From 72ee37b8f9bd8f97807244fb9af196c05962d99b Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 15:35:24 -0300
Subject: [PATCH 1/9] docs: enhance class documentation

---
 .../addons/twincolgrid/LegacyTwinColGrid.java       | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
index 2ef114f..a509a17 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
@@ -11,7 +11,18 @@
 import java.util.function.Supplier;
 import lombok.NonNull;
 
-/** Implementation of {@code TwinColGrid} with deprecated methods from version 2.9.0. */
+/**
+ * Implementation of {@code TwinColGrid} with deprecated methods from version 2.9.0.
+ * <p>
+ * This class was introduced in version 3.0.0 to maintain backward compatibility with the API from
+ * the previous major version. It facilitates migration by hosting methods that were removed or
+ * changed in the primary implementation.
+ * </p>
+ *
+ * @deprecated As of 3.0.0, this class exists only for migration purposes. New projects should use
+ *             {@code TwinColGrid} directly.
+ * @param <T> the type of items in the grid
+ */
 @SuppressWarnings("serial")
 @Deprecated
 public class LegacyTwinColGrid<T> extends TwinColGrid<T> {

From 102396a28d1123863214926753cecea8724671bd Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 15:36:30 -0300
Subject: [PATCH 2/9] docs: fix double brace in javadoc

---
 .../vaadin/addons/twincolgrid/LegacyTwinColGrid.java          | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
index a509a17..3efaff9 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
@@ -82,7 +82,7 @@ public LegacyTwinColGrid(@NonNull Grid<T> availableGrid, @NonNull Grid<T> select
    * Constructs a new empty TwinColGrid with caption
    *
    * @param caption the component caption
-   * @deprecated Use {@link TwinColGrid#TwinColGrid()} and {{@link #setCaption(String)}
+   * @deprecated Use {@link TwinColGrid#TwinColGrid()} and {@link #setCaption(String)}
    */
   @Deprecated
   @SuppressWarnings("unchecked")
@@ -159,7 +159,7 @@ public LegacyTwinColGrid(
    * @param caption the caption to set, can be {@code null}
    * @param options the options, cannot be {@code null}
    * @deprecated Use {@link TwinColGrid#TwinColGrid(Collection)} and
-   *             {{@link TwinColGrid#setCaption(String)}
+   *             {@link TwinColGrid#setCaption(String)}
    */
   @Deprecated
   @SuppressWarnings("unchecked")

From 13eaf33b855db560e0bd2560ce361ced933ee958 Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 15:43:48 -0300
Subject: [PATCH 3/9] chore: add license headers

---
 .../twincolgrid/FilterableTwinColumn.java     | 19 +++++++++++++++++++
 .../addons/twincolgrid/LegacyTwinColGrid.java | 19 +++++++++++++++++++
 .../vaadin/addons/twincolgrid/TwinColumn.java | 19 +++++++++++++++++++
 .../twincolgrid/CompatibilityExtension.java   | 19 +++++++++++++++++++
 .../TwinColGridListAdapterTest.java           | 19 +++++++++++++++++++
 .../addons/twincolgrid/TwinColGridTest.java   | 19 +++++++++++++++++++
 6 files changed, 114 insertions(+)

diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java
index 0e002cf..e6d0d53 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.twincolgrid;
 
 import com.vaadin.flow.component.Component;
diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
index 3efaff9..0ced0cc 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/LegacyTwinColGrid.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.twincolgrid;
 
 import com.vaadin.flow.component.ItemLabelGenerator;
diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java
index 38eba89..ebaeab6 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.twincolgrid;
 
 import com.vaadin.flow.component.Component;
diff --git a/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/CompatibilityExtension.java b/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/CompatibilityExtension.java
index 73b56fd..8e3910a 100644
--- a/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/CompatibilityExtension.java
+++ b/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/CompatibilityExtension.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.twincolgrid;
 
 import com.vaadin.flow.component.select.Select;
diff --git a/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridListAdapterTest.java b/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridListAdapterTest.java
index 1c1c765..b044e42 100644
--- a/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridListAdapterTest.java
+++ b/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridListAdapterTest.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.twincolgrid;
 
 import org.junit.Assert;
diff --git a/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridTest.java b/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridTest.java
index 48c4daf..9c2d4d0 100644
--- a/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridTest.java
+++ b/src/test/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGridTest.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.twincolgrid;
 
 import org.junit.Assert;

