75: countdown timeouts review and removals

pom.xml

@@ -124,7 +124,7 @@
         <maven.resource.plugin.version>3.3.1</maven.resource.plugin.version>
         <maven.build.helper.plugin.version>3.6.0</maven.build.helper.plugin.version>
         <maven.shade.plugin.version>3.6.0</maven.shade.plugin.version>
-        <pi4j.version>2.7.0-SNAPSHOT</pi4j.version>
+        <pi4j.version>2.7.0</pi4j.version>
         <slf4j.version>2.0.16</slf4j.version>
         <nexus.staging.version>1.6.7</nexus.staging.version>
 

robo4j-core/src/main/java/com/robo4j/AttributeDescriptor.java

@@ -28,12 +28,12 @@ public interface AttributeDescriptor<T> {
 	 * 
 	 * @return the attribute type.
 	 */
-	Class<T> getAttributeType();
+	Class<T> attributeType();
 
 	/**
 	 * Returns the name of the attribute.
 	 * 
 	 * @return the attribute name.
 	 */
-	String getAttributeName();
+	String attributeName();
 }

robo4j-core/src/main/java/com/robo4j/ConfigurationException.java

@@ -16,13 +16,16 @@
  */
 package com.robo4j;
 
+import java.io.Serial;
+
 /**
  * Exception thrown when a problem occurs configuring a RoboUnit.
  * 
  * @author Marcus Hirt (@hirt)
  * @author Miroslav Wengner (@miragemiko)
  */
 public class ConfigurationException extends Exception {
+	@Serial
 	private static final long serialVersionUID = 1L;
 
 	/**

robo4j-core/src/main/java/com/robo4j/DefaultAttributeDescriptor.java

@@ -16,52 +16,37 @@
  */
 package com.robo4j;
 
+import java.io.Serial;
 import java.io.Serializable;
 
 /**
  * Default implementation of an attribute descriptor.
- * 
+ *
  * @author Marcus Hirt (@hirt)
  * @author Miroslav Wengner (@miragemiko)
  */
-public class DefaultAttributeDescriptor<T> implements AttributeDescriptor<T>, Serializable {
+public record DefaultAttributeDescriptor<T>(Class<T> attributeType,
+											String attributeName) implements AttributeDescriptor<T>, Serializable {
+	@Serial
 	private static final long serialVersionUID = 1L;
-	private final Class<T> attributeType;
-	private final String attributeName;
 
 	/**
 	 * Constructor.
-	 * 
-	 * @param attributeType
-	 *            the type of the attribute. Needed since the generic type is
-	 *            erased.
-	 * @param attributeName
-	 *            the name of the attribute.
+	 *
+	 * @param attributeType the type of the attribute. Needed since the generic type is
+	 *                      erased.
+	 * @param attributeName the name of the attribute.
 	 */
-	public DefaultAttributeDescriptor(Class<T> attributeType, String attributeName) {
-		this.attributeType = attributeType;
-		this.attributeName = attributeName;
-	}
-
-	@Override
-	public Class<T> getAttributeType() {
-		return attributeType;
+	public DefaultAttributeDescriptor {
 	}
 
-	@Override
-	public String getAttributeName() {
-		return attributeName;
-	}
 
 	/**
 	 * Factory method for creating attribute descriptors.
-	 * 
-	 * @param attributeType
-	 *            the type of the attribute.
-	 * @param attributeName
-	 *            the name of the attribute.
-	 * @param <T>
-	 *            attribute type class
+	 *
+	 * @param attributeType the type of the attribute.
+	 * @param attributeName the name of the attribute.
+	 * @param <T>           attribute type class
 	 * @return created attribute
 	 */
 	public static <T> DefaultAttributeDescriptor<T> create(Class<T> attributeType, String attributeName) {

robo4j-core/src/main/java/com/robo4j/LocalReferenceAdapter.java

@@ -16,12 +16,12 @@
  */
 package com.robo4j;
 
+import com.robo4j.configuration.Configuration;
+
 import java.util.Collection;
 import java.util.Map;
 import java.util.concurrent.Future;
 
-import com.robo4j.configuration.Configuration;
-
 /**
  * This is a useful adapter to hand off a RoboReference to a unit which will
  * only use it as a callback. Note that this has several serious limits. First,
@@ -56,7 +56,7 @@ public Configuration getConfiguration() {
 	}
 
