diff --git a/README.md b/README.md
index 57b4656..8360405 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
-[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.github.cowwoc.pouch/java/badge.svg)](https://search.maven.org/search?q=g:com.github.cowwoc.pouch) [![API](https://img.shields.io/badge/api_docs-5B45D5.svg)](http://cowwoc.github.io/pouch/4.5/docs/api/) [![Changelog](https://img.shields.io/badge/changelog-A345D5.svg)](wiki/Changelog.md)
+[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.github.cowwoc.pouch/java/badge.svg)](https://search.maven.org/search?q=g:com.github.cowwoc.pouch) [![API](https://img.shields.io/badge/api_docs-5B45D5.svg)](http://cowwoc.github.io/pouch/4.5/docs/api/) [![Changelog](https://img.shields.io/badge/changelog-A345D5.svg)](docs/Changelog.md)
 [![build-status](../../workflows/Build/badge.svg)](../../actions?query=workflow%3ABuild)
 
-# <img alt="pouch" src="wiki/pouch.svg" width="128" height="146"/> Pouch: Inversion of Control for the Masses
+# <img alt="pouch" src="docs/pouch.svg" width="128" height="146"/> Pouch: Inversion of Control for the Masses
 
 An [Inversion of Control](http://martinfowler.com/articles/injection.html) design pattern that is:
 
@@ -28,7 +28,7 @@ To get started, add this Maven dependency:
 
 ## Scopes
 
-[Service Locators](wiki/Frequently_Asked_Questions.md#not-your-mothers-service-locator) are registries
+[Service Locators](docs/Frequently_Asked_Questions.md#not-your-mothers-service-locator) are registries
 that contain one or more *values*.
 Values can be bound to one or more *scopes*.
 A scope is the context within which a value is defined.
@@ -415,7 +415,7 @@ public final class TestDataSourceFactory extends ConcurrentLazyFactory<DataSourc
 ### Scopes that Return Different Values Over Their Lifetime
 
 Scopes that need to return different values over their lifetime can return
-a [Builder](https://en.wikipedia.org/wiki/Builder_pattern)
+a [Builder](https://en.wikipedia.org/docs/Builder_pattern)
 or [Supplier](https://docs.oracle.com/javase/8/docs/api/java/util/function/Supplier.html) that will, in turn,
 return different values on every invocation.
 
@@ -601,7 +601,7 @@ The [jersey plugin](jersey/src) contains a working example. Download a copy and
 
 # Class guide
 
-![class-guide.png](wiki/class-guide.png)
+![class-guide.png](docs/class-guide.png)
 
 # Plugin modules
 
diff --git a/core/pom.xml b/core/pom.xml
index a99cc07..fbfeff3 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>com.github.cowwoc.pouch</groupId>
@@ -42,9 +43,9 @@
 							<goal>compile</goal>
 						</goals>
 						<configuration>
-							<release>${maven.release.version}</release>
+							<release>9</release>
 							<jdkToolchain>
-								<version>${maven.release.version}</version>
+								<version>9</version>
 							</jdkToolchain>
 							<compileSourceRoots>
 								<compileSourceRoot>${project.build.sourceDirectory}</compileSourceRoot>
@@ -73,9 +74,9 @@
 							<goal>jar</goal>
 						</goals>
 						<configuration>
-							<!-- WARNING: Must use a newer JDK to avoid https://bugs.openjdk.java.net/browse/JDK-8208269 -->
 							<jdkToolchain>
-								<version>${maven.release.version}</version>
+								<!-- WARNING: Must use a newer JDK to avoid https://bugs.openjdk.java.net/browse/JDK-8208269 -->
+								<version>23</version>
 							</jdkToolchain>
 							<source>1.8</source>
 							<show>public</show>
@@ -94,9 +95,9 @@
 							<goal>aggregate</goal>
 						</goals>
 						<configuration>
-							<!-- WARNING: Must use a newer JDK to avoid https://bugs.openjdk.java.net/browse/JDK-8208269 -->
 							<jdkToolchain>
-								<version>${maven.release.version}</version>
+								<!-- WARNING: Must use a newer JDK to avoid https://bugs.openjdk.java.net/browse/JDK-8208269 -->
+								<version>23</version>
 							</jdkToolchain>
 							<show>public</show>
 							<additionalOptions>
diff --git a/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyFactory.java b/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyFactory.java
index 2c4abb3..bec79a6 100644
--- a/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyFactory.java
+++ b/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyFactory.java
@@ -19,6 +19,13 @@
  */
 public abstract class ConcurrentLazyFactory<T> implements Factory<T>
 {
+	/**
+	 * Creates a new instance.
+	 */
+	protected ConcurrentLazyFactory()
+	{
+	}
+
 	/**
 	 * Creates a new {@code ConcurrentLazyFactory}.
 	 *
diff --git a/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyReference.java b/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyReference.java
index 70ca5eb..798698e 100644
--- a/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyReference.java
+++ b/core/src/main/java/com/github/cowwoc/pouch/core/ConcurrentLazyReference.java
@@ -15,6 +15,13 @@
  */
 public abstract class ConcurrentLazyReference<T> implements Reference<T>
 {
+	/**
+	 * Creates a new instance.
+	 */
+	protected ConcurrentLazyReference()
+	{
+	}
+
 	/**
 	 * Creates a new {@code ConcurrentLazyReference}.
 	 *
diff --git a/core/src/main/java/com/github/cowwoc/pouch/core/LazyFactory.java b/core/src/main/java/com/github/cowwoc/pouch/core/LazyFactory.java
index 4054b87..4bbf867 100644
--- a/core/src/main/java/com/github/cowwoc/pouch/core/LazyFactory.java
+++ b/core/src/main/java/com/github/cowwoc/pouch/core/LazyFactory.java
@@ -18,6 +18,13 @@
 public abstract class LazyFactory<T> extends AbstractLazyReference<T>
 	implements Factory<T>
 {
+	/**
+	 * Creates a new instance.
+	 */
+	protected LazyFactory()
+	{
+	}
+
 	/**
 	 * Creates a new {@code LazyFactory}.
 	 *
diff --git a/core/src/main/java/com/github/cowwoc/pouch/core/LazyReference.java b/core/src/main/java/com/github/cowwoc/pouch/core/LazyReference.java
index 54549cf..677e877 100644
--- a/core/src/main/java/com/github/cowwoc/pouch/core/LazyReference.java
+++ b/core/src/main/java/com/github/cowwoc/pouch/core/LazyReference.java
@@ -16,6 +16,13 @@
  */
 public abstract class LazyReference<T> extends AbstractLazyReference<T>
 {
+	/**
+	 * Creates a new instance.
+	 */
+	protected LazyReference()
+	{
+	}
+
 	/**
 	 * Creates a new {@code LazyReference}.
 	 *
diff --git a/core/src/main/java/com/github/cowwoc/pouch/core/WrappedCheckedException.java b/core/src/main/java/com/github/cowwoc/pouch/core/WrappedCheckedException.java
index 3e7ff00..ff0bfb8 100644
--- a/core/src/main/java/com/github/cowwoc/pouch/core/WrappedCheckedException.java
+++ b/core/src/main/java/com/github/cowwoc/pouch/core/WrappedCheckedException.java
@@ -139,6 +139,8 @@ public interface CheckedRunnable
 
