diff --git a/pom.xml b/pom.xml
index 9302acb926e3c3073b950db808eef875a8fdf13d..ff05c850bb65ccaea2a1a51826a6df876031a37a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,7 +66,7 @@
 		<cluster.runner.version>1.7.0.1-SNAPSHOT</cluster.runner.version>
 
 		<!-- Tomcat -->
-		<tomcat.boot.version>0.3.7</tomcat.boot.version>
+		<tomcat.boot.version>0.3.8-RC6</tomcat.boot.version>
 
 		<!-- Maven Repository -->
 		<maven.snapshot.repo.url>https://oss.sonatype.org/content/repositories/snapshots</maven.snapshot.repo.url>
diff --git a/src/main/java/org/codelibs/fess/FessBoot.java b/src/main/java/org/codelibs/fess/FessBoot.java
index 593bc2784b38bd832681eb8bb7a06f3d877475d4..11ea2e26bc25bda4af94c81bd28e305ae5c6a34f 100644
--- a/src/main/java/org/codelibs/fess/FessBoot.java
+++ b/src/main/java/org/codelibs/fess/FessBoot.java
@@ -1,23 +1,14 @@
 package org.codelibs.fess;
 
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
 import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.ByteBuffer;
-import java.util.logging.Level;
-import java.util.logging.LogManager;
-import java.util.logging.Logger;
-import java.util.regex.Pattern;
 
 import org.dbflute.tomcat.TomcatBoot;
 
 public class FessBoot extends TomcatBoot {
 
-    private static final Logger logger = Logger.getLogger(FessBoot.class.getPackage().getName());
+    private static final String FESS_ENV_PROPERTIES = "fess_env.properties";
 
-    private static final String LOGGING_PROPERTIES = "/logging.properties";
+    private static final String LOGGING_PROPERTIES = "logging.properties";
 
     private static final String FESS_CONTEXT_PATH = "fess.context.path";
 
@@ -31,10 +22,6 @@ public class FessBoot extends TomcatBoot {
 
     private static final String JAVA_IO_TMPDIR = "java.io.tmpdir";
 
-    private static final int DEFAULT_BUF_SIZE = 4096;
-
-    private static final String UTF_8 = "UTF-8";
-
     public FessBoot(final int port, final String contextPath) {
         super(port, contextPath);
     }
@@ -63,8 +50,12 @@ public class FessBoot extends TomcatBoot {
     }
 
     @Override
-    protected void info(final String msg) {
-        logger.info(msg);
+    protected void loadServerLoggingIfNeeds() {
+        try {
+            super.loadServerLoggingIfNeeds();
+        } catch (Exception e) {
+            // ignore
+        }
     }
 
     // ===================================================================================
@@ -72,38 +63,22 @@ public class FessBoot extends TomcatBoot {
     //                                                                        ============
 
     public static void main(final String[] args) {
-        // load logging.properties
-        try (InputStream is = FessBoot.class.getResourceAsStream(LOGGING_PROPERTIES)) {
-            if (is != null) {
-                try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
-                    final ByteBuffer buffer = ByteBuffer.allocate(DEFAULT_BUF_SIZE);
-                    final byte[] buf = buffer.array();
-                    int len;
-                    while ((len = is.read(buf)) != -1) {
-                        out.write(buf, 0, len);
-                    }
-
-                    String configContent = out.toString(UTF_8);
-                    final String fessHomeDir = System.getProperty("fess.home");
-                    if (fessHomeDir != null) {
-                        configContent = configContent.replaceAll(Pattern.quote("${fess.home}"), fessHomeDir);
-                    }
-
-                    LogManager.getLogManager().readConfiguration(new ByteArrayInputStream(configContent.getBytes(UTF_8)));
-                    logger.info(LOGGING_PROPERTIES + " is loaded.");
-                }
-            }
-        } catch (final IOException e) {
-            logger.log(Level.WARNING, "Failed to load " + LOGGING_PROPERTIES, e);
-        }
-
         // update java.io.tmpdir
         final String value = System.getProperty(FESS_TEMP_PATH);
         if (value != null) {
             System.setProperty(JAVA_IO_TMPDIR, value);
         }
 
-        new FessBoot(getPort(), getContextPath()).useTldDetect().asDevelopment(isNoneEnv()).bootAwait();
+        new FessBoot(getPort(), getContextPath()) //
+                .useTldDetect() // for JSP
+                .configure(FESS_ENV_PROPERTIES) // e.g. URIEncoding
+                .logging(LOGGING_PROPERTIES, op -> {
+                    final String fessHomeDir = System.getProperty("fess.home");
+                    if (fessHomeDir != null) {
+                        op.replace("fess.home", fessHomeDir);
+                    }
+                }) // uses jdk14logger
+                .asDevelopment(isNoneEnv()).bootAwait();
     }
 
     private static boolean isNoneEnv() {
diff --git a/src/main/resources/fess_env.properties b/src/main/resources/fess_env.properties
index 7b68f7850c8decd5da464be0118c690bef91065e..7aa7f842553fb8c5b43d4d7feba8c3037fd68860 100644
--- a/src/main/resources/fess_env.properties
+++ b/src/main/resources/fess_env.properties
@@ -45,3 +45,8 @@ mail.return.path = root@localhost
 # ========================================================================================
 #                                                                                     Web
 #                                                                                    =====
+# ----------------------------------------------------------
+#                                                     Tomcat
+#                                                     ------
+tomcat.URIEncoding = UTF-8
+tomcat.useBodyEncodingForURI = true
diff --git a/src/main/resources/fess_env_production.properties b/src/main/resources/fess_env_production.properties
index 2c2c3c788609fa0f724dc7d2f67f4939025db8df..00561aebb8c2816004c031cc65c42f11024a7413 100644
--- a/src/main/resources/fess_env_production.properties
+++ b/src/main/resources/fess_env_production.properties
@@ -45,3 +45,8 @@ mail.return.path = root@localhost
 # ========================================================================================
 #                                                                                     Web
 #                                                                                    =====
+# ----------------------------------------------------------
+#                                                     Tomcat
+#                                                     ------
+tomcat.URIEncoding = UTF-8
+tomcat.useBodyEncodingForURI = true