AVRO-1823: Java: Do not swallow IOException while reading magic bytes…

…. Contributed by Koji Noguchi.
mrosales · Apr 16, 2016 · f4f2263 · f4f2263
1 parent 58daaf0
commit f4f2263
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diff --git a/CHANGES.txt b/CHANGES.txt
@@ -19,6 +19,9 @@ Trunk (not yet released)
 
     AVRO-1701: Fix for "warning: comparison between 'const enum testgen_r::ExampleEnum' and 'const enum testgen::ExampleEnum'" (peter liu via thiru)
 
+    AVRO-1823: Java: Do not swallow IOException while reading magic bytes.
+    (Koji Noguchi via blue)
+
   BUG FIXES
 
     AVRO-1493. Java: Avoid the "Turkish Locale Problem". Schema fingerprints are

diff --git a/lang/java/avro/src/main/java/org/apache/avro/file/DataFileStream.java b/lang/java/avro/src/main/java/org/apache/avro/file/DataFileStream.java
@@ -99,7 +99,7 @@ void initialize(InputStream in) throws IOException {
     try {
       vin.readFixed(magic);                         // read magic
     } catch (IOException e) {
-      throw new IOException("Not a data file.");
+      throw new IOException("Not a data file.", e);
     }
     if (!Arrays.equals(DataFileConstants.MAGIC, magic))
       throw new IOException("Not a data file.");