diff --git a/app/src/cc/arduino/contributions/BuiltInCoreIsNewerCheck.java b/app/src/cc/arduino/contributions/BuiltInCoreIsNewerCheck.java
index 800756c19..3dcda9272 100644
--- a/app/src/cc/arduino/contributions/BuiltInCoreIsNewerCheck.java
+++ b/app/src/cc/arduino/contributions/BuiltInCoreIsNewerCheck.java
@@ -33,14 +33,12 @@ import cc.arduino.contributions.filters.BuiltInPredicate;
 import cc.arduino.contributions.filters.InstalledPredicate;
 import cc.arduino.contributions.packages.ContributedPackage;
 import cc.arduino.contributions.packages.ContributedPlatform;
-import cc.arduino.view.Event;
 import processing.app.Base;
 import processing.app.BaseNoGui;
 import processing.app.I18n;
 import processing.app.PreferencesData;
 
 import javax.swing.*;
-import java.awt.event.ActionEvent;
 import java.util.Collection;
 import java.util.List;
 import java.util.stream.Collectors;
diff --git a/app/src/cc/arduino/view/preferences/Preferences.java b/app/src/cc/arduino/view/preferences/Preferences.java
index eb4078982..ffeaf53dc 100644
--- a/app/src/cc/arduino/view/preferences/Preferences.java
+++ b/app/src/cc/arduino/view/preferences/Preferences.java
@@ -48,7 +48,13 @@ import static processing.app.I18n.tr;
 public class Preferences extends javax.swing.JDialog {
 
   private final Language[] languages;
+
+  // Languages that are not translated at least to 65% are
+  // kept in the "missingLanguages" array until they have enough
+  // translated strings.
+  @SuppressWarnings("unused")
   private final Language[] missingLanguages;
+
   private final WarningItem[] warningItems;
   private final Base base;
 
diff --git a/app/src/processing/app/AbstractMonitor.java b/app/src/processing/app/AbstractMonitor.java
index 976041eaf..e8cc0df75 100644
--- a/app/src/processing/app/AbstractMonitor.java
+++ b/app/src/processing/app/AbstractMonitor.java
@@ -13,7 +13,6 @@ import java.awt.event.WindowEvent;
 @SuppressWarnings("serial")
 public abstract class AbstractMonitor extends JFrame implements ActionListener {
 
-  private boolean monitorEnabled;
   private boolean closed;
 
   private StringBuffer updateBuffer;
@@ -78,7 +77,6 @@ public abstract class AbstractMonitor extends JFrame implements ActionListener {
     updateTimer = new Timer(33, this);  // redraw serial monitor at 30 Hz
     updateTimer.start();
 
-    monitorEnabled = true;
     closed = false;
   }
 
@@ -86,7 +84,6 @@ public abstract class AbstractMonitor extends JFrame implements ActionListener {
 
   public void enableWindow(boolean enable) {
     onEnableWindow(enable);
-    monitorEnabled = enable;
   }
 
   protected abstract void onEnableWindow(boolean enable);
diff --git a/app/src/processing/app/Base.java b/app/src/processing/app/Base.java
index 2ef29d54e..3990aa07e 100644
--- a/app/src/processing/app/Base.java
+++ b/app/src/processing/app/Base.java
@@ -748,7 +748,7 @@ public class Base {
     try {
       File file = createNewUntitled();
       if (file != null) {
-        Editor editor = handleOpen(file, true);
+        handleOpen(file, true);
       }
 
     } catch (IOException e) {
diff --git a/app/src/processing/app/EditorLineStatus.java b/app/src/processing/app/EditorLineStatus.java
index 253f3919d..b1ad221df 100644
--- a/app/src/processing/app/EditorLineStatus.java
+++ b/app/src/processing/app/EditorLineStatus.java
@@ -24,13 +24,10 @@ package processing.app;
 
 import java.awt.*;
 import java.awt.geom.Rectangle2D;
-import java.util.Map;
-
 import javax.swing.JComponent;
 
 import processing.app.helpers.OSUtils;
 import processing.app.helpers.PreferencesMap;
-import processing.app.syntax.SketchTextArea;
 
