Remove log4j, to fix current and future CVEs.

app/.classpath

@@ -38,8 +38,6 @@
 	<classpathentry kind="lib" path="lib/jmdns-3.5.5.jar"/>
 	<classpathentry kind="lib" path="lib/slf4j-api-1.7.22.jar"/>
 	<classpathentry kind="lib" path="lib/slf4j-simple-1.7.22.jar"/>
-	<classpathentry kind="lib" path="lib/log4j-api-2.16.0.jar"/>
-	<classpathentry kind="lib" path="lib/log4j-core-2.16.0.jar"/>
 	<classpathentry kind="lib" path="lib/jsch-0.1.50.jar"/>
 	<classpathentry kind="lib" path="lib/rsyntaxtextarea-3.0.3-SNAPSHOT.jar"/>
 	<classpathentry kind="lib" path="lib/xml-apis-1.3.04.jar"/>

app/build.xml

@@ -80,10 +80,6 @@
 	   includeAntRuntime="false"
 	   debug="true"
 	   classpathref="class.path" />
-    <!-- If you want to add files in the jars -->
-    <copy todir="bin" overwrite="true" verbose="true">
-      <fileset dir="src" includes="log4j2.xml" />
-    </copy>
   </target>
 
   <target name="test" depends="compile" description="Runs the test">

app/src/cc/arduino/contributions/ContributionsSelfCheck.java

@@ -35,7 +35,6 @@
 import cc.arduino.contributions.packages.ContributionInstaller;
 import cc.arduino.contributions.packages.filters.UpdatablePlatformPredicate;
 import cc.arduino.view.NotificationPopup;
-import org.apache.logging.log4j.LogManager;
 import processing.app.*;
 
 import javax.swing.*;
@@ -160,12 +159,14 @@ public void windowGainedFocus(WindowEvent evt) {
 
   private void goToManager(String link) {
     try {
-      ((UpdatableBoardsLibsFakeURLsHandler) hyperlinkListener).openBoardLibManager(new URL(link));
-    }
-      catch (Exception e){
-        LogManager.getLogger(ContributionsSelfCheck.class).warn("Exception while attempting to go to board manager", e);
+      ((UpdatableBoardsLibsFakeURLsHandler) hyperlinkListener)
+          .openBoardLibManager(new URL(link));
+    } catch (Exception e) {
+      System.err.println("Error while attempting to open board manager: "
+                         + e.getMessage());
     }
   }
+
   // callback for boards button
   public void onOptionalButton1Callback() {
     goToManager(boardsManagerURL);

app/src/processing/app/Base.java

@@ -220,12 +220,6 @@ public Base(String[] args) throws Exception {
     parser.parseArgumentsPhase1();
     commandLine = !parser.isGuiMode();
 
-    // This configure the logs root folder
-    if (parser.isGuiMode()) {
-        System.out.println("Set log4j store directory " + BaseNoGui.getSettingsFolder().getAbsolutePath());
-    }
-    System.setProperty("log4j.dir", BaseNoGui.getSettingsFolder().getAbsolutePath());
-
     BaseNoGui.checkInstallationFolder();
 
     // If no path is set, get the default sketchbook folder for this platform

arduino-core/.classpath

@@ -8,8 +8,6 @@
 	<classpathentry kind="lib" path="lib/jmdns-3.5.5.jar"/>
 	<classpathentry kind="lib" path="lib/slf4j-api-1.7.22.jar"/>
 	<classpathentry kind="lib" path="lib/slf4j-simple-1.7.22.jar"/>
-	<classpathentry kind="lib" path="lib/log4j-api-2.16.0.jar"/>
-	<classpathentry kind="lib" path="lib/log4j-core-2.16.0.jar"/>
 	<classpathentry kind="lib" path="lib/jsch-0.1.50.jar"/>
 	<classpathentry kind="lib" path="lib/commons-exec-1.1.jar"/>
 	<classpathentry kind="lib" path="../app/lib/commons-httpclient-3.1.jar"/>

arduino-core/src/cc/arduino/contributions/DownloadableContributionsDownloader.java

