NS_DANGEROUS_NON_SHORT_CIRCUIT

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1297169 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/zip/ZipOutputStream.java

@@ -349,7 +349,7 @@ public class ZipOutputStream extends FilterOutputStream {
     public void setEncoding(final String encoding) {
         this.encoding = encoding;
         this.zipEncoding = ZipEncodingHelper.getZipEncoding(encoding);
-        useUTF8Flag &= ZipEncodingHelper.isUTF8(encoding);
+        useUTF8Flag = useUTF8Flag && ZipEncodingHelper.isUTF8(encoding);
     }
 
     /**