 
 /**
diff --git a/app/src/processing/app/Preferences.java b/app/src/processing/app/Preferences.java
index 8dc00c137..d53f5b0d8 100644
--- a/app/src/processing/app/Preferences.java
+++ b/app/src/processing/app/Preferences.java
@@ -21,12 +21,8 @@
 
 package processing.app;
 
-import processing.app.helpers.PreferencesHelper;
 import processing.app.helpers.PreferencesMap;
 
-import java.awt.*;
-import java.io.File;
-
 
 /**
  * Storage class for user preferences and environment settings.
diff --git a/app/test/processing/app/AutoformatProducesOneUndoActionTest.java b/app/test/processing/app/AutoformatProducesOneUndoActionTest.java
index 8c5243a66..33314b4a1 100644
--- a/app/test/processing/app/AutoformatProducesOneUndoActionTest.java
+++ b/app/test/processing/app/AutoformatProducesOneUndoActionTest.java
@@ -34,7 +34,6 @@ import org.junit.Test;
 import processing.app.helpers.SketchTextAreaFixture;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
 
 public class AutoformatProducesOneUndoActionTest extends AbstractGUITest {
 
diff --git a/app/test/processing/app/macosx/SystemProfilerParserTest.java b/app/test/processing/app/macosx/SystemProfilerParserTest.java
index 1476822c4..2fce4d00f 100644
--- a/app/test/processing/app/macosx/SystemProfilerParserTest.java
+++ b/app/test/processing/app/macosx/SystemProfilerParserTest.java
@@ -33,50 +33,55 @@ import org.junit.Test;
 import processing.app.TestHelper;
 
 import static org.junit.Assert.assertEquals;
+import static processing.app.macosx.SystemProfilerParser.extractVIDAndPID;
+
+import java.io.IOException;
+import java.io.InputStream;
 
 public class SystemProfilerParserTest {
 
   @Test
   public void shouldCorrectlyParse() throws Exception {
-    String output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output.txt"));
+    String output = getFileContent("system_profiler_output.txt");
+    assertEquals("0X2341_0X0044", extractVIDAndPID(output, "/dev/cu.usbmodemfa121"));
+    assertEquals("0X2341_0X0044", extractVIDAndPID(output, "/dev/tty.usbmodemfa121"));
 
-    assertEquals("0X2341_0X0044", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbmodemfa121"));
-    assertEquals("0X2341_0X0044", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodemfa121"));
+    output = getFileContent("system_profiler_output2.txt");
+    assertEquals("0X2341_0X8036", extractVIDAndPID(output, "/dev/cu.usbmodemfd131"));
+    assertEquals("0X2341_0X8036", extractVIDAndPID(output, "/dev/tty.usbmodemfd131"));
 
-    output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output2.txt"));
+    output = getFileContent("system_profiler_output3.txt");
+    assertEquals("0X2341_0X8041", extractVIDAndPID(output, "/dev/cu.usbmodemfd121"));
+    assertEquals("0X2341_0X8041", extractVIDAndPID(output, "/dev/tty.usbmodemfd121"));
 
-    assertEquals("0X2341_0X8036", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbmodemfd131"));
-    assertEquals("0X2341_0X8036", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodemfd131"));
+    output = getFileContent("system_profiler_output4.txt");
+    assertEquals("0X2341_0X0041", extractVIDAndPID(output, "/dev/cu.usbmodem411"));
+    assertEquals("0X2341_0X0041", extractVIDAndPID(output, "/dev/tty.usbmodem411"));
 
-    output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output3.txt"));
+    output = getFileContent("system_profiler_output5.txt");
+    assertEquals("0X2341_0X8041", extractVIDAndPID(output, "/dev/cu.usbmodem621"));
+    assertEquals("0X2341_0X8041", extractVIDAndPID(output, "/dev/tty.usbmodem621"));
 
