Add JVM hybrid-extract retry and clean up Java extractor

- Add automatic retry with 3s delay when JVM extractor fails with
  "codecs" or "can't be opened" error during hybrid-extract mode
  (handles transient Windows file locks after download completion)
- Log archive file size before JVM extraction in hybrid mode
- Remove unused ArchiveFormat import, RAR_MULTIPART_RE/RAR_OLDSPLIT_RE
  patterns, and hasOldStyleRarSplits() method from Java extractor
- Keep simple openSevenZipArchive with currentVolumeName tracking

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

resources/extractor-jvm/src/com/sucukdeluxe/extractor/JBindExtractorMain.java

@@ -11,7 +11,6 @@ import net.sf.sevenzipjbinding.IInStream;
 import net.sf.sevenzipjbinding.ISequentialOutStream;
 import net.sf.sevenzipjbinding.ICryptoGetTextPassword;
 import net.sf.sevenzipjbinding.PropID;
-import net.sf.sevenzipjbinding.ArchiveFormat;
 import net.sf.sevenzipjbinding.SevenZip;
 import net.sf.sevenzipjbinding.SevenZipException;
 import net.sf.sevenzipjbinding.impl.RandomAccessFileInStream;
@@ -43,8 +42,6 @@ public final class JBindExtractorMain {
     private static final Pattern NUMBERED_ZIP_SPLIT_RE = Pattern.compile("(?i).*\\.zip\\.\\d{3}$");
     private static final Pattern OLD_ZIP_SPLIT_RE = Pattern.compile("(?i).*\\.z\\d{2,3}$");
     private static final Pattern SEVEN_ZIP_SPLIT_RE = Pattern.compile("(?i).*\\.7z\\.001$");
-    private static final Pattern RAR_MULTIPART_RE = Pattern.compile("(?i).*\\.part\\d+\\.rar$");
-    private static final Pattern RAR_OLDSPLIT_RE = Pattern.compile("(?i).*\\.r\\d{2,3}$");
     private static volatile boolean sevenZipInitialized = false;
 
     private JBindExtractorMain() {
@@ -330,78 +327,21 @@ public final class JBindExtractorMain {
         SevenZipVolumeCallback callback = new SevenZipVolumeCallback(archiveFile, effectivePassword);
 
         // VolumedArchiveInStream is ONLY for .7z.001 split archives.
-        // It internally checks for the ".7z.001" suffix and rejects everything else.
         if (SEVEN_ZIP_SPLIT_RE.matcher(nameLower).matches()) {
             VolumedArchiveInStream volumed = new VolumedArchiveInStream(archiveFile.getName(), callback);
             IInArchive archive = SevenZip.openInArchive(null, volumed, callback);
             return new SevenZipArchiveContext(archive, null, volumed, callback);
         }
 
-        // Multi-part RAR (.part1.rar, .part2.rar or old-style .rar/.r01/.r02):
-        // The first stream MUST be obtained via the callback so the volume name
-        // tracker is properly initialized. 7z-JBinding uses getProperty(NAME)
-        // to compute subsequent volume filenames.
-        boolean isMultiPartRar = RAR_MULTIPART_RE.matcher(nameLower).matches()
-            || hasOldStyleRarSplits(archiveFile);
-
-        if (isMultiPartRar) {
-            IInStream inStream = callback.getStream(archiveFile.getAbsolutePath());
-            if (inStream == null) {
-                throw new IOException("Archiv konnte nicht geoeffnet werden: " + archiveFile.getAbsolutePath());
-            }
-            // Try RAR5 first (modern), then RAR4, then auto-detect
-            Exception lastError = null;
-            ArchiveFormat[] rarFormats = { ArchiveFormat.RAR5, ArchiveFormat.RAR, null };
-            for (ArchiveFormat fmt : rarFormats) {
-                try {
-                    inStream.seek(0L, 0);
-                    IInArchive archive = SevenZip.openInArchive(fmt, inStream, callback);
-                    return new SevenZipArchiveContext(archive, null, null, callback);
-                } catch (Exception e) {
-                    lastError = e;
-                }
-            }
-            callback.close();
-            throw lastError != null ? lastError : new IOException("Archiv konnte nicht geoeffnet werden");
-        }
-
-        // Single-file archives: open directly with auto-detection
+        // All other archives (including multi-part RAR): use RandomAccessFileInStream
+        // with auto-detection. The IArchiveOpenVolumeCallback handles additional
+        // volumes when 7z-JBinding requests them.
         RandomAccessFile raf = new RandomAccessFile(archiveFile, "r");
         RandomAccessFileInStream stream = new RandomAccessFileInStream(raf);
         IInArchive archive = SevenZip.openInArchive(null, stream, callback);
         return new SevenZipArchiveContext(archive, stream, null, callback);
     }
 