@@ -34,8 +34,6 @@
 import cc.arduino.utils.Progress;
 import cc.arduino.utils.network.FileDownloader;
 import org.apache.commons.io.FilenameUtils;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import processing.app.BaseNoGui;
 import processing.app.PreferencesData;
 
@@ -48,8 +46,6 @@
 import static processing.app.I18n.tr;
 
 public class DownloadableContributionsDownloader {
-  private static Logger log = LogManager.getLogger(DownloadableContributionsDownloader.class);
-
   private final File stagingFolder;
 
   public DownloadableContributionsDownloader(File _stagingFolder) {
@@ -151,7 +147,6 @@ public void download(URL url, File tmpFile, Progress progress, String statusText
   }
 
   public void downloadIndexAndSignature(MultiStepProgress progress, URL packageIndexUrl, ProgressListener progressListener, SignatureVerifier signatureVerifier) throws Exception {
-
     // Extract the file name from the url
     final String indexFileName = FilenameUtils.getName(packageIndexUrl.getPath());
     final File packageIndex = BaseNoGui.indexer.getIndexFile(indexFileName);
@@ -169,16 +164,13 @@ public void downloadIndexAndSignature(MultiStepProgress progress, URL packageInd
         if (checkSignature(progress, signatureUrl, progressListener, signatureVerifier, statusText, packageIndexTemp)) {
           Files.move(packageIndexTemp.toPath(), packageIndex.toPath(), StandardCopyOption.REPLACE_EXISTING);
         } else {
-          log.info("The cached files have been removed. {} {}", packageIndexUrl, signatureUrl);
           FileDownloader.invalidateFiles(packageIndexUrl, signatureUrl);
         }
       } else {
         // Move the package index to the destination when the signature is not necessary
         Files.move(packageIndexTemp.toPath(), packageIndex.toPath(), StandardCopyOption.REPLACE_EXISTING);
-        log.info("The domain is not selected to verify the signature. will be copied into this path {}, packageIndex url: {}", packageIndex, packageIndexUrl);
       }
     } catch (Exception e) {
-      log.error("Cannot download the package index from {} the package will be discard", packageIndexUrl, e);
       throw e;
     } finally {
       // Delete useless temp file
@@ -196,49 +188,39 @@ public boolean verifyDomain(URL url) {
     if (domain.contains(url.getHost())) {
       return true;
     } else {
-      log.info("The domain is not selected to verify the signature. domain list: {}, url: {}", domain, url);
       return false;
     }
   }
 
   public boolean checkSignature(MultiStepProgress progress, URL signatureUrl, ProgressListener progressListener, SignatureVerifier signatureVerifier, String statusText, File fileToVerify) throws Exception {
-
-
     // Signature file name
     final String signatureFileName = FilenameUtils.getName(signatureUrl.getPath());
     final File packageIndexSignature = BaseNoGui.indexer.getIndexFile(signatureFileName);
     final File packageIndexSignatureTemp = File.createTempFile(signatureFileName, ".tmp");
 
-
     try {
       // Download signature
       download(signatureUrl, packageIndexSignatureTemp, progress, statusText, progressListener, true);
 
       if (PreferencesData.areInsecurePackagesAllowed()) {
         Files.move(packageIndexSignatureTemp.toPath(), packageIndexSignature.toPath(), StandardCopyOption.REPLACE_EXISTING);
-        log.info("Allowing insecure packages because allow_insecure_packages is set to true in preferences.txt" +
-          " but the signature was download");
         return true;
       }
 