-    assertEquals("0X2341_0X8041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbmodemfd121"));
-    assertEquals("0X2341_0X8041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodemfd121"));
+    output = getFileContent("system_profiler_output6.txt");
+    assertEquals("0X2341_0X8041", extractVIDAndPID(output, "/dev/cu.usbmodem1421"));
+    assertEquals("0X2341_0X8041", extractVIDAndPID(output, "/dev/tty.usbmodem1421"));
 
-    output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output4.txt"));
+    output = getFileContent("system_profiler_output7.txt");
+    assertEquals("0X2341_0X8036", extractVIDAndPID(output, "/dev/cu.usbmodem24131"));
+    assertEquals("0X2341_0X8036", extractVIDAndPID(output, "/dev/tty.usbmodem24131"));
+    assertEquals("0X0403_0X6015", extractVIDAndPID(output, "/dev/cu.usbserial-DN0031EV"));
+    assertEquals("0X0403_0X6015", extractVIDAndPID(output, "/dev/tty.usbserial-DN0031EV"));
 
-    assertEquals("0X2341_0X0041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbmodem411"));
-    assertEquals("0X2341_0X0041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodem411"));
+    output = getFileContent("system_profiler_output8.txt");
+    assertEquals("0X03EB_0X2157", extractVIDAndPID(output, "/dev/tty.usbmodemfd132"));
 
-    output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output5.txt"));
+    // OSX El Capitan
+    output = getFileContent("system_profiler_output9.txt");
+    assertEquals("0X2341_0X8036", extractVIDAndPID(output, "/dev/tty.usbmodemFA121"));
+  }
 