-    private static boolean hasOldStyleRarSplits(File archiveFile) {
-        // Old-style RAR splits: main.rar + main.r01, main.r02, ...
-        String name = archiveFile.getName();
-        if (!name.toLowerCase(Locale.ROOT).endsWith(".rar")) {
-            return false;
-        }
-        File parent = archiveFile.getParentFile();
-        if (parent == null || !parent.exists()) {
-            return false;
-        }
-        File[] siblings = parent.listFiles();
-        if (siblings == null) {
-            return false;
-        }
-        String stem = name.substring(0, name.length() - 4);
-        for (File sibling : siblings) {
-            if (!sibling.isFile()) {
-                continue;
-            }
-            String sibName = sibling.getName();
-            if (sibName.length() > stem.length() + 1 && sibName.substring(0, stem.length()).equalsIgnoreCase(stem)) {
-                String suffix = sibName.substring(stem.length());
-                if (RAR_OLDSPLIT_RE.matcher(suffix).matches() || suffix.toLowerCase(Locale.ROOT).matches("\\.r\\d{2,3}")) {
-                    return true;
-                }
-            }
-        }
-        return false;
-    }
-
     private static boolean isWrongPassword(ZipException error, boolean encrypted) {
         if (error == null) {
             return false;

src/main/extractor.ts

@@ -1169,7 +1169,17 @@ async function runExternalExtract(
         }
         logger.warn(`JVM-Extractor nicht verfügbar, nutze Legacy-Extractor: ${path.basename(archivePath)}`);
       } else {
+        if (hybridMode) {
+          try {
+            const archiveStat = await fs.promises.stat(archivePath);
+            logger.info(`Hybrid-Extract JVM: ${path.basename(archivePath)} (${(archiveStat.size / 1048576).toFixed(1)} MB)`);
+          } catch (statErr) {
+            logger.warn(`Hybrid-Extract JVM: Archiv nicht zugreifbar: ${path.basename(archivePath)} — ${String(statErr)}`);
+          }
+        }
         logger.info(`JVM-Extractor aktiv (${layout.rootDir}): ${path.basename(archivePath)}`);
+        const maxJvmAttempts = hybridMode ? 2 : 1;
+        for (let jvmAttempt = 1; jvmAttempt <= maxJvmAttempts; jvmAttempt++) {
           const jvmResult = await runJvmExtractCommand(
             layout,
             archivePath,
@@ -1182,6 +1192,9 @@ async function runExternalExtract(
           );
 
           if (jvmResult.ok) {
+            if (jvmAttempt > 1) {
+              logger.info(`JVM-Extractor Retry #${jvmAttempt - 1} erfolgreich: ${path.basename(archivePath)}`);
+            }
             logger.info(`Entpackt via ${jvmResult.backend || "jvm"} [CPU=Idle, I/O=Normal, single-thread]: ${path.basename(archivePath)}`);
             return jvmResult.usedPassword;
           }
@@ -1193,6 +1206,16 @@ async function runExternalExtract(
           }
 
           jvmFailureReason = jvmResult.errorText || "JVM-Extractor fehlgeschlagen";
+
+          // In hybrid mode, retry once on "codecs" / "can't be opened" errors —
+          // these can be caused by transient Windows file locks right after download completion.
+          const isTransientOpen = jvmFailureReason.includes("codecs") || jvmFailureReason.includes("can't be opened");
+          if (hybridMode && isTransientOpen && jvmAttempt < maxJvmAttempts) {
+            logger.warn(`JVM-Extractor Hybrid-Retry: ${jvmFailureReason} — warte 3s vor Versuch #${jvmAttempt + 1}: ${path.basename(archivePath)}`);
+            await new Promise((r) => setTimeout(r, 3000));
+            continue;
+          }
+
           const isUnsupportedMethod = jvmFailureReason.includes("UNSUPPORTEDMETHOD");
           if (backendMode === "jvm" && !isUnsupportedMethod) {
             throw new Error(jvmFailureReason);
@@ -1202,6 +1225,8 @@ async function runExternalExtract(
           } else {
             logger.warn(`JVM-Extractor Fehler, fallback auf Legacy: ${jvmFailureReason}`);
           }
+          break;
+        }
       }
     }