From 102eed0444c80c13bbc1b0fea738162b457e027f Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 15:44:17 -0300
Subject: [PATCH 4/9] ci: add license plugin exclusions

---
 pom.xml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pom.xml b/pom.xml
index 7862eff..63c8cf1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -156,6 +156,10 @@
 				<configuration>
 				  <licenseName>apache_v2</licenseName>
 				  <addJavaLicenseAfterPackage>false</addJavaLicenseAfterPackage>
+				      <excludes>
+				          <exclude>main/bundles/**</exclude>
+				          <exclude>main/frontend/**</exclude>
+				      </excludes>
 				</configuration>
 			</plugin>
 			

From 2ac6cb9f5e683756511d970a5a7b3a848d88e6e8 Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 16:05:31 -0300
Subject: [PATCH 5/9] refactor: avoid use of commons.lang3

Close #204
---
 .../addons/twincolgrid/CharSequenceUtils.java | 101 ++++++++++++++++++
 .../addons/twincolgrid/StringUtils.java       |  57 ++++++++++
 .../addons/twincolgrid/TwinColGrid.java       |   1 -
 3 files changed, 158 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/com/flowingcode/vaadin/addons/twincolgrid/CharSequenceUtils.java
 create mode 100644 src/main/java/com/flowingcode/vaadin/addons/twincolgrid/StringUtils.java

diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/CharSequenceUtils.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/CharSequenceUtils.java
new file mode 100644
index 0000000..aa24623
--- /dev/null
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/CharSequenceUtils.java
@@ -0,0 +1,101 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+package com.flowingcode.vaadin.addons.twincolgrid;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+class CharSequenceUtils {
+
+  /**
+   * Green implementation of regionMatches.
+   *
+   * @param cs the {@link CharSequence} to be processed
+   * @param ignoreCase whether or not to be case-insensitive
+   * @param thisStart the index to start on the {@code cs} CharSequence
+   * @param substring the {@link CharSequence} to be looked for
+   * @param start the index to start on the {@code substring} CharSequence
+   * @param length character length of the region
+   * @return whether the region matched
+   * @see String#regionMatches(boolean, int, String, int, int)
+   */
+    static boolean regionMatches(final CharSequence cs, final boolean ignoreCase, final int thisStart,
+            final CharSequence substring, final int start, final int length)    {
+        if (cs instanceof String && substring instanceof String) {
+            return ((String) cs).regionMatches(ignoreCase, thisStart, (String) substring, start, length);
+        }
+        int index1 = thisStart;
+        int index2 = start;
+        int tmpLen = length;
+
+        // Extract these first so we detect NPEs the same as the java.lang.String version
+        final int srcLen = cs.length() - thisStart;
+        final int otherLen = substring.length() - start;
+
+        // Check for invalid parameters
+        if (thisStart < 0 || start < 0 || length < 0) {
+            return false;
+        }
+
+        // Check that the regions are long enough
+        if (srcLen < length || otherLen < length) {
+            return false;
+        }
+
+        while (tmpLen-- > 0) {
+            final char c1 = cs.charAt(index1++);
+            final char c2 = substring.charAt(index2++);
+
+            if (c1 == c2) {
+                continue;
+            }
+
+            if (!ignoreCase) {
+                return false;
+            }
+
+            // The real same check as in String#regionMatches(boolean, int, String, int, int):
+            final char u1 = Character.toUpperCase(c1);
+            final char u2 = Character.toUpperCase(c2);
+            if (u1 != u2 && Character.toLowerCase(u1) != Character.toLowerCase(u2)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+}
diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/StringUtils.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/StringUtils.java
new file mode 100644
index 0000000..a101875
--- /dev/null
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/StringUtils.java
@@ -0,0 +1,57 @@
+/*-
+ * #%L
+ * TwinColGrid add-on
+ * %%
+ * Copyright (C) 2017 - 2025 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+package com.flowingcode.vaadin.addons.twincolgrid;
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+class StringUtils {
+
+  public static boolean containsIgnoreCase(String str, String searchStr) {
+    if (str == null || searchStr == null) {
+      return false;
+    }
+    final int len = searchStr.length();
+    final int max = str.length() - len;
+    for (int i = 0; i <= max; i++) {
+      if (CharSequenceUtils.regionMatches(str, true, i, searchStr, 0, len)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+}
diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java
index ac1a184..e31626f 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java
@@ -72,7 +72,6 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import lombok.NonNull;
-import org.apache.commons.lang3.StringUtils;
 
