc/src/test/java/com/github/bottomlessarchive/warc/test/TestUrlWarcReader.java

@@ -12,8 +12,8 @@ public static void main(final String... arg) throws Exception {
         final URL warcUrl = new URL(
             "https://commoncrawl.s3.amazonaws.com/crawl-data/CC-MAIN-2018-43/segments/1539583508988.18/warc/CC-MAIN-20181015080248-20181015101748-00000.warc.gz");
 
-        WarcRecordStreamFactory.streamOf(warcUrl, WarcRecordType.RESPONSE)
-            .map(entry -> ((ResponseContentBlock) entry.getContentBlock()).getPayloadAsString())
+        WarcRecordStreamFactory.<ResponseContentBlock>streamOf(warcUrl, WarcRecordType.RESPONSE)
+            .map(entry -> entry.getContentBlock().getPayloadAsString())
             .forEach(System.out::println);
     }
 }