Revised component catalogue

.run/Debug on Pi.run.xml

@@ -10,9 +10,7 @@
           </option>
           <option name="jreName" value="#USE_PROJECT_JDK" />
           <option name="mavenProperties">
-            <map>
-              <entry key="pi.ipnumber" value="pi4j.local" />
-            </map>
+            <map />
           </option>
           <option name="passParentEnv" value="true" />
           <option name="runMavenInBackground" value="true" />
@@ -34,6 +32,7 @@
           <option name="profilesMap">
             <map>
               <entry key="debug" value="true" />
+              <entry key="remote-run" value="true" />
             </map>
           </option>
           <option name="resolveToWorkspace" value="false" />

.run/Rerun version on Pi.run.xml

@@ -0,0 +1,33 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Rerun version on Pi" type="MavenRunConfiguration" factoryName="Maven">
+    <MavenSettings>
+      <option name="myGeneralSettings" />
+      <option name="myRunnerSettings" />
+      <option name="myRunnerParameters">
+        <MavenRunnerParameters>
+          <option name="profiles">
+            <set />
+          </option>
+          <option name="goals">
+            <list>
+              <option value="package" />
+              <option value="-DskipTests=true" />
+              <option value="-Dmaven.test.skip" />
+              <option value="-Dmaven.main.skip=true" />
+              <option value="--no-snapshot-updates" />
+            </list>
+          </option>
+          <option name="pomFileName" value="pom.xml" />
+          <option name="profilesMap">
+            <map>
+              <entry key="rerun" value="true" />
+            </map>
+          </option>
+          <option name="resolveToWorkspace" value="false" />
+          <option name="workingDirPath" value="$PROJECT_DIR$" />
+        </MavenRunnerParameters>
+      </option>
+    </MavenSettings>
+    <method v="2" />
+  </configuration>
+</component>

.run/Run on Pi.run.xml

@@ -10,9 +10,7 @@
           </option>
           <option name="jreName" value="#USE_PROJECT_JDK" />
           <option name="mavenProperties">
-            <map>
-              <entry key="pi.ipnumber" value="pi4j.local" />
-            </map>
+            <map />
           </option>
           <option name="passParentEnv" value="true" />
           <option name="runMavenInBackground" value="true" />

README.md

@@ -14,31 +14,35 @@ See [Pi4J website](https://pi4j.com/examples/components/).
 
 ## Start application on Pi
 
-It's strongly recommended to use the Linux image [Pi4J-Basis-OS](https://github.com/Pi4J/pi4j-os/tree/upgrade-jdk18-jfx18) and [IntelliJ IDEA](https://www.jetbrains.com/idea/) as IDE on your developer machine. But, of course, you can use any other IDE and use maven commands to experiment with our component catalogue.
+
+It's strongly recommended to use the Linux image [Pi4J-Basic-OS](https://pi4j-download.com/latest.php?flavor=basic) and [IntelliJ IDEA](https://www.jetbrains.com/idea/) as IDE on your developer machine. But, of course, you can use any other IDE and use maven commands to experiment with our component catalogue.
 
 In IntelliJ IDEA ready-made run-configurations are available for running the demo application on the RaspPi.
 
 ## Start application on Raspberry Pi
-- Make sure that Pi and your development machine are in the same WLAN.
-- You have to check whether the correct IP-address is set in the run-configuration
-  - via `Edit Configurations... -> Run on Pi -> Properties -> pi.ipnumber=pi4j.local`
-- `Run on Pi` starts the demo application remotely on the Raspberry Pi
+- Make sure that Pi and your development machine are in the same WLAN (see recommendations in [Pi4J OS](https://github.com/Pi4J/pi4j-os))
+- Check whether the correct IP-address is set in `pom.xml`
+  - set properties `<pi.hostname>` and `<pi.ipnumber>`
+- `Run on Pi` compiles and packages the demo application on your developer machine, deploys it to Raspberry Pi and starts the demo application remotely on the Raspberry Pi
 
+## Restart application on Raspberry Pi
+Once you have started the demo application on Raspberry Pi using `Run on Pi`, you can restart it without recompiling
+- `Rerun version on Pi` starts the demo application remotely on the Raspberry Pi without applying any changes
 
 ## Start application in debugger
-
-To start the application on the Raspberry Pi in debug mode the two run configurations `Debug on Pi` and `Attach to Pi Debugger` are required.
+To start the application on the Raspberry Pi in debug mode, two run configurations are required: `Debug on Pi` and `Attach to Pi Debugger`.
 