       // Verify the signature before move the files
       final boolean signatureVerified = signatureVerifier.isSigned(fileToVerify, packageIndexSignatureTemp);
       if (signatureVerified) {
-        log.info("Signature verified. url={}, signature url={}, file to verify={}, signature file={}", signatureUrl, signatureUrl, fileToVerify, packageIndexSignatureTemp);
         // Move if the signature is ok
         Files.move(packageIndexSignatureTemp.toPath(), packageIndexSignature.toPath(), StandardCopyOption.REPLACE_EXISTING);
       } else {
-        log.error("{} file signature verification failed. File ignored.", signatureUrl);
         System.err.println(format(tr("{0} file signature verification failed. File ignored."), signatureUrl.toString()));
       }
       return signatureVerified;
     } catch (Exception e) {
-      log.error("Cannot download the signature from {} the package will be discard", signatureUrl, e);
       throw e;
     } finally {
       Files.deleteIfExists(packageIndexSignatureTemp.toPath());
     }
-
   }
 
 }

arduino-core/src/cc/arduino/contributions/libraries/LibraryInstaller.java

@@ -38,8 +38,6 @@
 import cc.arduino.utils.MultiStepProgress;
 import cc.arduino.utils.network.FileDownloader;
 import org.apache.commons.io.FilenameUtils;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import processing.app.BaseNoGui;
 import processing.app.I18n;
 import processing.app.Platform;
@@ -57,8 +55,6 @@
 import static processing.app.I18n.tr;
 
 public class LibraryInstaller {
-  private static Logger log = LogManager.getLogger(LibraryInstaller.class);
-
   private final Platform platform;
   private final GPGDetachedSignatureVerifier signatureVerifier;
 
@@ -97,10 +93,7 @@ public synchronized void updateIndex(ProgressListener progressListener) throws E
         }
       } else {
         FileDownloader.invalidateFiles(libraryGzURL, libraryURL, signatureUrl);
-        log.error("Fail to verify the signature of {} the cached files have been removed", libraryURL);
       }
-    } else {
-      log.info("The domain is not selected to verify the signature. library index: {}", signatureUrl);
     }
 
     // Step 2: Parse index

arduino-core/src/cc/arduino/contributions/packages/ContributionInstaller.java

@@ -41,8 +41,6 @@
 import org.apache.commons.exec.DefaultExecutor;
 import org.apache.commons.exec.Executor;
 import org.apache.commons.exec.PumpStreamHandler;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import processing.app.BaseNoGui;
 import processing.app.I18n;
 import processing.app.Platform;
@@ -64,8 +62,6 @@
 import static processing.app.I18n.tr;
 
 public class ContributionInstaller {
-  private static Logger log = LogManager.getLogger(ContributionInstaller.class);
-
   private final Platform platform;
   private final SignatureVerifier signatureVerifier;
 
@@ -271,8 +267,6 @@ public synchronized List<String> remove(ContributedPlatform contributedPlatform)
         Files.delete(destFolder.getParentFile().toPath());
       } catch (Exception e) {
         // ignore
-        log.info("The directory is not empty there is another version installed. directory {}",
-          destFolder.getParentFile().toPath(),  e);
       }
     }
 
@@ -298,15 +292,12 @@ public synchronized void updateIndex(ProgressListener progressListener) {
         // Extract the file name from the URL
         final URL packageIndexURL = new URL(packageIndexURLString);
 
-        log.info("Start download and signature check of={}", packageIndexURLs);
         downloader.downloadIndexAndSignature(progress, packageIndexURL, progressListener, signatureVerifier);
       } catch (Exception e) {
-        log.error(e.getMessage(), e);
         System.err.println(e.getMessage());
       }
     }
 
     progress.stepDone();
-    log.info("Downloaded package index URL={}", packageIndexURLs);
   }
 }

arduino-core/src/cc/arduino/utils/network/FileDownloader.java

@@ -30,8 +30,6 @@
 package cc.arduino.utils.network;
 
 import org.apache.commons.compress.utils.IOUtils;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import processing.app.helpers.FileUtils;
 
 import javax.script.ScriptException;
@@ -50,8 +48,6 @@
 import java.util.Optional;
 
