diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties
index 6686a64..8bbd082 100644
--- a/.mvn/wrapper/maven-wrapper.properties
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -14,5 +14,5 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.0/apache-maven-3.9.0-bin.zip
-wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.5/apache-maven-3.9.5-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar
\ No newline at end of file
diff --git a/cmake-common/src/main/java/com/googlecode/cmakemavenproject/OperatingSystem.java b/cmake-common/src/main/java/com/googlecode/cmakemavenproject/OperatingSystem.java
index 8e0971d..9cb3013 100644
--- a/cmake-common/src/main/java/com/googlecode/cmakemavenproject/OperatingSystem.java
+++ b/cmake-common/src/main/java/com/googlecode/cmakemavenproject/OperatingSystem.java
@@ -84,11 +84,11 @@ public String getClassifier()
 	}
 
 	/**
-	 * Returns the fully-qualified path of the executable.
+	 * Returns the fully qualified path of the executable.
 	 *
 	 * @param filename the filename of a binary
 	 * @param path     the {@code PATH} environment variable
-	 * @return the fully-qualified path of the executable
+	 * @return the fully qualified path of the executable
 	 * @throws NullPointerException  if any of the arguments are null
 	 * @throws FileNotFoundException if the binary could not be found
 	 */
@@ -98,7 +98,7 @@ public Path getExecutableOnPath(String filename, String path) throws FileNotFoun
 			throw new NullPointerException("filename may not be null");
 		if (path == null)
 			throw new NullPointerException("path may not be null");
-		// Per https://stackoverflow.com/a/34061154/14731 it's easier to invoke a fully-qualified path
+		// Per https://stackoverflow.com/a/34061154/14731 it's easier to invoke a fully qualified path
 		// than trying to quote command-line arguments properly.
 		// https://stackoverflow.com/a/32827512/14731 shows how this can be done.
 		String suffix = getExecutableSuffix();
@@ -292,7 +292,11 @@ public enum Architecture
 		/**
 		 * ARM, 64-bit.
 		 */
-		ARM_64;
+		ARM_64,
+		/**
+		 * Unsupported architecture.
+		 */
+		UNSUPPORTED;
 
 		private static final Reference<Architecture> DETECTED = ConcurrentLazyReference.create(() ->
 		{
@@ -318,12 +322,10 @@ public enum Architecture
 				case "arm":
 				case "arm32":
 					return ARM_32;
-				case "arm64":
 				case "aarch64":
 					return ARM_64;
 				default:
-					throw new AssertionError("Unsupported architecture: " + osArch + "\n" +
-						"properties: " + System.getProperties());
+					return UNSUPPORTED;
 			}
 		});
 
@@ -361,25 +363,15 @@ String getEnvironmentCanonicalName(Map<String, String> environment, String name)
 		/**
 		 * Linux.
 		 */
-		LINUX
-			{
-				@Override
-				String getEnvironmentCanonicalName(Map<String, String> environment, String name)
-				{
-					return name;
-				}
-			},
+		LINUX,
 		/**
 		 * macOS.
 		 */
-		MAC
-			{
-				@Override
-				String getEnvironmentCanonicalName(Map<String, String> environment, String name)
-				{
-					return name;
-				}
-			};
+		MAC,
+		/**
+		 * Unsupported operating system.
+		 */
+		UNSUPPORTED;
 
 		private static final Reference<Type> DETECTED = ConcurrentLazyReference.create(() ->
 		{
@@ -390,8 +382,7 @@ String getEnvironmentCanonicalName(Map<String, String> environment, String name)
 				return LINUX;
 			if (startsWithIgnoreCase(osName, "mac"))
 				return MAC;
-			throw new AssertionError("Unsupported operating system: " + osName + "\n" +
-				"properties: " + System.getProperties());
+			return UNSUPPORTED;
 		});
 
 		/**
@@ -420,6 +411,9 @@ private static boolean startsWithIgnoreCase(String str, String prefix)
 		 * @param name        an environment variable
 		 * @return the case-sensitive form of the variable
 		 */
-		abstract String getEnvironmentCanonicalName(Map<String, String> environment, String name);
+		String getEnvironmentCanonicalName(Map<String, String> environment, String name)
+		{
+			return name;
+		}
 	}
-}
+}
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 69313ab..db56951 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,10 +35,10 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<maven.version>3.9.0</maven.version>
+		<maven.version>3.9.5</maven.version>
 		<maven.compiler.source>1.8</maven.compiler.source>
 		<maven.compiler.target>1.8</maven.compiler.target>
-		<maven.core.version>3.9.0</maven.core.version>
+		<maven.core.version>3.9.5</maven.core.version>
 	</properties>
 
 	<distributionManagement>
@@ -61,12 +61,12 @@
 			<dependency>
 				<groupId>org.apache.maven.plugin-tools</groupId>
 				<artifactId>maven-plugin-annotations</artifactId>
-				<version>3.9.0</version>
+				<version>3.10.1</version>
 			</dependency>
 			<dependency>
 				<groupId>org.apache.commons</groupId>
 				<artifactId>commons-compress</artifactId>
-				<version>1.23.0</version>
+				<version>1.24.0</version>
 			</dependency>
 			<dependency>
 				<groupId>com.github.cowwoc.pouch</groupId>
@@ -86,7 +86,7 @@
 			<dependency>
 				<groupId>com.google.guava</groupId>
 				<artifactId>guava</artifactId>
-				<version>32.1.2-jre</version>
+				<version>32.1.3-jre</version>
 			</dependency>
 		</dependencies>
 	</dependencyManagement>
@@ -96,7 +96,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-enforcer-plugin</artifactId>
-					<version>3.3.0</version>
+					<version>3.4.1</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -111,7 +111,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-javadoc-plugin</artifactId>
-					<version>3.5.0</version>
+					<version>3.6.0</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -121,7 +121,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-plugin-plugin</artifactId>
-					<version>3.9.0</version>
+					<version>3.10.1</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -131,7 +131,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-dependency-plugin</artifactId>
-					<version>3.6.0</version>
+					<version>3.6.1</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -141,7 +141,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-clean-plugin</artifactId>
-					<version>3.3.1</version>
+					<version>3.3.2</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -156,7 +156,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-site-plugin</artifactId>
-					<version>4.0.0-M9</version>
+					<version>4.0.0-M11</version>
 				</plugin>
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
@@ -179,7 +179,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-enforcer-plugin</artifactId>
-				<version>3.3.0</version>
+				<version>3.4.1</version>
 				<executions>
 					<execution>
 						<id>enforce-maven</id>
@@ -433,7 +433,7 @@
 					</plugin>
 					<plugin>
 						<artifactId>maven-javadoc-plugin</artifactId>
-						<version>3.5.0</version>
+						<version>3.6.0</version>
 					</plugin>
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>