-    assertEquals("0X2341_0X8041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbmodem621"));
-    assertEquals("0X2341_0X8041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodem621"));
-
-    output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output6.txt"));
-
-    assertEquals("0X2341_0X8041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbmodem1421"));
-    assertEquals("0X2341_0X8041", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodem1421"));
-
-    output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output7.txt"));
-
-    assertEquals("0X2341_0X8036", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbmodem24131"));
-    assertEquals("0X2341_0X8036", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodem24131"));
-    assertEquals("0X0403_0X6015", new SystemProfilerParser().extractVIDAndPID(output, "/dev/cu.usbserial-DN0031EV"));
-    assertEquals("0X0403_0X6015", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbserial-DN0031EV"));
-
-    output = TestHelper.inputStreamToString(SystemProfilerParserTest.class.getResourceAsStream("system_profiler_output8.txt"));
-
-    assertEquals("0X03EB_0X2157", new SystemProfilerParser().extractVIDAndPID(output, "/dev/tty.usbmodemfd132"));
+  private String getFileContent(String filename) throws IOException {
+    InputStream resource = SystemProfilerParserTest.class.getResourceAsStream(filename);
+    return TestHelper.inputStreamToString(resource);
   }
 }
diff --git a/app/test/processing/app/macosx/system_profiler_output9.txt b/app/test/processing/app/macosx/system_profiler_output9.txt
new file mode 100644
index 000000000..ca82cedd4
--- /dev/null
+++ b/app/test/processing/app/macosx/system_profiler_output9.txt
@@ -0,0 +1,117 @@
+USB:
+
+    USB 2.0 Bus:
+
+      Host Controller Driver: AppleUSBEHCIPCI
+      PCI Device ID: 0x1c2d 
+      PCI Revision ID: 0x0005 
+      PCI Vendor ID: 0x8086 
+
+        Hub:
+
+          Product ID: 0x2513
+          Vendor ID: 0x0424  (SMSC)
+          Version: b.b3
+          Speed: Up to 480 Mb/sec
+          Location ID: 0xfa100000 / 1
+          Current Available (mA): 1000
+          Current Required (mA): 2
+          Extra Operating Current (mA): 0
+          Built-In: Yes
+
+            Arduino Leonardo:
+
+              Product ID: 0x8036
+              Vendor ID: 0x2341
+              Version: 1.00
+              Speed: Up to 12 Mb/sec
+              Manufacturer: Arduino LLC
+              Location ID: 0xfa120000 / 3
+              Current Available (mA): 1000
+              Current Required (mA): 500
+              Extra Operating Current (mA): 0
+
+            BRCM20702 Hub:
+
+              Product ID: 0x4500
+              Vendor ID: 0x0a5c  (Broadcom Corp.)
+              Version: 1.00
+              Speed: Up to 12 Mb/sec
+              Manufacturer: Apple Inc.
+              Location ID: 0xfa110000 / 4
+              Current Available (mA): 1000
+              Current Required (mA): 94
+              Extra Operating Current (mA): 0
+              Built-In: Yes
+
+                Bluetooth USB Host Controller:
+
+                  Product ID: 0x8281
+                  Vendor ID: 0x05ac  (Apple Inc.)
+                  Version: 1.51
+                  Speed: Up to 12 Mb/sec
+                  Manufacturer: Apple Inc.
+                  Location ID: 0xfa113000 / 2
+                  Current Available (mA): 1000
+                  Current Required (mA): 0
+                  Extra Operating Current (mA): 0
+                  Built-In: Yes
+
+    USB 2.0 Bus:
+
+      Host Controller Driver: AppleUSBEHCIPCI
+      PCI Device ID: 0x1c26 
+      PCI Revision ID: 0x0005 
+      PCI Vendor ID: 0x8086 
+
+        Hub:
+
+          Product ID: 0x2513
+          Vendor ID: 0x0424  (SMSC)
+          Version: b.b3
+          Speed: Up to 480 Mb/sec
+          Location ID: 0xfd100000 / 1
+          Current Available (mA): 1000
+          Current Required (mA): 2
+          Extra Operating Current (mA): 0
+          Built-In: Yes
+
+            USB Keyboard:
+
+              Product ID: 0x2000
+              Vendor ID: 0x040b  (Weltrend Semiconductor)
+              Version: 2.05
+              Speed: Up to 1.5 Mb/sec
+              Manufacturer: Generic
+              Location ID: 0xfd130000 / 4
+              Current Available (mA): 1000
+              Current Required (mA): 100
+              Extra Operating Current (mA): 0
+
+            USB OPTICAL MOUSE:
+
+              Product ID: 0x2510
+              Vendor ID: 0x093a  (Pixart Imaging, Inc.)
+              Version: 1.00
+              Speed: Up to 1.5 Mb/sec
+              Manufacturer: PIXART
+              Location ID: 0xfd120000 / 3
+              Current Available (mA): 1000
+              Current Required (mA): 100
+              Extra Operating Current (mA): 0
+
+            IR Receiver:
+
+              Product ID: 0x8242
+              Vendor ID: 0x05ac  (Apple Inc.)
+              Version: 0.16
+              Speed: Up to 1.5 Mb/sec
+              Manufacturer: Apple Computer, Inc.
+              Location ID: 0xfd110000 / 2
+              Current Available (mA): 1000
+              Current Required (mA): 100
+              Extra Operating Current (mA): 0
+              Built-In: Yes
+
+
+
diff --git a/app/test/processing/app/syntax/PdeKeywordsTest.java b/app/test/processing/app/syntax/PdeKeywordsTest.java
index 29c6b4675..f59deac21 100644
--- a/app/test/processing/app/syntax/PdeKeywordsTest.java
+++ b/app/test/processing/app/syntax/PdeKeywordsTest.java
@@ -32,8 +32,6 @@ package processing.app.syntax;
 import org.fife.ui.rsyntaxtextarea.TokenTypes;
 import org.junit.Test;
 import processing.app.AbstractWithPreferencesTest;
-import processing.app.BaseNoGui;
-
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
 
