Fix bzip2 compression for empty contents

- see https://github.com/bcgit/bc-java/issues/993

1 files changed, 4 insertions, 1 deletions

diff --git a/crypto/bzip2/src/CBZip2OutputStream.cs b/crypto/bzip2/src/CBZip2OutputStream.cs

index ffac073fb..6e9d86bba 100644
--- a/crypto/bzip2/src/CBZip2OutputStream.cs
+++ b/crypto/bzip2/src/CBZip2OutputStream.cs
@@ -423,7 +423,10 @@ namespace Org.BouncyCastle.Apache.Bzip2
                 WriteRun();
             }
             currentChar = -1;
-            EndBlock();
+            if (last >= 0)
+            {
+                EndBlock();
+            }
             EndCompression();
             finished = true;
             Flush();