 	/**
 	 * A {@link Callable} that does not throw any checked exceptions.
+	 *
+	 * @param <V> the return type of the {@code call} method
 	 */
 	@FunctionalInterface
 	public interface UncheckedCallable<V>
@@ -146,6 +148,7 @@ public interface UncheckedCallable<V>
 		/**
 		 * Runs the task.
 		 *
+		 * @return computed result
 		 * @throws WrappedCheckedException if unable to compute a result
 		 */
 		V call();
diff --git a/wiki/Changelog.md b/docs/Changelog.md
similarity index 100%
rename from wiki/Changelog.md
rename to docs/Changelog.md
diff --git a/documentation/ClassGuide.vsdx b/docs/ClassGuide.vsdx
similarity index 100%
rename from documentation/ClassGuide.vsdx
rename to docs/ClassGuide.vsdx
diff --git a/wiki/Frequently_Asked_Questions.md b/docs/Frequently_Asked_Questions.md
similarity index 100%
rename from wiki/Frequently_Asked_Questions.md
rename to docs/Frequently_Asked_Questions.md
diff --git a/wiki/class-guide.png b/docs/class-guide.png
similarity index 100%
rename from wiki/class-guide.png
rename to docs/class-guide.png
diff --git a/wiki/pouch.svg b/docs/pouch.svg
similarity index 100%
rename from wiki/pouch.svg
rename to docs/pouch.svg
diff --git a/dropwizard/pom.xml b/dropwizard/pom.xml
index eac042d..1c2550a 100644
--- a/dropwizard/pom.xml
+++ b/dropwizard/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>com.github.cowwoc.pouch</groupId>
@@ -79,7 +80,7 @@
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
 				<configuration>
-					<release>${maven.release.version}</release>
+					<release>9</release>
 					<showDeprecation>true</showDeprecation>
 					<showWarnings>true</showWarnings>
 					<compilerArgs>
diff --git a/jersey/pom.xml b/jersey/pom.xml
index e6a5a6e..2ee0d07 100644
--- a/jersey/pom.xml
+++ b/jersey/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>com.github.cowwoc.pouch</groupId>
@@ -85,7 +86,7 @@
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
 				<configuration>
-					<release>${maven.release.version}</release>
+					<release>9</release>
 					<showDeprecation>true</showDeprecation>
 					<showWarnings>true</showWarnings>
 					<compilerArgs>
diff --git a/pom.xml b/pom.xml
index 084cfcc..9b4d527 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.github.cowwoc.pouch</groupId>
 	<artifactId>root</artifactId>
@@ -52,8 +53,6 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<maven.version>3.9.9</maven.version>
-		<!-- Latest LTS version -->
-		<maven.release.version>21</maven.release.version>
 		<junit.version>5.11.3</junit.version>
 	</properties>
 
@@ -200,6 +199,9 @@
 								<goals>
 									<goal>jar</goal>
 								</goals>
+								<configuration>
+									<javadocVersion>23</javadocVersion>
+								</configuration>
 							</execution>
 						</executions>
 					</plugin>