elharo commented on code in PR #147:
URL: https://github.com/apache/maven-shared-jar/pull/147#discussion_r3735510575


##########
src/main/java/org/apache/maven/shared/jar/identification/hash/JarBytecodeHashAnalyzer.java:
##########
@@ -49,13 +51,19 @@ public String computeHash(JarAnalyzer jarAnalyzer) {
             List<JarEntry> entries = jarAnalyzer.getClassEntries();
 
             try {
+                MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
+                byte[] buffer = new byte[8192];
                 for (JarEntry entry : entries) {
                     try (InputStream is = 
jarAnalyzer.getEntryInputStream(entry)) {
-                        result = DigestUtils.sha1Hex(is);
+                        int read;
+                        while ((read = is.read(buffer)) != -1) {
+                            sha1.update(buffer, 0, read);
+                        }

Review Comment:
   There's no such method that takes an InputStream as an argument



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