[commons-io] branch master updated: No need to allocate empty byte arrays over and over.

[ggregory]

This is an automated email from the ASF dual-hosted git repository.

ggregory pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-io.git


The following commit(s) were added to refs/heads/master by this push:
     new 72d53cf  No need to allocate empty byte arrays over and over.
72d53cf is described below

commit 72d53cf242788510de904c0c239d8804fc73c2dd
Author: Gary Gregory <garydgreg...@gmail.com>
AuthorDate: Wed Dec 25 11:45:48 2019 -0500

    No need to allocate empty byte arrays over and over.
---
 src/main/java/org/apache/commons/io/IOUtils.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/commons/io/IOUtils.java 
b/src/main/java/org/apache/commons/io/IOUtils.java
index f484c03..23927e1 100644
--- a/src/main/java/org/apache/commons/io/IOUtils.java
+++ b/src/main/java/org/apache/commons/io/IOUtils.java
@@ -105,6 +105,8 @@ public class IOUtils {
     // Writer. Each method should take at least one of these as a parameter,
     // or return one of them.
 
+    private static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
+
     /**
      * The default buffer size ({@value}) to use in copy methods.
      */
@@ -2233,7 +2235,7 @@ public class IOUtils {
         }
 
         if (size == 0) {
-            return new byte[0];
+            return EMPTY_BYTE_ARRAY;
         }
 
         final byte[] data = new byte[size];