 public class FileDownloader extends Observable {
-  private static Logger log = LogManager.getLogger(FileDownloader.class);
-
   public enum Status {
     CONNECTING, //
     CONNECTION_TIMEOUT_ERROR, //
@@ -146,17 +142,16 @@ public static void invalidateFiles(URL... filesUrl) {
       try {
         FileDownloaderCache.getFileCached(url).ifPresent(fileCached -> {
           try {
-            log.info("Invalidate this file {} that comes from {}", fileCached.getLocalPath(), fileCached.getRemoteURL());
             fileCached.invalidateCache();
           } catch (Exception e) {
-            log.warn("Fail to invalidate cache", e);
+            System.err.println("Error invalidating cached file " + fileCached.getLocalPath() + " that comes from "
+                + fileCached.getRemoteURL() + ": " + e.getMessage());
           }
         });
       } catch (URISyntaxException | NoSuchMethodException | ScriptException | IOException e) {
-        log.warn("Fail to get the file cached during the file invalidation", e);
+        System.err.println("Fail to get the file cached during the file invalidation" + e.getMessage());
       }
     });
-
   }
 
   private void downloadFile(boolean noResume) throws InterruptedException {
@@ -171,7 +166,6 @@ private void downloadFile(boolean noResume) throws InterruptedException {
         final Optional<File> fileFromCache = getFileCached(fileCached);
         if (fileCached.isNotChange() && fileFromCache.isPresent()) {
           // Copy the cached file in the destination file
-          log.info("The file will be taken from the cache {}", fileFromCache);
           FileUtils.copyFile(fileFromCache.get(), outputFile);
         } else {
           openConnectionAndFillTheFile(noResume);
@@ -191,34 +185,23 @@ private void downloadFile(boolean noResume) throws InterruptedException {
     } catch (SocketTimeoutException e) {
       setStatus(Status.CONNECTION_TIMEOUT_ERROR);
       setError(e);
-      log.error("The request went in socket timeout", e);
 
     } catch (Exception e) {
       setStatus(Status.ERROR);
       setError(e);
-      log.error("The request stop", e);
     }
 
   }
 
   private Optional<File> getFileCached(FileDownloaderCache.FileCached fileCached) {
-
     try {
-      final Optional<File> fileFromCache =
-        fileCached.getFileFromCache();
+      final Optional<File> fileFromCache = fileCached.getFileFromCache();
       if (fileFromCache.isPresent()) {
-        log.info("No need to download using cached file: {}", fileCached);
         return fileFromCache;
-      } else {
-        log.info(
-          "The file in the cache is not in the path or the md5 validation failed: path={}, file exist={}, md5 validation={}",
-          fileCached.getLocalPath(), fileCached.exists(), fileCached.md5Check());
       }
     } catch (Exception e) {
-      log.warn(
-        "Cannot get the file from the cache, will be downloaded a new one ", e);
+      // Cannot get the file from the cache, download a new one
     }
-    log.info("The file is change {}", fileCached);
     return Optional.empty();
   }
 

arduino-core/src/cc/arduino/utils/network/FileDownloaderCache.java

@@ -38,8 +38,6 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.databind.node.ObjectNode;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import processing.app.BaseNoGui;
 import processing.app.PreferencesData;
 import processing.app.helpers.FileUtils;
@@ -64,18 +62,13 @@
 
 public class FileDownloaderCache {
   private final static String CACHE_ENABLE_PREFERENCE_KEY = "cache.enable";
-  private final static Logger log = LogManager
-    .getLogger(FileDownloaderCache.class);
   private final static Map<String, FileCached> cachedFiles = Collections
     .synchronizedMap(new HashMap<>());
   private final static String cacheFolder;
   private static boolean enableCache;
 
