Prevent noop when nothing is read

1 files changed, 3 insertions, 1 deletions

diff --git a/src/main/java/com/it_jaros/jscanner/Scanner.java b/src/main/java/com/it_jaros/jscanner/Scanner.java
index 7ef6c3e..775c0d5 100644
--- a/src/main/java/com/it_jaros/jscanner/Scanner.java
+++ b/src/main/java/com/it_jaros/jscanner/Scanner.java
@@ -417,7 +417,9 @@ public class Scanner implements AutoCloseable {
                 if (bytesRead == -1) {
                     break;
                 }
-                byteArrayOutputStream.write(buffer, 0, bytesRead);
+                if (bytesRead > 0) {
+                    byteArrayOutputStream.write(buffer, 0, bytesRead);
+                }
                 long remaining = deadlineNanos - System.nanoTime();
                 if (remaining <= 0) {
                     timedout = true;