diff --git a/arduino-core/src/cc/arduino/contributions/GPGDetachedSignatureVerifier.java b/arduino-core/src/cc/arduino/contributions/GPGDetachedSignatureVerifier.java
index a09bd12fd..216c6dbcb 100644
--- a/arduino-core/src/cc/arduino/contributions/GPGDetachedSignatureVerifier.java
+++ b/arduino-core/src/cc/arduino/contributions/GPGDetachedSignatureVerifier.java
@@ -97,13 +97,13 @@ public class GPGDetachedSignatureVerifier extends SignatureVerifier {
   private PGPPublicKey readPublicKey(InputStream input, String keyId) throws IOException, PGPException {
     PGPPublicKeyRingCollection pgpPub = new PGPPublicKeyRingCollection(PGPUtil.getDecoderStream(input), new BcKeyFingerprintCalculator());
 
-    Iterator keyRingIter = pgpPub.getKeyRings();
+    Iterator<PGPPublicKeyRing> keyRingIter = pgpPub.getKeyRings();
     while (keyRingIter.hasNext()) {
-      PGPPublicKeyRing keyRing = (PGPPublicKeyRing) keyRingIter.next();
+      PGPPublicKeyRing keyRing = keyRingIter.next();
 
-      Iterator keyIter = keyRing.getPublicKeys();
+      Iterator<PGPPublicKey> keyIter = keyRing.getPublicKeys();
       while (keyIter.hasNext()) {
-        PGPPublicKey key = (PGPPublicKey) keyIter.next();
+        PGPPublicKey key = keyIter.next();
 
         if (Long.toHexString(key.getKeyID()).toUpperCase().endsWith(keyId)) {
           return key;
diff --git a/arduino-core/src/cc/arduino/contributions/SignatureVerificationFailedException.java b/arduino-core/src/cc/arduino/contributions/SignatureVerificationFailedException.java
index 32f7d4d1d..77136cb46 100644
--- a/arduino-core/src/cc/arduino/contributions/SignatureVerificationFailedException.java
+++ b/arduino-core/src/cc/arduino/contributions/SignatureVerificationFailedException.java
@@ -33,6 +33,7 @@ import processing.app.I18n;
 
 import static processing.app.I18n.tr;
 
+@SuppressWarnings("serial")
 public class SignatureVerificationFailedException extends Exception {
 
   public SignatureVerificationFailedException(String filename) {
diff --git a/arduino-core/src/cc/arduino/utils/ArchiveExtractor.java b/arduino-core/src/cc/arduino/utils/ArchiveExtractor.java
index d892e9ec2..1fc007997 100644
--- a/arduino-core/src/cc/arduino/utils/ArchiveExtractor.java
+++ b/arduino-core/src/cc/arduino/utils/ArchiveExtractor.java
@@ -164,7 +164,7 @@ public class ArchiveExtractor {
           while (stripPath > 0) {
             slash = name.indexOf("/", slash);
             if (slash == -1) {
-              throw new IOException("Invalid archive: it must contains a single root folder");
+              throw new IOException("Invalid archive: it must contain a single root folder");
             }
             slash++;
             stripPath--;
@@ -174,7 +174,7 @@ public class ArchiveExtractor {
 
         // Strip the common path prefix when requested
         if (!name.startsWith(pathPrefix)) {
-          throw new IOException("Invalid archive: it must contains a single root folder while file " + name + " is outside " + pathPrefix);
+          throw new IOException("Invalid archive: it must contain a single root folder while file " + name + " is outside " + pathPrefix);
         }
         name = name.substring(pathPrefix.length());
         if (name.isEmpty()) {
@@ -185,7 +185,7 @@ public class ArchiveExtractor {
         File outputLinkedFile = null;
         if (isLink) {
           if (!linkName.startsWith(pathPrefix)) {
-            throw new IOException("Invalid archive: it must contains a single root folder while file " + linkName + " is outside " + pathPrefix);
+            throw new IOException("Invalid archive: it must contain a single root folder while file " + linkName + " is outside " + pathPrefix);
           }
           linkName = linkName.substring(pathPrefix.length());
           outputLinkedFile = new File(destFolder, linkName);
diff --git a/arduino-core/src/processing/app/SketchCode.java b/arduino-core/src/processing/app/SketchCode.java
index 0e3f26560..54d070775 100644
--- a/arduino-core/src/processing/app/SketchCode.java
+++ b/arduino-core/src/processing/app/SketchCode.java
@@ -53,11 +53,6 @@ public class SketchCode {
 
