diff --git a/src/main/java/fr/xephi/authme/command/CommandService.java b/src/main/java/fr/xephi/authme/command/CommandService.java
index 95ddb563..f88196cc 100644
--- a/src/main/java/fr/xephi/authme/command/CommandService.java
+++ b/src/main/java/fr/xephi/authme/command/CommandService.java
@@ -34,6 +34,7 @@ public class CommandService {
     private HelpProvider helpProvider;
     @Inject
     private CommandMapper commandMapper;
+    @SuppressWarnings("unused")
     @Inject
     private PasswordSecurity passwordSecurity;
     @Inject
diff --git a/src/main/java/fr/xephi/authme/datasource/MySQL.java b/src/main/java/fr/xephi/authme/datasource/MySQL.java
index 5182b859..4f6317bc 100644
--- a/src/main/java/fr/xephi/authme/datasource/MySQL.java
+++ b/src/main/java/fr/xephi/authme/datasource/MySQL.java
@@ -424,6 +424,7 @@ public class MySQL implements DataSource {
                 rs.close();
                 pst.close();
             } else if (hashAlgorithm == HashAlgorithm.WORDPRESS) {
+                // NOTE: Eclipse says pst should be closed HERE, but it's a bug, we already close it above. -sgdc3
                 pst = con.prepareStatement("SELECT " + col.ID + " FROM " + tableName + " WHERE " + col.NAME + "=?;");
                 pst.setString(1, auth.getNickname());
                 rs = pst.executeQuery();
@@ -500,6 +501,7 @@ public class MySQL implements DataSource {
                 rs.close();
                 pst.close();
             } else if (hashAlgorithm == HashAlgorithm.XFBCRYPT) {
+                // NOTE: Eclipse says pst should be closed HERE, but it's a bug, we already close it above. -sgdc3
                 pst = con.prepareStatement("SELECT " + col.ID + " FROM " + tableName + " WHERE " + col.NAME + "=?;");
                 pst.setString(1, auth.getNickname());
                 rs = pst.executeQuery();
diff --git a/src/main/java/fr/xephi/authme/listener/AuthMePlayerListener.java b/src/main/java/fr/xephi/authme/listener/AuthMePlayerListener.java
index a0fa4011..fb44b4c3 100644
--- a/src/main/java/fr/xephi/authme/listener/AuthMePlayerListener.java
+++ b/src/main/java/fr/xephi/authme/listener/AuthMePlayerListener.java
@@ -407,12 +407,6 @@ public class AuthMePlayerListener implements Listener {
         plugin.getManagement().performQuit(player, true);
     }
 
-    /*
-     * <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
-     * Note #360: npc status can be used to bypass security!!!
-     * <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
-     */
-
     @EventHandler(ignoreCancelled = true, priority = EventPriority.LOWEST)
     public void onPlayerPickupItem(PlayerPickupItemEvent event) {
         if (shouldCancelEvent(event)) {
diff --git a/src/main/java/fr/xephi/authme/mail/SendMailSSL.java b/src/main/java/fr/xephi/authme/mail/SendMailSSL.java
index d8332602..88d57d9a 100644
--- a/src/main/java/fr/xephi/authme/mail/SendMailSSL.java
+++ b/src/main/java/fr/xephi/authme/mail/SendMailSSL.java
@@ -152,7 +152,6 @@ public class SendMailSSL {
                 } else {
                     email.setStartTLSEnabled(true);
                     email.setStartTLSRequired(true);
-                    email.setTLS(true);
                 }
                 break;
             case 25:
@@ -161,7 +160,7 @@ public class SendMailSSL {
                 break;
             case 465:
                 email.setSslSmtpPort(Integer.toString(port));
-                email.setSSL(true);
+                email.setSSLOnConnect(true);
                 break;
             default:
                 email.setStartTLSEnabled(true);
diff --git a/src/main/java/fr/xephi/authme/permission/PermissionsManager.java b/src/main/java/fr/xephi/authme/permission/PermissionsManager.java
index 7dfcd40c..388eed9e 100644
--- a/src/main/java/fr/xephi/authme/permission/PermissionsManager.java
+++ b/src/main/java/fr/xephi/authme/permission/PermissionsManager.java
@@ -346,7 +346,6 @@ public class PermissionsManager implements PermissionsService {
 