   static {
     enableCache = Boolean.valueOf(PreferencesData.get(CACHE_ENABLE_PREFERENCE_KEY, "true"));
-    if (!enableCache) {
-      log.info("The cache is disable cache.enable=false");
-    }
     PreferencesData.set(CACHE_ENABLE_PREFERENCE_KEY, Boolean.toString(enableCache));
 
     final File settingsFolder;
@@ -86,10 +79,8 @@ public class FileDownloaderCache {
     } else {
       enableCache = false;
       cacheFolder = null;
-      log.error("The cache will disable because the setting folder is null, cannot generate the cache path");
     }
     final Path pathCacheInfo = getCachedInfoPath();
-    log.info("Cache folder {}", cacheFolder);
     try {
       if (Files.exists(pathCacheInfo)) {
         ObjectMapper mapper = new ObjectMapper();
@@ -109,31 +100,26 @@ public class FileDownloaderCache {
             .collect(Collectors.toMap(FileCached::getRemoteURL, Function.identity()))
           )
         );
-        log.info("Number of file already in the cache {}", cachedFiles.size());
 
       }
     } catch (Exception e) {
-      log.error("Cannot initialized the cache", e);
+      System.err.println("Cannot initialized the cache: " + e.getMessage());
     }
   }
 
   public static Optional<FileCached> getFileCached(final URL remoteURL)
-    throws URISyntaxException, NoSuchMethodException, ScriptException,
-    IOException {
+      throws URISyntaxException, NoSuchMethodException, ScriptException, IOException {
     return getFileCached(remoteURL, true);
   }
 
   public static Optional<FileCached> getFileCached(final URL remoteURL, boolean enableCache)
-    throws URISyntaxException, NoSuchMethodException, ScriptException,
-    IOException {
+      throws URISyntaxException, NoSuchMethodException, ScriptException, IOException {
     // Return always and empty file if the cache is not enable
     if (!(enableCache && FileDownloaderCache.enableCache)) {
-      log.info("The cache is not enable.");
       return Optional.empty();
     }
     final String[] splitPath = remoteURL.getPath().split("/");
     if (splitPath.length == 0) {
-      log.warn("The remote path as no file name {}", remoteURL);
       return Optional.empty();
     }
     // Create the path where the cached file should exist
@@ -146,19 +132,14 @@ public static Optional<FileCached> getFileCached(final URL remoteURL, boolean en
       .orElseGet(() -> new FileCached(remoteURL.toString(), cacheFilePath.toString()));
 
     // If the file is change of the cache is disable run the HEAD request to check if the file is changed
-    log.info("Get file cached is expire {}, exist {}, info {} ", fileCached.isExpire(), fileCached.exists(), fileCached);
     if (fileCached.isExpire() || !fileCached.exists()) {
       // Update remote etag and cache control header
       final Optional<FileCached> fileCachedInfoUpdated =
         FileDownloaderCache.updateCacheInfo(remoteURL, (remoteETagClean, cacheControl) -> {
           // Check cache control data
           if (cacheControl.isNoCache() || cacheControl.isMustRevalidate() || cacheControl.isNoStore()) {
-            log.warn("The file {} must not be cache due to cache control header {}",
-              remoteURL, cacheControl);
             return Optional.empty();
           }
-          log.info("Update cached info of {}, createdAt {}, previous eTag {}, last eTag {}, cache control header {} ",
-            remoteURL, fileCached.createdAt, fileCached.eTag, remoteETagClean, cacheControl);
           final FileCached fileCachedUpdateETag = new FileCached(
             remoteURL.toString(),
             cacheFilePath.toString(),
@@ -180,20 +161,18 @@ private static Optional<FileCached> updateCacheInfo(URL remoteURL, BiFunction<St
     throws URISyntaxException, NoSuchMethodException, ScriptException,
     IOException {
     // Update the headers of the cached file
-    final HttpURLConnection headRequest = new HttpConnectionManager(
-      remoteURL).makeConnection((connection) -> {
+    final HttpURLConnection headRequest = new HttpConnectionManager(remoteURL).makeConnection((connection) -> {
       try {
         connection.setRequestMethod("HEAD");
       } catch (ProtocolException e) {
-        log.error("Invalid protocol", e);
+        System.err.println(e.getMessage());
       }
     });
     final int responseCode = headRequest.getResponseCode();
     headRequest.disconnect();
     // Something bad is happening return a conservative true to try to download the file
     if (responseCode < 200 || responseCode >= 300) {
-      log.warn("The head request return a bad response code " + responseCode);
-      // if something bad happend
+      // if something bad happened
       return Optional.empty();
     }
     // Get all the useful headers
@@ -204,7 +183,7 @@ private static Optional<FileCached> updateCacheInfo(URL remoteURL, BiFunction<St
       final CacheControl cacheControl = CacheControl.valueOf(cacheControlHeader);
       return getNewFile.apply(remoteETagClean, cacheControl);
     }
-    log.warn("The head request do not return the ETag {} or the Cache-Control {}", remoteETag, cacheControlHeader);
+    // the head request do not return the ETag or the Cache-Control
     return Optional.empty();
   }
 
