--- a/src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/ChunkHeader.java	Thu Aug 29 19:40:37 2019 +0200
+++ b/src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/ChunkHeader.java	Fri Aug 30 20:39:38 2019 +0200
@@ -52,9 +52,9 @@
     private final RecordingInput input;
     private final long id;
     private long absoluteEventStart;
-    private long chunkSize;
-    private long constantPoolPosition;
-    private long metadataPosition;
+    private long chunkSize = 0;
+    private long constantPoolPosition = 0;
+    private long metadataPosition = 0;
     private long durationNanos;
     private long absoluteChunkEnd;
     private boolean isFinished;