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https://issues.apache.org/jira/browse/MSHARED-1297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17755297#comment-17755297
 ] 

ASF GitHub Bot commented on MSHARED-1297:
-----------------------------------------

elharo commented on code in PR #42:
URL: https://github.com/apache/maven-archiver/pull/42#discussion_r1296514319


##########
src/main/java/org/apache/maven/archiver/MavenArchiver.java:
##########
@@ -800,6 +800,21 @@ public static Optional<Instant> 
parseBuildOutputTimestamp(String outputTimestamp
         }
     }
 
+    private static boolean isNumeric(String str) {
+
+        if (str.isEmpty()) {
+            return false;
+        }
+
+        for (char c : str.toCharArray()) {
+            if (!Character.isDigit(c)) {

Review Comment:
   This is likely not what you want. It includes lots of non-ASCII digits like 
Devanagari digits. Long.parseLong won't work on these.
   
   There might also be an issue with negative numbers. 





> Prefer JDK features over plexus-utils, plexus-io
> ------------------------------------------------
>
>                 Key: MSHARED-1297
>                 URL: https://issues.apache.org/jira/browse/MSHARED-1297
>             Project: Maven Shared Components
>          Issue Type: Task
>          Components: maven-archiver
>            Reporter: Slawomir Jaranowski
>            Assignee: Slawomir Jaranowski
>            Priority: Major
>             Fix For: maven-archiver-3.6.1
>
>




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