             case Z_PERMISSIONS:
                 // zPermissions
-                @SuppressWarnings("deprecation")
                 Map<String, Boolean> perms = zPermissionsService.getPlayerPermissions(player.getWorld().getName(), null, player.getName());
                 if (perms.containsKey(permsNode))
                     return perms.get(permsNode);
@@ -448,7 +447,6 @@ public class PermissionsManager implements PermissionsService {
      *
      * @return The name of the primary permission group. Or null.
      */
-    @SuppressWarnings("deprecation")
     public String getPrimaryGroup(Player player) {
         // If no permissions system is used, return an empty list
         if (!isEnabled())
diff --git a/src/main/java/fr/xephi/authme/security/pbkdf2/BinTools.java b/src/main/java/fr/xephi/authme/security/pbkdf2/BinTools.java
index daadcae8..34bf8aac 100644
--- a/src/main/java/fr/xephi/authme/security/pbkdf2/BinTools.java
+++ b/src/main/java/fr/xephi/authme/security/pbkdf2/BinTools.java
@@ -1,71 +1,62 @@
 package fr.xephi.authme.security.pbkdf2;
 
+/*
+ * Free auxiliary functions. Copyright 2007, 2014, Matthias G&auml;rtner
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+
 /**
- * <p>
- * Free auxiliary functions. Copyright (c) 2007 Matthias G&auml;rtner
- * </p>
- * <p>
- * This library is free software; you can redistribute it and/or modify it under
- * the terms of the GNU Lesser General Public License as published by the Free
- * Software Foundation; either version 2.1 of the License, or (at your option)
- * any later version.
- * </p>
- * <p>
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
- * details.
- * </p>
- * <p>
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- * </p>
- * <p>
- * For Details, see <a
- * href="http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html"
- * >http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html</a>.
- * </p>
+ * Free auxiliary functions
  *
  * @author Matthias G&auml;rtner
- * @version 1.0
  */
 public class BinTools {
-
-    private static final String HEX_CHARS = "0123456789ABCDEF";
-
-    private BinTools() {
-    }
+    public static final String hex = "0123456789ABCDEF";
 
     /**
      * Simple binary-to-hexadecimal conversion.
      *
-     * @param b Input bytes. May be <code>null</code>.
-     *
+     * @param b
+     *            Input bytes. May be <code>null</code>.
      * @return Hexadecimal representation of b. Uppercase A-F, two characters
-     * per byte. Empty string on <code>null</code> input.
+     *         per byte. Empty string on <code>null</code> input.
      */
     public static String bin2hex(final byte[] b) {
         if (b == null) {
             return "";
         }
-        StringBuffer stringBuffer = new StringBuffer(2 * b.length);
-        for (byte aB : b) {
-            int v = (256 + aB) % 256;
-            stringBuffer.append(HEX_CHARS.charAt((v / 16) & 15));
-            stringBuffer.append(HEX_CHARS.charAt((v % 16) & 15));
+        StringBuffer sb = new StringBuffer(2 * b.length);
+        for (int i = 0; i < b.length; i++) {
+            int v = (256 + b[i]) % 256;
+            sb.append(hex.charAt((v / 16) & 15));
+            sb.append(hex.charAt((v % 16) & 15));
         }
-        return stringBuffer.toString();
+        return sb.toString();
     }
 
     /**
      * Convert hex string to array of bytes.
      *
-     * @param s String containing hexadecimal digits. May be <code>null</code>.
-     *          On odd length leading zero will be assumed.
-     *
+     * @param s
+     *            String containing hexadecimal digits. May be <code>null</code>
+     *            . On odd length leading zero will be assumed.
      * @return Array on bytes, non-<code>null</code>.
-     * @throws IllegalArgumentException when string contains non-hex character
+     * @throws IllegalArgumentException
+     *             when string contains non-hex character
      */
     public static byte[] hex2bin(final String s) {
         String m = s;
@@ -88,10 +79,11 @@ public class BinTools {
     /**
      * Convert hex digit to numerical value.
      *
-     * @param c 0-9, a-f, A-F allowed.
-     *
+     * @param c
+     *            0-9, a-f, A-F allowd.
      * @return 0-15
-     * @throws IllegalArgumentException on non-hex character
+     * @throws IllegalArgumentException
+     *             on non-hex character
      */
     public static int hex2bin(char c) {
         if (c >= '0' && c <= '9') {
@@ -106,9 +98,7 @@ public class BinTools {
         throw new IllegalArgumentException("Input string may only contain hex digits, but found '" + c + "'");
     }
 