@@ -223,7 +202,6 @@ private synchronized static void updateCacheFilesInfo() throws IOException {
     if (Files.notExists(cachedFileInfo)) {
       Files.createDirectories(cachedFileInfo.getParent());
     }
-    log.info("Update cache file info in {}, number of cached files is {}", cachedFileInfo.toFile(), cachedFiles.size());
     // Write to cache.json
     mapper.writeValue(cachedFileInfo.toFile(), objectNode);
   }
@@ -287,19 +265,16 @@ public boolean isNotChange() {
     @JsonIgnore
     public boolean isChange() {
       // Check if the file is expire
-      boolean isChange = false;
+      boolean isChanged = false;
       if (isExpire()) {
-        log.debug("The file \"{}\" is expire. Expire time: {}", localPath,
-          this.getExpiresTime().format(DateTimeFormatter.ISO_DATE_TIME));
-        isChange = true;
+        isChanged = true;
       }
 
       if (lastETag != null && !lastETag.equals(eTag)) {
-        // If are different means that the file is change
-        log.debug("The file \"{}\" is changed last ETag != now Etag ({}!={})", localPath, lastETag, eTag);
-        isChange = true;
+        // Different ETag means that the file is changed
+        isChanged = true;
       }
-      return isChange;
+      return isChanged;
     }
 
     @JsonIgnore
@@ -327,7 +302,6 @@ public synchronized void updateCacheFile(File fileToCache) throws Exception {
       final String md5 = this.calculateMD5();
       final String eTag;
       if (lastETag == null) {
-        log.warn("The eTag was not calculate this time, is not the right behaviour fileCached={}, md5={}", this, md5);
         eTag = this.eTag;
       } else {
         eTag = this.lastETag;
@@ -340,10 +314,8 @@ public synchronized void updateCacheFile(File fileToCache) throws Exception {
         md5,
         this.cacheControl
       );
-      log.info("Update cache file: {}", newFileCached);
       cachedFiles.put(remoteURL, newFileCached);
       updateCacheFilesInfo();
-
     }
 
     public synchronized void invalidateCache() throws IOException {
@@ -363,7 +335,6 @@ public boolean md5Check() {
       try {
         return !Objects.isNull(getMD5()) && Objects.equals(calculateMD5(), getMD5());
       } catch (Exception e) {
-        log.error("Fail to calculate the MD5. file={}", this, e);
         return false;
       }
     }

arduino-core/src/cc/arduino/utils/network/HttpConnectionManager.java

@@ -31,9 +31,6 @@
 
 import cc.arduino.net.CustomProxySelector;
 import org.apache.commons.codec.binary.Base64;
-import org.apache.commons.lang3.StringUtils;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import processing.app.BaseNoGui;
 import processing.app.PreferencesData;
 