 @SuppressWarnings("serial")
 @JsModule(value = "./src/fc-twin-col-grid-auto-resize.js")

From d8f8a1039cb333964b502804336da61b13bd1b5f Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 16:10:40 -0300
Subject: [PATCH 6/9] build: set version to 4.0.0-SNAPSHOT

---
 pom.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pom.xml b/pom.xml
index 63c8cf1..ff79d0f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.flowingcode.vaadin.addons</groupId>
 	<artifactId>twincolgrid</artifactId>
-	<version>3.2.0-SNAPSHOT</version>
+	<version>4.0.0-SNAPSHOT</version>
 	<name>TwinColGrid add-on</name>
 	<description>Dual list component based on Vaadin Grids</description>
 	<url>https://www.flowingcode.com/en/open-source/</url>

From 313be6d44f16c36f90fa0239d338b72edf010016 Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 16:13:36 -0300
Subject: [PATCH 7/9] build!: upgrade vaadin to 24.9.8

---
 pom.xml | 65 ++++++++-------------------------------------------------
 1 file changed, 9 insertions(+), 56 deletions(-)

diff --git a/pom.xml b/pom.xml
index ff79d0f..9d1168a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,12 +9,12 @@
 	<url>https://www.flowingcode.com/en/open-source/</url>
 	
     <properties>
-        <vaadin.version>14.11.13</vaadin.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <vaadin.version>24.9.8</vaadin.version>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <jetty.version>9.4.36.v20210114</jetty.version>
+        <jetty.version>11.0.26</jetty.version>
     </properties>
     <organization>
 	   <name>Flowing Code</name>
@@ -128,11 +128,11 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-        	<groupId>javax.servlet</groupId>
-		    <artifactId>servlet-api</artifactId>
-		    <version>2.5</version>
-		    <scope>provided</scope>
-	    </dependency>
+            <groupId>jakarta.servlet</groupId>
+            <artifactId>jakarta.servlet-api</artifactId>
+            <version>6.0.0</version>
+            <scope>provided</scope>
+        </dependency>
 	    <dependency>
 		    <groupId>junit</groupId>
 		    <artifactId>junit</artifactId>
@@ -355,47 +355,6 @@
 				</plugins>
 			</build>
 		</profile>
-		
-		<profile>
-			<id>v23</id>
-			<properties>
-				<vaadin.version>23.3.5</vaadin.version>
-				<maven.compiler.source>11</maven.compiler.source>
-				<maven.compiler.target>11</maven.compiler.target>				
-			</properties>
-		</profile>
-		
-		<profile>
-			<id>v24</id>
-			<properties>
-				<maven.compiler.source>17</maven.compiler.source>
-				<maven.compiler.target>17</maven.compiler.target>
-				<vaadin.version>24.2.6</vaadin.version>
-				<jetty.version>11.0.12</jetty.version>
-			</properties>
-			<repositories>
-				<repository>
-					<id>vaadin-prerelease</id>
-					<url>https://maven.vaadin.com/vaadin-prereleases</url>
-				</repository>
-			</repositories>
-			<pluginRepositories>
-				<pluginRepository>
-					<id>vaadin-prerelease</id>
-					<url>https://maven.vaadin.com/vaadin-prereleases</url>
-				</pluginRepository>
-			</pluginRepositories>
-
-			<dependencies>
-				<dependency>
-					<groupId>jakarta.servlet</groupId>
-					<artifactId>jakarta.servlet-api</artifactId>
-					<version>6.0.0</version>
-					<scope>provided</scope>
-				</dependency>
-			</dependencies>
-		</profile>
-		
 
         <profile>
             <id>release</id>
@@ -431,12 +390,6 @@
                     <artifactId>vaadin-dev</artifactId>
                     <optional>true</optional>
                 </dependency>
-                <dependency>
-                    <groupId>jakarta.servlet</groupId>
-                    <artifactId>jakarta.servlet-api</artifactId>
-                    <version>6.0.0</version>
-                    <scope>provided</scope>
-                </dependency>
             </dependencies>
         </profile>
         