 The sequence of starting the run configurations is critical:
-1. Check whether the correct IP-address is set in the run-configurations (both, `Debug on Pi` and `Attach to Pi Debugger`)
-1. Start `Debug on Pi` using the **Run** button
-1. Wait till the console contains the following message: `Listening for transport dt_socket at address: 5005 (Attach debugger)`
+1. Check whether the correct IP-address (or hostname) is set in `pom.xml`
+1. Start `Debug on Pi` using the **Run** button 
+1. Wait till the following message is displayed in console:  
+`Listening for transport dt_socket at address: 5005 (Attach debugger)`
 1. Start `Attach to Pi Debugger` using the **Debug** button
 1. Only now the demo application is started
 
 Now you can use the debugger from IntelliJ IDEA, setting breakpoints and stepping through the application. 
 
-The output to console is in `Debug on Pi Tab` the debugger output in `Attach to Pi Debugger Tab`. You have to switch between these tabs.
+The output to console is in `Debug on Pi` tab  the debugger output in `Attach to Pi Debugger` tab. You have to switch between these tabs.
 
 ## LICENSE
 

pom.xml

@@ -31,7 +31,8 @@
         <launcher.args>--demo</launcher.args>
 
         <!-- Raspberry Remote Deployment -->
-        <pi.ipnumber>pi4j.local</pi.ipnumber>
+        <pi.hostname>pi4j</pi.hostname>
+        <pi.ipnumber>${pi.hostname}.local</pi.ipnumber>  <!-- change to concrete ip-number if hostname is not unique in wlan -->
         <pi.port>22</pi.port>
         <pi.username>pi</pi.username>
         <pi.password>pi4j</pi.password>
@@ -40,10 +41,10 @@
 
         <!-- Project Dependencies -->
         <java.version>17</java.version>
-        <pi4j.version>2.3.0-SNAPSHOT</pi4j.version>
+        <pi4j.version>2.4.0</pi4j.version>
         <picocli.version>4.7.4</picocli.version>
-        <junit.version>5.9.3</junit.version>
-        <mockito.version>5.3.1</mockito.version>
+        <junit.version>5.10.0</junit.version>
+        <mockito.version>5.4.0</mockito.version>
         <ant-jsch.version>1.10.9</ant-jsch.version>
 
         <!-- Maven Dependencies -->
@@ -88,7 +89,6 @@
             <groupId>com.pi4j</groupId>
             <artifactId>pi4j-plugin-mock</artifactId>
             <version>${pi4j.version}</version>
-            <scope>test</scope>
         </dependency>
 
         <!-- Plugin for I2C -->
@@ -138,7 +138,6 @@
                     <release>${java.version}</release>
                     <showDeprecation>true</showDeprecation>
                     <showWarnings>true</showWarnings>
-                    <verbose>false</verbose>
                     <annotationProcessorPaths>
                         <path>
                             <groupId>info.picocli</groupId>
@@ -150,8 +149,8 @@
                         <!-- Used by PicoCLI annotation processor -->
                         <arg>-Aproject=${launcher.class}</arg>
                     </compilerArgs>
-                    <source>17</source>
-                    <target>17</target>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
                 </configuration>
             </plugin>
 
@@ -232,7 +231,6 @@
         <!-- Run the JAR file locally -->
         <profile>
             <id>local-run</id>
-
             <build>
                 <plugins>
                     <plugin>
@@ -258,7 +256,6 @@
         <!-- Transfer and run JAR with dependencies on remote Raspberry -->
         <profile>
             <id>remote-run</id>
-
             <build>
                 <plugins>
                     <plugin>
@@ -296,7 +293,52 @@
                                         <sshexec host="${pi.ipnumber}" port="${pi.port}"
                                                  username="${pi.username}" password="${pi.password}" trust="true"
                                                  failonerror="false" usepty="true" useSystemIn="true"
-                                                 command="sudo java ${pi.jvmOptions} --module-path ${pi.deploydirectory} --module ${launcher.class} ${launcher.args}"/>
+                                                 command="sudo java -XX:+UseZGC -Xmx1G  ${pi.jvmOptions} --module-path ${pi.deploydirectory} --module ${launcher.class} ${launcher.args}"/>
+                                    </target>
+                                </configuration>
+                            </execution>
+                        </executions>
+                        <dependencies>
+                            <dependency>
+                                <groupId>org.apache.ant</groupId>
+                                <artifactId>ant-jsch</artifactId>
+                                <version>${ant-jsch.version}</version>
+                            </dependency>
+                        </dependencies>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+
+        <!-- Rerun the app on remote Raspberry without deploying any changes-->
+        <profile>
+            <id>rerun</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-antrun-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <id>transfer</id>
+                                <phase>package</phase>
+                                <goals>
+                                    <goal>run</goal>
+                                </goals>
+                                <configuration>
+                                    <target>
+                                        <!-- Stop all running Java processes -->
+                                        <sshexec host="${pi.ipnumber}" port="${pi.port}"
+                                                 username="${pi.username}" password="${pi.password}" trust="true"
+                                                 failonerror="false" usepty="true" useSystemIn="false"
+                                                 suppresssystemerr="true" suppresssystemout="true"
+                                                 command="sudo killall -9 java"/>
+
+                                        <!-- Run application on Raspberry Pi -->
+                                        <sshexec host="${pi.ipnumber}" port="${pi.port}"
+                                                 username="${pi.username}" password="${pi.password}" trust="true"
+                                                 failonerror="false" usepty="true" useSystemIn="true"
+                                                 command="sudo java -XX:+UseZGC -Xmx1G  ${pi.jvmOptions} --module-path ${pi.deploydirectory} --module ${launcher.class} ${launcher.args}"/>
                                     </target>
                                 </configuration>
                             </execution>

