diff --git a/pom.xml b/pom.xml
index 9bf8921..f014a51 100644
--- a/pom.xml
+++ b/pom.xml
@@ -75,10 +75,10 @@
     <!-- Docker container dependency versions -->
     <!-- https://packages.ubuntu.com/search?keywords=search -->
     <ubuntu.tag>22.04</ubuntu.tag>
-    <openjdk.version>17.0.8.1+1~us1-0ubuntu1~22.04</openjdk.version>
+    <openjdk.version>17.0.9+9-1~22.04</openjdk.version>
     <gcc.version>4:11.2.0-1ubuntu1</gcc.version>
     <make.version>4.3-4.1build1</make.version>
-    <libtiff.version>4.3.0-6ubuntu0.6</libtiff.version>
+    <libtiff.version>4.3.0-6ubuntu0.7</libtiff.version>
     <build.essential.version>12.9ubuntu3</build.essential.version>
     <libopenjp2.version>2.4.0-6</libopenjp2.version>
     <libturbojpeg.version>2.1.2-0ubuntu1</libturbojpeg.version>
@@ -609,7 +609,7 @@
   <parent>
     <groupId>info.freelibrary</groupId>
     <artifactId>freelib-parent</artifactId>
-    <version>8.0.0</version>
+    <version>8.0.4</version>
   </parent>
 
 </project>
diff --git a/src/main/tools/checkstyle/checkstyle.xml b/src/main/tools/checkstyle/checkstyle.xml
index 6d99c58..b3ad842 100644
--- a/src/main/tools/checkstyle/checkstyle.xml
+++ b/src/main/tools/checkstyle/checkstyle.xml
@@ -44,14 +44,28 @@
     <module name="BooleanExpressionComplexity">
       <property name="max" value="4" />
     </module>
-    <module name="MissingJavadocMethod" />
+    <module name="MissingJavadocMethod">
+      <property name="scope" value="private" />
+    </module>
+    <module name="JavadocMethod">
+      <property name="validateThrows" value="true" />
+      <property name="allowedAnnotations"
+        value="Override, Test, Before, BeforeClass, After, AfterClass, JsonInclude, JsonGetter, JsonSetter, JsonProperty" />
+    </module>
     <module name="JavadocType">
       <property name="excludeScope" value="anoninner" />
-      <property name="allowUnknownTags" value="true" />
     </module>
-    <module name="MissingJavadocType" />
+    <module name="NonEmptyAtclauseDescription"/>
+    <module name="InvalidJavadocPosition"/>
+    <module name="JavadocVariable" />
     <module name="MissingJavadocPackage" />
-    <module name="JavadocMethod" />
+    <module name="SummaryJavadocCheck" />
+    <module name="MissingJavadocType">
+      <property name="scope" value="private" />
+    </module>
+    <module name="JavadocStyle">
+      <property name="checkFirstSentence" value="false"/>
+    </module>
     <module name="NeedBraces" />
     <module name="LeftCurly" />
     <module name="RightCurly" />
diff --git a/src/test/java/edu/ucla/library/iiif/cantaloupe/AbstractCantaloupeIT.java b/src/test/java/edu/ucla/library/iiif/cantaloupe/AbstractCantaloupeIT.java
index acec994..54d7f96 100644
--- a/src/test/java/edu/ucla/library/iiif/cantaloupe/AbstractCantaloupeIT.java
+++ b/src/test/java/edu/ucla/library/iiif/cantaloupe/AbstractCantaloupeIT.java
@@ -12,16 +12,22 @@
  */
 class AbstractCantaloupeIT {
 
+    /** A URL pattern constant. */
     private static final String URL_PATTERN = "http://localhost:{}";
 
+    /** A default port constant. */
     private static final String DEFAULT_PORT = "8182";
 
+    /** The URL being tested. */
     protected String myURL;
 
+    /** The port being tested. */
     protected int myPort;
 
+    /** Whether the test system has Kakadu installed. */
     protected boolean hasKakaduInstalled;
 
+    /** Whether the test is running in a development environment. */
     protected boolean isDevBuild;
 
     /**
diff --git a/src/test/java/edu/ucla/library/iiif/cantaloupe/Constants.java b/src/test/java/edu/ucla/library/iiif/cantaloupe/Constants.java
index a81f766..39b2cfd 100644
--- a/src/test/java/edu/ucla/library/iiif/cantaloupe/Constants.java
+++ b/src/test/java/edu/ucla/library/iiif/cantaloupe/Constants.java
@@ -6,24 +6,28 @@
  */
 public final class Constants {
 
-    /* The randomly selected port at which Cantaloupe is run. */
+    /** The randomly selected port at which Cantaloupe is run. */
     public static final String PORT = "http.port";
 
-    /* The version of Cantaloupe that's being tested. */
+    /** The version of Cantaloupe that's being tested. */
     public static final String CANTALOUPE_VERSION = "cantaloupe.version";
 
-    /* The Cantaloupe commit hash that's being tested. */
+    /** The Cantaloupe commit hash that's being tested. */
     public static final String CANTALOUPE_COMMIT_REF = "cantaloupe.commit.ref";
 
-    /* The version of Kakadu that's being tested. */
+    /** The version of Kakadu that's being tested. */
     public static final String KAKADU_VERSION = "kakadu.version";
 
-    /* A flag to indicate we want to build a snapshot build from the 5.x line. */
+    /** A flag to indicate we want to build a snapshot build from the 5.x line. */
     public static final String DEV_BUILD = "devBuild";
 
-    /* A constant representing an empty string. */
+    /** A constant representing an empty string. */
     public static final String EMPTY = "";
 
+    /**
+     * Creates a new constants class.
+     */
     private Constants() {
+        // This is intentionally left empty.
     }
 }
diff --git a/src/test/java/edu/ucla/library/iiif/cantaloupe/KakaduIT.java b/src/test/java/edu/ucla/library/iiif/cantaloupe/KakaduIT.java
index 660cf3e..23e0c81 100644
--- a/src/test/java/edu/ucla/library/iiif/cantaloupe/KakaduIT.java
+++ b/src/test/java/edu/ucla/library/iiif/cantaloupe/KakaduIT.java
@@ -24,6 +24,7 @@
  */
 public class KakaduIT extends AbstractCantaloupeIT {
 
+    /** A test logger. */
     private static final Logger LOGGER = LoggerFactory.getLogger(KakaduIT.class, MessageCodes.BUNDLE);
 
     /**
diff --git a/src/test/java/edu/ucla/library/iiif/cantaloupe/VersionIT.java b/src/test/java/edu/ucla/library/iiif/cantaloupe/VersionIT.java
index 7c979c2..52864ad 100644
--- a/src/test/java/edu/ucla/library/iiif/cantaloupe/VersionIT.java
+++ b/src/test/java/edu/ucla/library/iiif/cantaloupe/VersionIT.java
@@ -1,7 +1,9 @@
 
 package edu.ucla.library.iiif.cantaloupe;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 
 import java.io.IOException;
 
@@ -19,8 +21,10 @@
  */
 public class VersionIT extends AbstractCantaloupeIT {
 
+    /** A test logger. */
     private static final Logger LOGGER = LoggerFactory.getLogger(VersionIT.class, MessageCodes.BUNDLE);
 
+    /** The HTML containing the version to be tested. */
     private Document myHTML;
 
     /**