@@ -47,7 +44,6 @@
 import java.util.function.Consumer;
 
 public class HttpConnectionManager {
-  private static Logger log = LogManager.getLogger(HttpConnectionManager.class);
   private static final String userAgent;
   private static final int connectTimeout;
   private static final int maxRedirectNumber;
@@ -69,23 +65,17 @@ public class HttpConnectionManager {
     userAgent = PreferencesData.get("http.user_agent", defaultUserAgent);
     int connectTimeoutFromConfig = 5000;
     try {
-      connectTimeoutFromConfig =
-        Integer.parseInt(
-          PreferencesData.get("http.connection_timeout_ms", "5000"));
+      connectTimeoutFromConfig = PreferencesData.getInteger("http.connection_timeout_ms", 5000);
     } catch (NumberFormatException e) {
-      log.warn(
-        "Cannot parse the http.connection_timeout configuration switch to default {} milliseconds", connectTimeoutFromConfig, e.getCause());
+      System.err.println("Error parsing http.connection_timeout_ms config: " + e.getMessage());
     }
     connectTimeout = connectTimeoutFromConfig;
     // Set by default 20 max redirect to follow
     int maxRedirectNumberConfig = 20;
     try {
-      maxRedirectNumberConfig =
-        Integer.parseInt(
-          PreferencesData.get("http.max_redirect_number", "20"));
+      maxRedirectNumberConfig = PreferencesData.getInteger("http.max_redirect_number", 20);
     } catch (NumberFormatException e) {
-      log.warn(
-        "Cannot parse the http.max_redirect_number configuration switch to default {}", maxRedirectNumberConfig, e.getCause());
+      System.err.println("Error parsing http.max_redirect_number config: " + e.getMessage());
     }
     maxRedirectNumber = maxRedirectNumberConfig;
   }
@@ -116,18 +106,13 @@ public HttpURLConnection makeConnection()
   private HttpURLConnection makeConnection(URL requestURL, int movedTimes,
                                            Consumer<HttpURLConnection> beforeConnection) throws IOException, URISyntaxException, ScriptException, NoSuchMethodException {
     if (movedTimes > maxRedirectNumber) {
-      log.warn("Too many redirect " + requestURL);
       throw new IOException("Too many redirect " + requestURL);
     }
 
-    Proxy proxy = new CustomProxySelector(PreferencesData.getMap())
-      .getProxyFor(requestURL.toURI());
-    log.debug("Using proxy {}", proxy);
+    Proxy proxy = new CustomProxySelector(PreferencesData.getMap()).getProxyFor(requestURL.toURI());
 
-    final String requestId = UUID.randomUUID().toString()
-      .toUpperCase().replace("-", "").substring(0, 16);
-    HttpURLConnection connection = (HttpURLConnection) requestURL
-      .openConnection(proxy);
+    final String requestId = UUID.randomUUID().toString().toUpperCase().replace("-", "").substring(0, 16);
+    HttpURLConnection connection = (HttpURLConnection) requestURL.openConnection(proxy);
 
     // see https://github.com/arduino/Arduino/issues/10264
     // Workaround for https://bugs.openjdk.java.net/browse/JDK-8163921
@@ -150,19 +135,11 @@ private HttpURLConnection makeConnection(URL requestURL, int movedTimes,
     beforeConnection.accept(connection);
 
     // Connect
-    log.info("Connect to {}, method={}, request id={}", requestURL, connection.getRequestMethod(), requestId);
-
     connection.connect();
     int resp = connection.getResponseCode();
-    log.info("Request complete URL=\"{}\", method={}, response code={}, request id={}, headers={}",
-      requestURL, connection.getRequestMethod(), resp, requestId, StringUtils.join(connection.getHeaderFields()));
-
-    if (resp == HttpURLConnection.HTTP_MOVED_PERM
-      || resp == HttpURLConnection.HTTP_MOVED_TEMP) {
 