   private boolean modified;
 
-  /**
-   * where this code starts relative to the concat'd code
-   */
-  private int preprocOffset;
-
   private Object metadata;
 
   public SketchCode(File file) {
@@ -190,16 +185,6 @@ public class SketchCode {
   }
 
 
-  public void setPreprocOffset(int preprocOffset) {
-    this.preprocOffset = preprocOffset;
-  }
-
-
-  public void addPreprocOffset(int extra) {
-    preprocOffset += extra;
-  }
-
-
   /**
    * Load this piece of code from a file.
    */
diff --git a/arduino-core/src/processing/app/macosx/Platform.java b/arduino-core/src/processing/app/macosx/Platform.java
index a7a6a75bb..31118c47f 100644
--- a/arduino-core/src/processing/app/macosx/Platform.java
+++ b/arduino-core/src/processing/app/macosx/Platform.java
@@ -172,7 +172,7 @@ public class Platform extends processing.app.Platform {
     }
 
     try {
-      String vidPid = new SystemProfilerParser().extractVIDAndPID(devicesListOutput, serial);
+      String vidPid = SystemProfilerParser.extractVIDAndPID(devicesListOutput, serial);
 
       if (vidPid == null) {
         return super.resolveDeviceAttachedTo(serial, packages, devicesListOutput);
diff --git a/arduino-core/src/processing/app/macosx/SystemProfilerParser.java b/arduino-core/src/processing/app/macosx/SystemProfilerParser.java
index 2e1d77462..73f692bf3 100644
--- a/arduino-core/src/processing/app/macosx/SystemProfilerParser.java
+++ b/arduino-core/src/processing/app/macosx/SystemProfilerParser.java
@@ -19,19 +19,12 @@ public class SystemProfilerParser {
   private static final String DEV_TTY_USBMODEM = "/dev/tty.usbmodem";
   private static final String DEV_CU_USBMODEM = "/dev/cu.usbmodem";
 
-  private final Pattern vidRegex;
-  private final Pattern serialNumberRegex;
-  private final Pattern locationRegex;
-  private final Pattern pidRegex;
+  private static final Pattern serialNumberRegex = Pattern.compile("^Serial Number: (.+)$");
+  private static final Pattern locationRegex = Pattern.compile("^Location ID: (.+)$");
+  private static final Pattern pidRegex = Pattern.compile("^Product ID: (.+)$");
+  private static final Pattern vidRegex = Pattern.compile("^Vendor ID: (.+)$");
 
-  public SystemProfilerParser() {
-    this.serialNumberRegex = Pattern.compile("^Serial Number: (.+)$");
-    this.locationRegex = Pattern.compile("^Location ID: (.+)$");
-    this.pidRegex = Pattern.compile("^Product ID: (.+)$");
-    this.vidRegex = Pattern.compile("^Vendor ID: (.+)$");
-  }
-
-  public String extractVIDAndPID(String output, String serial) throws IOException {
+  public synchronized static String extractVIDAndPID(String output, String serial) throws IOException {
     BufferedReader reader = new BufferedReader(new StringReader(output));
 