-    // Note ljacqu 20160313: This appears to be a test method that was present in the third-party source.
-    // We can keep it for troubleshooting in the future.
-    private static void testUtils() {
+    public static void main(String[] args) {
         byte b[] = new byte[256];
         byte bb = 0;
         for (int i = 0; i < 256; i++) {
diff --git a/src/main/java/fr/xephi/authme/util/MigrationService.java b/src/main/java/fr/xephi/authme/util/MigrationService.java
index 7bf028f6..cd9bb382 100644
--- a/src/main/java/fr/xephi/authme/util/MigrationService.java
+++ b/src/main/java/fr/xephi/authme/util/MigrationService.java
@@ -31,7 +31,6 @@ public final class MigrationService {
      * @param dataSource The data source
      * @param authmeSha256 Instance to the AuthMe SHA256 encryption method implementation
      */
-    @SuppressWarnings("deprecation")
     public static void changePlainTextToSha256(NewSetting settings, DataSource dataSource,
                                                SHA256 authmeSha256) {
         if (HashAlgorithm.PLAINTEXT == settings.getProperty(SecuritySettings.PASSWORD_HASH)) {
@@ -62,7 +61,6 @@ public final class MigrationService {
      * @param dataSource The data source
      * @return The converted datasource (SQLite), or null if no migration was necessary
      */
-    @SuppressWarnings("deprecation")
     public static DataSource convertFlatfileToSqlite(NewSetting settings, DataSource dataSource) {
         if (DataSourceType.FILE == settings.getProperty(DatabaseSettings.BACKEND)) {
             ConsoleLogger.showError("FlatFile backend has been detected and is now deprecated; it will be changed "
diff --git a/src/test/java/fr/xephi/authme/command/CommandInitializerTest.java b/src/test/java/fr/xephi/authme/command/CommandInitializerTest.java
index 7c62377f..9eac4f40 100644
--- a/src/test/java/fr/xephi/authme/command/CommandInitializerTest.java
+++ b/src/test/java/fr/xephi/authme/command/CommandInitializerTest.java
@@ -41,6 +41,7 @@ public class CommandInitializerTest {
 
     private static Set<CommandDescription> commands;
 
+    @SuppressWarnings("unchecked")
     @BeforeClass
     public static void initializeCommandManager() {
         AuthMeServiceInitializer initializer = mock(AuthMeServiceInitializer.class);
diff --git a/src/test/java/fr/xephi/authme/events/EventsConsistencyTest.java b/src/test/java/fr/xephi/authme/events/EventsConsistencyTest.java
index d7ba5f74..0f8340d8 100644
--- a/src/test/java/fr/xephi/authme/events/EventsConsistencyTest.java
+++ b/src/test/java/fr/xephi/authme/events/EventsConsistencyTest.java
@@ -75,6 +75,7 @@ public class EventsConsistencyTest {
         return !clazz.isInterface() && !clazz.isEnum() && !Modifier.isAbstract(clazz.getModifiers());
     }
 
+    @SuppressWarnings("unchecked")
     private static Class<? extends Event> getEventClassFromFile(File file) {
         String fileName = file.getPath();
         String className = fileName
diff --git a/src/test/java/fr/xephi/authme/initialization/ConstructorInjectionTest.java b/src/test/java/fr/xephi/authme/initialization/ConstructorInjectionTest.java
index dd21a590..df5493e7 100644
--- a/src/test/java/fr/xephi/authme/initialization/ConstructorInjectionTest.java
+++ b/src/test/java/fr/xephi/authme/initialization/ConstructorInjectionTest.java
@@ -20,6 +20,7 @@ import static org.junit.Assert.assertThat;
  */
 public class ConstructorInjectionTest {
 
+    @SuppressWarnings("unchecked")
     @Test
     public void shouldReturnDependencies() {
         // given
@@ -73,6 +74,7 @@ public class ConstructorInjectionTest {
     @Test
     public void shouldReturnNullForNoConstructorInjection() {
         // given / when
+        @SuppressWarnings("rawtypes")
         Injection<FieldInjection> injection = ConstructorInjection.provide(FieldInjection.class).get();
 