From c302071dedb4d5b296c2a9c96f3f735f4289da00 Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 16:16:43 -0300
Subject: [PATCH 8/9] feat!: replace setClassNameGenerator with
 setPartNameGenerator

Close #203
---
 .../twincolgrid/FilterableTwinColumn.java     |  6 +++---
 .../vaadin/addons/twincolgrid/TwinColumn.java | 21 ++++++++++++-------
 2 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java
index e6d0d53..79b66e5 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java
@@ -137,9 +137,9 @@ public FilterableTwinColumn<T> setFooter(Supplier<Component> footerComponentSupp
   }
 
   @Override
-  public FilterableTwinColumn<T> setClassNameGenerator(
-      SerializableFunction<T, String> classNameGenerator) {
-    super.setClassNameGenerator(classNameGenerator);
+  public FilterableTwinColumn<T> setPartNameGenerator(
+      SerializableFunction<T, String> partNameGenerator) {
+    super.setPartNameGenerator(partNameGenerator);
     return this;
   }
 
diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java
index ebaeab6..b358a38 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColumn.java
@@ -20,6 +20,7 @@
 package com.flowingcode.vaadin.addons.twincolgrid;
 
 import com.vaadin.flow.component.Component;
+import com.vaadin.flow.component.grid.Grid;
 import com.vaadin.flow.component.grid.Grid.Column;
 import com.vaadin.flow.component.grid.SortOrderProvider;
 import com.vaadin.flow.data.provider.QuerySortOrder;
@@ -240,17 +241,21 @@ public TwinColumn<T> setFooter(Supplier<Component> footerComponentSupplier) {
   }
 
   /**
-   * Sets the function that is used for generating CSS class names for cells in both columns.
+   * Sets the function that is used for generating CSS part names for cells in both columns.
+   * Returning {@code null} from the generator results in no custom part name being set. Multiple
+   * part names can be returned from the generator as space-separated.
+   * <p>
+   * If {@link Grid#setPartNameGenerator(SerializableFunction)} is used together with this method,
+   * resulting part names from both methods will be effective.
    *
-   * @see Column#setClassNameGenerator(SerializableFunction)
-   *
-   * @param classNameGenerator the class name generator to set, not {@code null}
+   * @param partNameGenerator the part name generator to set, not {@code null}
    * @return this instance, for method chaining
-   * @throws NullPointerException if {@code classNameGenerator} is {@code null}
+   * @throws NullPointerException if {@code partNameGenerator} is {@code null}
+   * @see Column#setPartNameGenerator(SerializableFunction)
    */
-  public TwinColumn<T> setClassNameGenerator(SerializableFunction<T, String> classNameGenerator) {
-    availableColumn.setClassNameGenerator(classNameGenerator);
-    selectionColumn.setClassNameGenerator(classNameGenerator);
+  public TwinColumn<T> setPartNameGenerator(SerializableFunction<T, String> partNameGenerator) {
+    availableColumn.setPartNameGenerator(partNameGenerator);
+    selectionColumn.setPartNameGenerator(partNameGenerator);
     return this;
   }
 

From edec196828803125db0e68a8218bd8cdf5507651 Mon Sep 17 00:00:00 2001
From: Javier Godoy <11554739+javier-godoy@users.noreply.github.com>
Date: Mon, 29 Dec 2025 16:27:18 -0300
Subject: [PATCH 9/9] build(demo): upgrade commons-demo to 5.0.0

---
 pom.xml | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/pom.xml b/pom.xml
index 9d1168a..2c3cb76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -142,7 +142,7 @@
 		<dependency>
 			<groupId>com.flowingcode.vaadin.addons.demo</groupId>
 			<artifactId>commons-demo</artifactId>
-			<version>3.8.0</version>
+			<version>5.0.0</version>
 			<scope>test</scope>
 		</dependency>
     </dependencies>
@@ -379,12 +379,6 @@
                 <jetty.version>11.0.26</jetty.version>
             </properties>
             <dependencies>
-                <dependency>
-                    <groupId>com.flowingcode.vaadin.addons.demo</groupId>
-                    <artifactId>commons-demo</artifactId>
-                    <version>5.0.0</version>
-                    <scope>test</scope>
-                </dependency>
                 <dependency>
                     <groupId>com.vaadin</groupId>
                     <artifactId>vaadin-dev</artifactId>