src/main/java/com/pi4j/catalog/Application.java

@@ -1,8 +1,8 @@
 package com.pi4j.catalog;
 
-import com.pi4j.context.Context;
+import java.time.Duration;
 
-import java.util.logging.Logger;
+import com.pi4j.context.Context;
 
 /**
  * This interface should be implemented by each CrowPi example / application
@@ -40,25 +40,14 @@ default String getDescription() {
      * Utility function to sleep for the specified amount of milliseconds.
      * An {@link InterruptedException} will be catched and ignored while setting the interrupt flag again.
      *
-     * @param milliseconds Time in milliseconds to sleep
+     * @param duration Time to sleep
      */
-    default void delay(long milliseconds) {
+    default void delay(Duration duration) {
         try {
-            Thread.sleep(milliseconds);
+            Thread.sleep(duration.toMillis());
         } catch (InterruptedException e) {
             Thread.currentThread().interrupt();
         }
     }
 
-    /**
-     * Logger instance
-     */
-    Logger logger = Logger.getLogger("Pi4J-App");
-
-    default void logInfo(String msg){
-        logger.info(() -> msg);
-    }
-    default void logError(String msg){
-        logger.severe(() -> msg);
-    }
 }

src/main/java/com/pi4j/catalog/Launcher.java

@@ -1,8 +1,16 @@
 package com.pi4j.catalog;
 
+import picocli.CommandLine;
+import picocli.CommandLine.Command;
+import picocli.CommandLine.Model.CommandSpec;
+
+import java.util.ArrayList;
+import java.util.InputMismatchException;
+import java.util.List;
+import java.util.Scanner;
+
 import com.pi4j.Pi4J;
 import com.pi4j.context.Context;
-import com.pi4j.catalog.applications.*;
 import com.pi4j.library.pigpio.PiGpio;
 import com.pi4j.plugin.linuxfs.provider.i2c.LinuxFsI2CProvider;
 import com.pi4j.plugin.pigpio.provider.gpio.digital.PiGpioDigitalInputProvider;
@@ -11,18 +19,16 @@
 import com.pi4j.plugin.pigpio.provider.serial.PiGpioSerialProvider;
 import com.pi4j.plugin.pigpio.provider.spi.PiGpioSpiProvider;
 import com.pi4j.plugin.raspberrypi.platform.RaspberryPiPlatform;
-import picocli.CommandLine;
-import picocli.CommandLine.Command;
-import picocli.CommandLine.Model.CommandSpec;
-import java.util.*;
+
+import com.pi4j.catalog.applications.*;
 
 @Command(name = "Raspberry Pi Example Launcher", version = "1.0.0", mixinStandardHelpOptions = true)
 public final class Launcher implements Runnable {
     /**
      * This list must contain all applications which should be executable through the launcher.
      * Each class instance must implement the Application interface and gets automatically added as a subcommand.
      */
-    public static final List<Application> APPLICATIONS = new ArrayList<Application>(Arrays.asList(
+    public static final List<Application> APPLICATIONS = List.of(
         new SimpleButton_App(),
         new SimpleLed_App(),
         new Ads1115_App(),
@@ -37,7 +43,7 @@ public final class Launcher implements Runnable {
         new Potentiometer_App(),
         new SerialGps_App(),
         new Servo_App()
-    ));
+    );
 
     /**
      * Demo mode will keep the launcher running forever, allowing the consecutive execution of several applications.
@@ -123,7 +129,7 @@ protected String[] getProviders() {
                         }
                     })
                     .add(PiGpioDigitalInputProvider.newInstance(piGpio),
-                            PiGpioDigitalOutputProvider.newInstance(piGpio),
+                            PiGpioDigitalOutputProvider.newInstance(piGpio) ,
                             PiGpioPwmProvider.newInstance(piGpio),
                             PiGpioSerialProvider.newInstance(piGpio),
                             PiGpioSpiProvider.newInstance(piGpio),