         // then
diff --git a/src/test/java/fr/xephi/authme/initialization/FieldInjectionTest.java b/src/test/java/fr/xephi/authme/initialization/FieldInjectionTest.java
index 9d2294ae..77035e4d 100644
--- a/src/test/java/fr/xephi/authme/initialization/FieldInjectionTest.java
+++ b/src/test/java/fr/xephi/authme/initialization/FieldInjectionTest.java
@@ -24,6 +24,7 @@ import static org.junit.Assert.assertThat;
  */
 public class FieldInjectionTest {
 
+    @SuppressWarnings("unchecked")
     @Test
     public void shouldReturnDependencies() {
         // given
@@ -105,9 +106,11 @@ public class FieldInjectionTest {
     }
 
     private static class ThrowingConstructor {
+        @SuppressWarnings("unused")
         @Inject
         private ProvidedClass providedClass;
 
+        @SuppressWarnings("unused")
         public ThrowingConstructor() {
             throw new UnsupportedOperationException("Exception in constructor");
         }
diff --git a/src/test/java/fr/xephi/authme/initialization/samples/BadFieldInjection.java b/src/test/java/fr/xephi/authme/initialization/samples/BadFieldInjection.java
index 9dc41548..7e218c4c 100644
--- a/src/test/java/fr/xephi/authme/initialization/samples/BadFieldInjection.java
+++ b/src/test/java/fr/xephi/authme/initialization/samples/BadFieldInjection.java
@@ -7,6 +7,7 @@ import javax.inject.Inject;
  */
 public class BadFieldInjection {
 
+    @SuppressWarnings("unused")
     @Inject
     private AlphaService alphaService;
 
diff --git a/src/test/java/fr/xephi/authme/initialization/samples/InvalidPostConstruct.java b/src/test/java/fr/xephi/authme/initialization/samples/InvalidPostConstruct.java
index e97c4f98..23130e5e 100644
--- a/src/test/java/fr/xephi/authme/initialization/samples/InvalidPostConstruct.java
+++ b/src/test/java/fr/xephi/authme/initialization/samples/InvalidPostConstruct.java
@@ -9,8 +9,10 @@ import javax.inject.Inject;
 public abstract class InvalidPostConstruct {
 
     public static final class WithParams {
+        @SuppressWarnings("unused")
         @Inject
         private AlphaService alphaService;
+        @SuppressWarnings("unused")
         @Inject
         private ProvidedClass providedClass;
 
diff --git a/src/test/java/fr/xephi/authme/initialization/samples/InvalidStaticFieldInjection.java b/src/test/java/fr/xephi/authme/initialization/samples/InvalidStaticFieldInjection.java
index 199b2f4a..83d88b0c 100644
--- a/src/test/java/fr/xephi/authme/initialization/samples/InvalidStaticFieldInjection.java
+++ b/src/test/java/fr/xephi/authme/initialization/samples/InvalidStaticFieldInjection.java
@@ -7,6 +7,7 @@ import javax.inject.Inject;
  */
 public class InvalidStaticFieldInjection {
 
+    @SuppressWarnings("unused")
     @Inject
     private ProvidedClass providedClass;
     @Inject
diff --git a/src/test/java/tools/commands/CommandPageCreater.java b/src/test/java/tools/commands/CommandPageCreater.java
index 4ba48006..ddfaf3e3 100644
--- a/src/test/java/tools/commands/CommandPageCreater.java
+++ b/src/test/java/tools/commands/CommandPageCreater.java
@@ -88,6 +88,7 @@ public class CommandPageCreater implements ToolTask {
      *
      * @return the initializer mock
      */
+    @SuppressWarnings("unchecked")
     private static AuthMeServiceInitializer getMockInitializer() {
         AuthMeServiceInitializer initializer = mock(AuthMeServiceInitializer.class);
         when(initializer.newInstance(isA(Class.class))).thenAnswer(new Answer<Object>() {
diff --git a/src/test/java/tools/hashmethods/EncryptionMethodInfoGatherer.java b/src/test/java/tools/hashmethods/EncryptionMethodInfoGatherer.java
index ad2ecba4..26af6f82 100644
--- a/src/test/java/tools/hashmethods/EncryptionMethodInfoGatherer.java
+++ b/src/test/java/tools/hashmethods/EncryptionMethodInfoGatherer.java
@@ -137,6 +137,7 @@ public class EncryptionMethodInfoGatherer {
         return key.cast(map.get(key));
     }
 
+    @SuppressWarnings("unchecked")
     private static AuthMeServiceInitializer createInitializer() {
         NewSetting settings = mock(NewSetting.class);
         // Return the default value for any property