 	@Override
-	public String getId() {
+	public String id() {
 		return null;
 	}
 

robo4j-core/src/main/java/com/robo4j/RoboBuilder.java

@@ -92,18 +92,14 @@ private class RoboXMLHandler extends DefaultHandler {
         @Override
         public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
             switch (qName) {
-                case ELEMENT_ROBO_UNIT:
-                    currentId = attributes.getValue("id");
-                    break;
-                case SystemXMLHandler.ELEMENT_SYSTEM:
-                    inSystemElement = true;
-                    break;
-                case XmlConfigurationFactory.ELEMENT_CONFIG:
+                case ELEMENT_ROBO_UNIT -> currentId = attributes.getValue("id");
+                case SystemXMLHandler.ELEMENT_SYSTEM -> inSystemElement = true;
+                case XmlConfigurationFactory.ELEMENT_CONFIG -> {
                     if (!configState && !inSystemElement) {
                         currentConfiguration = StringConstants.EMPTY;
                         configState = true;
-                        break;
                     }
+                }
             }
             lastElement = qName;
             if (configState) {
@@ -147,14 +143,8 @@ public void characters(char[] ch, int start, int length) throws SAXException {
             // NOTE(Marcus/Jan 22, 2017): Seems these can be called repeatedly
             // for a single text() node.
             switch (lastElement) {
-                case XmlConfigurationFactory.ELEMENT_CONFIG:
-                    currentConfiguration += toString(ch, start, length);
-                    break;
-                case "class":
-                    currentClassName += toString(ch, start, length);
-                    break;
-                default:
-                    break;
+                case XmlConfigurationFactory.ELEMENT_CONFIG -> currentConfiguration += toString(ch, start, length);
+                case XmlConfigurationFactory.ELEMENT_CLASS -> currentClassName += toString(ch, start, length);
             }
         }
 
@@ -202,15 +192,13 @@ private static class SystemXMLHandler extends DefaultHandler {
         @Override
         public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
             switch (qName) {
-                case ELEMENT_SYSTEM:
-                    currentId = attributes.getValue("id");
-                    break;
-                case XmlConfigurationFactory.ELEMENT_CONFIG:
+                case ELEMENT_SYSTEM -> currentId = attributes.getValue("id");
+                case XmlConfigurationFactory.ELEMENT_CONFIG -> {
                     if (!configState) {
                         currentConfiguration = StringConstants.EMPTY;
                         configState = true;
-                        break;
                     }
+                }
             }
             lastElement = qName;
             if (configState) {
@@ -249,12 +237,8 @@ public void characters(char[] ch, int start, int length) throws SAXException {
             }
             // NOTE(Marcus/Jan 22, 2017): Seems these can be called repeatedly
             // for a single text() node.
-            switch (lastElement) {
-                case XmlConfigurationFactory.ELEMENT_CONFIG:
-                    currentConfiguration += toString(ch, start, length);
-                    break;
-                default:
-                    break;
+            if (lastElement.equals(XmlConfigurationFactory.ELEMENT_CONFIG)) {
+                currentConfiguration += toString(ch, start, length);
             }
         }
 
@@ -443,7 +427,7 @@ private void internalAddUnit(RoboUnit<?> unit) throws RoboBuilderException {
             throw new RoboBuilderException("Cannot add the null unit! Skipping");
         } else if (units.contains(unit)) {
             throw new RoboBuilderException(
-                    "Only one unit with the id " + unit.getId() + " can be active at a time. Skipping " + unit.toString());
+                    "Only one unit with the id " + unit.id() + " can be active at a time. Skipping " + unit.toString());
         }
         units.add(unit);
     }

robo4j-core/src/main/java/com/robo4j/RoboBuilderException.java

@@ -16,13 +16,16 @@
  */
 package com.robo4j;
 
+import java.io.Serial;
+
 /**
  * Exception thrown from the RoboBuilder.
  * 
  * @author Marcus Hirt (@hirt)
  * @author Miroslav Wengner (@miragemiko)
  */
 public class RoboBuilderException extends Exception {
+	@Serial
 	private static final long serialVersionUID = 1L;
 
 	/**