diff --git a/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseMessageProcessor.java b/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseMessageProcessor.java
index b2bafe0386c6b..e46c9927263d1 100644
--- a/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseMessageProcessor.java
+++ b/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseMessageProcessor.java
@@ -22,7 +22,6 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import org.apache.commons.lang3.StringUtils;
 import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.eclipse.jdt.annotation.Nullable;
 import org.openhab.binding.plugwise.internal.protocol.AcknowledgementMessage;
@@ -95,7 +94,7 @@ public PlugwiseMessageProcessor(PlugwiseCommunicationContext context) {
      */
     private void parseAndQueue(ByteBuffer readBuffer) {
         String response = new String(readBuffer.array(), 0, readBuffer.limit());
-        response = StringUtils.chomp(response);
+        response = response.replaceAll("\r", "").replaceAll("\n", "");
 
         Matcher matcher = RESPONSE_PATTERN.matcher(response);
 
diff --git a/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseUtils.java b/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseUtils.java
index 35b34aa1ada08..fb86148f9e5d4 100644
--- a/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseUtils.java
+++ b/bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/PlugwiseUtils.java
@@ -20,8 +20,6 @@
 import java.time.format.DateTimeFormatter;
 import java.util.Map;
 
-import org.apache.commons.lang3.StringUtils;
-import org.apache.commons.lang3.text.WordUtils;
 import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.eclipse.jdt.annotation.Nullable;
 import org.openhab.binding.plugwise.internal.protocol.InformationResponseMessage;
@@ -102,8 +100,19 @@ public static void stopBackgroundThread(@Nullable Thread thread) {
     }
 
     public static String upperUnderscoreToLowerCamel(String text) {
-        String upperCamel = StringUtils.remove(WordUtils.capitalizeFully(text, new char[] { '_' }), "_");
-        return upperCamel.substring(0, 1).toLowerCase() + upperCamel.substring(1);
+        final String delimiter = "_";
+        StringBuilder upperCamelBuilder = new StringBuilder(text.length());
+        for (String str : text.split(delimiter)) {
+            if (upperCamelBuilder.isEmpty() && str.length() > 0) {
+                upperCamelBuilder.append(str.substring(0, 1).toLowerCase());
+            } else if (str.length() > 0) {
+                upperCamelBuilder.append(str.substring(0, 1).toUpperCase());
+            }
+            if (str.length() > 1) {
+                upperCamelBuilder.append(str.substring(1).toLowerCase());
+            }
+        }
+        return upperCamelBuilder.toString();
     }
 
     public static boolean updateProperties(Map<String, String> properties, InformationResponseMessage message) {
diff --git a/bundles/org.openhab.binding.plugwise/src/test/java/org/openhab/binding/plugwise/internal/PlugwiseUtilsTest.java b/bundles/org.openhab.binding.plugwise/src/test/java/org/openhab/binding/plugwise/internal/PlugwiseUtilsTest.java
new file mode 100644
index 0000000000000..a72f84037acdb
--- /dev/null
+++ b/bundles/org.openhab.binding.plugwise/src/test/java/org/openhab/binding/plugwise/internal/PlugwiseUtilsTest.java
@@ -0,0 +1,38 @@
+/**
+ * Copyright (c) 2010-2023 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+package org.openhab.binding.plugwise.internal;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.junit.jupiter.api.Test;
+
+/**
+ * The {@link PlugwiseUtilsTest} class tests some static string utility methods
+ *
+ * @author Leo Siepel - Initial contribution
+ */
+@NonNullByDefault
+public class PlugwiseUtilsTest {
+
+    @Test
+    public void upperUnderscoreToLowerCamelBaseTest() {
+        assertEquals("nodelimiterpresent", PlugwiseUtils.upperUnderscoreToLowerCamel("NoDelimiterPresent"));
+        assertEquals("delimiterIsPresent", PlugwiseUtils.upperUnderscoreToLowerCamel("DeliMiter_iS_PreSent"));
+        assertEquals("doubleDelimitersDouble", PlugwiseUtils.upperUnderscoreToLowerCamel("DOUBLE__DELIMITERS__DOUBLE"));
+        assertEquals("helloWorld", PlugwiseUtils.upperUnderscoreToLowerCamel("HELLO_WORLD"));
+        assertEquals("", PlugwiseUtils.upperUnderscoreToLowerCamel(""));
+        assertEquals("", PlugwiseUtils.upperUnderscoreToLowerCamel("_"));
+    }
+}