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[PATCH JGIT] Method invokes inefficient new String(String) constructor

From
Sohn, Matthias <matthias.sohn@sap.com>
Date
Apr 27, 2009, 23:05 UTC
Message-ID
<366BBB1215D0AB4B8A153AF047A2878002FCE7E8@dewdfe18.wdf.sap.corp>
In-Reply-To
<366BBB1215D0AB4B8A153AF047A2878002FCE7E7@dewdfe18.wdf.sap.corp>

Using the java.lang.String(String) constructor wastes memory because the object so constructed will be functionally indistinguishable from the String passed as a parameter. Just use the argument String directly.

Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
---
 .../src/org/spearce/jgit/lib/RefDatabase.java      |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/org.spearce.jgit/src/org/spearce/jgit/lib/RefDatabase.java
b/org.spearce.jgit/src/org/spearce/jgit/lib/RefDatabase.java
index 87f26bf..49da538 100644
--- a/org.spearce.jgit/src/org/spearce/jgit/lib/RefDatabase.java
+++ b/org.spearce.jgit/src/org/spearce/jgit/lib/RefDatabase.java
@@ -447,7 +447,7 @@ private synchronized void refreshPackedRefs() {
 
 					final int sp = p.indexOf(' ');
 					final ObjectId id =
ObjectId.fromString(p.substring(0, sp));
-					final String name = new
String(p.substring(sp + 1));
+					final String name =
p.substring(sp + 1);
 					last = new
Ref(Ref.Storage.PACKED, name, name, id);
 
newPackedRefs.put(last.getName(), last);
 				}
-- 
1.6.2.2.1669.g7eaf8
Previous: Sohn, MatthiasNext: Sohn, Matthias
Message 2 of 9 in “Computation of average could overflow”
  1. Computation of average could overflowSohn, Matthias, Apr 27, 2009
  2. Method invokes inefficient new String(String) constructorSohn, Matthias, Apr 27, 2009
  3. Method invokes inefficient Number constructor; use static valueOf insteadSohn, Matthias, Apr 27, 2009
  4. Method ignores results of InputStream.skip()Sohn, Matthias, Apr 27, 2009
  5. Shawn O. PearceApr 27, 2009
  6. Method ignores results of InputStream.skip()Sohn, Matthias, Apr 28, 2009
  7. Shawn O. PearceApr 27, 2009
  8. Shawn O. PearceApr 27, 2009
  9. Shawn O. PearceApr 27, 2009

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