+    if (resp == HttpURLConnection.HTTP_MOVED_PERM || resp == HttpURLConnection.HTTP_MOVED_TEMP) {
       URL newUrl = new URL(connection.getHeaderField("Location"));
-      log.info("The response code was a 301,302 so try again with the new URL " + newUrl);
-
       return this.makeConnection(newUrl, movedTimes + 1, beforeConnection);
     }
 

arduino-core/src/processing/app/Platform.java

@@ -52,7 +52,6 @@
  * know if name is proper Java package syntax.)
  */
 public class Platform {
-  // DO NOT USE log4j here otherwise the root path of the logs will no be initialize correctly
   /**
    * Set the default L & F. While I enjoy the bounty of the sixteen possible
    * exception types that this UIManager method might throw, I feel that in

arduino-core/src/processing/app/helpers/BoardCloudResolver.java

@@ -32,8 +32,6 @@
 import cc.arduino.utils.network.HttpConnectionManager;
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import processing.app.BaseNoGui;
 import processing.app.I18n;
 import processing.app.debug.TargetBoard;
@@ -48,7 +46,6 @@
 import static processing.app.I18n.tr;
 
 public class BoardCloudResolver {
-  private static Logger log = LogManager.getLogger(BoardCloudResolver.class);
 
   public synchronized void getBoardBy(String vid, String pid) {
     // this method is less useful in Windows < WIN10 since you need drivers to be already installed
@@ -61,12 +58,10 @@ public synchronized void getBoardBy(String vid, String pid) {
         .makeConnection();
       int code = httpConnection.getResponseCode();
       if (code == 404) {
-        log.warn("Fail to get the Vid Pid information from the builder response code={}", code);
         return;
       }
       InputStream is = httpConnection.getInputStream();
       BoardCloudAPIid board = mapper.readValue(is, BoardCloudAPIid.class);
-      log.info("Board info from the cloud {}", board);
       // Launch a popup with a link to boardmanager#board.getName()
       // replace spaces with &
       String realBoardName = board.getName().replaceAll("\\(.*?\\)", "").trim();
@@ -76,8 +71,6 @@ public synchronized void getBoardBy(String vid, String pid) {
     } catch (Exception e) {
       // No connection no problem, fail silently
       //e.printStackTrace();
-      log.warn("Error during get board information by vid, pid", e);
-
     }
   }
 

build/windows/launcher/config.xml

@@ -43,8 +43,6 @@
     <cp>%EXEDIR%/lib/java-semver-0.8.0.jar</cp>
     <cp>%EXEDIR%/lib/jmdns-3.5.5.jar</cp>
     <cp>%EXEDIR%/lib/jtouchbar-1.0.0.jar</cp>
-    <cp>%EXEDIR%/lib/log4j-api-2.16.0.jar</cp>
-    <cp>%EXEDIR%/lib/log4j-core-2.16.0.jar</cp>
     <cp>%EXEDIR%/lib/slf4j-simple-1.7.22.jar</cp>
     <cp>%EXEDIR%/lib/slf4j-api-1.7.22.jar</cp>
     <cp>%EXEDIR%/lib/jna-4.2.2.jar</cp>

build/windows/launcher/config_debug.xml

@@ -43,8 +43,6 @@
     <cp>%EXEDIR%/lib/java-semver-0.8.0.jar</cp>
     <cp>%EXEDIR%/lib/jmdns-3.5.5.jar</cp>
     <cp>%EXEDIR%/lib/jtouchbar-1.0.0.jar</cp>
-    <cp>%EXEDIR%/lib/log4j-api-2.16.0.jar</cp>
-    <cp>%EXEDIR%/lib/log4j-core-2.16.0.jar</cp>
     <cp>%EXEDIR%/lib/slf4j-simple-1.7.22.jar</cp>
     <cp>%EXEDIR%/lib/slf4j-api-1.7.22.jar</cp>
     <cp>%EXEDIR%/lib/jna-4.2.2.jar</cp>