     String devicePrefix;
@@ -80,7 +73,7 @@ public class SystemProfilerParser {
           String computedDevicePath = device.get(DEVICE_PATH);
           String computedDevicePathMinusChar = computedDevicePath.substring(0, computedDevicePath.length() - 1);
           String serialMinusChar = serial.substring(0, serial.length() - 1);
-          if (computedDevicePath.equals(serial) || computedDevicePathMinusChar.equals(serialMinusChar)) {
+          if (computedDevicePath.equalsIgnoreCase(serial) || computedDevicePathMinusChar.equalsIgnoreCase(serialMinusChar)) {
             return (device.get(VID) + "_" + device.get(PID)).toUpperCase();
           }
         }
diff --git a/build/linux/dist/arduino b/build/linux/dist/arduino
index 178766745..d4e7f1965 100755
--- a/build/linux/dist/arduino
+++ b/build/linux/dist/arduino
@@ -3,9 +3,9 @@
 APPDIR="$(dirname -- "$(readlink -f -- "${0}")" )"
 
 for LIB in \
-    $APPDIR/java/lib/rt.jar \
-    $APPDIR/java/lib/tools.jar \
-    $APPDIR/lib/*.jar \
+    "$APPDIR"/java/lib/rt.jar \
+    "$APPDIR"/java/lib/tools.jar \
+    "$APPDIR"/lib/*.jar \
     ;
 do
     CLASSPATH="${CLASSPATH}:${LIB}"
@@ -17,18 +17,19 @@ export LD_LIBRARY_PATH
 
 export PATH="${APPDIR}/java/bin:${PATH}"
 
-if [[ "$@" == *"--upload"* || "$@" == *"--verify"* || "$@" == *"--get-pref"* || "$@" == *"--install-board"* || "$@" == *"--install-library"* ]] ; then
-	SPLASH=""
-else
-	SPLASH="-splash:$APPDIR/lib/splash.png"
-fi
-
 export JAVA_TOOL_OPTIONS=`echo $JAVA_TOOL_OPTIONS | sed 's|-javaagent:/usr/share/java/jayatanaag.jar||g'`
 
 JAVA=java
-if [ -x $APPDIR/java/bin/java ]; then
+if [ -x "$APPDIR/java/bin/java" ]; then
   JAVA=$APPDIR/java/bin/java
 fi
 
-$JAVA -DAPP_DIR="$APPDIR" -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel $SPLASH processing.app.Base "$@"
+# Collect options to java in an array, to properly handle whitespace in options
+JAVA_OPTIONS=("-DAPP_DIR=$APPDIR" "-Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel")
+
+if [[ "$@" != *"--upload"* && "$@" != *"--verify"* && "$@" != *"--get-pref"* && "$@" != *"--install-board"* && "$@" != *"--install-library"* ]] ; then
+	JAVA_OPTIONS+=("-splash:$APPDIR/lib/splash.png")
+fi
+
+"$JAVA" "${JAVA_OPTIONS[@]}" processing.app.Base "$@"
 
diff --git a/hardware/arduino/avr/libraries/HID/HID.cpp b/hardware/arduino/avr/libraries/HID/HID.cpp
index 1a432fffd..ce9a6a08e 100644
--- a/hardware/arduino/avr/libraries/HID/HID.cpp
+++ b/hardware/arduino/avr/libraries/HID/HID.cpp
@@ -54,6 +54,11 @@ int HID_::getDescriptor(USBSetup& setup)
 			return -1;
 		total += res;
 	}
+	
+	// Reset the protocol on reenumeration. Normally the host should not assume the state of the protocol
+	// due to the USB specs, but Windows and Linux just assumes its in report mode.
+	protocol = HID_REPORT_PROTOCOL;
+	
 	return total;
 }
 
@@ -140,7 +145,7 @@ bool HID_::setup(USBSetup& setup)
 
 HID_::HID_(void) : PluggableUSBModule(1, 1, epType),
                    rootNode(NULL), descriptorSize(0),
-                   protocol(1), idle(1)
+                   protocol(HID_REPORT_PROTOCOL), idle(1)
 {
 	epType[0] = EP_TYPE_INTERRUPT_IN;
 	PluggableUSB().plug(this);