Merge branch 'codeowner' into master

Apply codeowner rules after having tested them on github.com

Reviewed-by: Jonas Tobias Hopusch <git@jotoho.de>

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @jotoho

.gitignore

@@ -31,12 +31,12 @@ hs_err_pid*
 build
 
 # Ignore gradle wrapper
-/gradle
-/gradlew
-/gradlew.bat
+gradlew
+gradlew.bat
 
 # Ignore manual compilation results
 /de/jotoho/
 /META-INF
-/.idea
+/.idea/*
+!/.idea/codeStyles/
 *.zst

.idea/codeStyles/Project.xml

@@ -0,0 +1,84 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <option name="LINE_SEPARATOR" value="&#10;" />
+    <option name="RIGHT_MARGIN" value="100" />
+    <option name="WRAP_WHEN_TYPING_REACHES_RIGHT_MARGIN" value="true" />
+    <option name="ENABLE_SECOND_REFORMAT" value="true" />
+    <option name="SOFT_MARGINS" value="80" />
+    <JavaCodeStyleSettings>
+      <option name="ANNOTATION_PARAMETER_WRAP" value="5" />
+      <option name="ALIGN_MULTILINE_ANNOTATION_PARAMETERS" value="true" />
+      <option name="ALIGN_MULTILINE_TEXT_BLOCKS" value="true" />
+      <option name="JD_ADD_BLANK_AFTER_PARM_COMMENTS" value="true" />
+      <option name="JD_ADD_BLANK_AFTER_RETURN" value="true" />
+      <option name="JD_P_AT_EMPTY_LINES" value="false" />
+      <option name="JD_KEEP_INVALID_TAGS" value="false" />
+      <option name="JD_KEEP_EMPTY_LINES" value="false" />
+      <option name="JD_DO_NOT_WRAP_ONE_LINE_COMMENTS" value="true" />
+      <option name="JD_PARAM_DESCRIPTION_ON_NEW_LINE" value="true" />
+    </JavaCodeStyleSettings>
+    <JetCodeStyleSettings>
+      <option name="CONTINUATION_INDENT_IN_PARAMETER_LISTS" value="false" />
+      <option name="CONTINUATION_INDENT_IN_ARGUMENT_LISTS" value="false" />
+      <option name="CONTINUATION_INDENT_FOR_CHAINED_CALLS" value="false" />
+      <option name="CONTINUATION_INDENT_IN_SUPERTYPE_LISTS" value="false" />
+      <option name="WRAP_EXPRESSION_BODY_FUNCTIONS" value="1" />
+    </JetCodeStyleSettings>
+    <codeStyleSettings language="JAVA">
+      <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1" />
+      <option name="KEEP_BLANK_LINES_IN_CODE" value="1" />
+      <option name="KEEP_BLANK_LINES_BETWEEN_PACKAGE_DECLARATION_AND_HEADER" value="0" />
+      <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="0" />
+      <option name="ALIGN_MULTILINE_CHAINED_METHODS" value="true" />
+      <option name="ALIGN_MULTILINE_PARAMETERS_IN_CALLS" value="true" />
+      <option name="ALIGN_MULTILINE_BINARY_OPERATION" value="true" />
+      <option name="ALIGN_MULTILINE_ASSIGNMENT" value="true" />
+      <option name="ALIGN_MULTILINE_TERNARY_OPERATION" value="true" />
+      <option name="ALIGN_MULTILINE_THROWS_LIST" value="true" />
+      <option name="ALIGN_MULTILINE_EXTENDS_LIST" value="true" />
+      <option name="ALIGN_MULTILINE_ARRAY_INITIALIZER_EXPRESSION" value="true" />
+      <option name="CALL_PARAMETERS_WRAP" value="5" />
+      <option name="METHOD_PARAMETERS_WRAP" value="5" />
+      <option name="RESOURCE_LIST_WRAP" value="5" />
+      <option name="EXTENDS_LIST_WRAP" value="1" />
+      <option name="THROWS_LIST_WRAP" value="1" />
+      <option name="EXTENDS_KEYWORD_WRAP" value="1" />
+      <option name="THROWS_KEYWORD_WRAP" value="1" />
+      <option name="METHOD_CALL_CHAIN_WRAP" value="2" />
+      <option name="BINARY_OPERATION_WRAP" value="1" />
+      <option name="TERNARY_OPERATION_WRAP" value="5" />
+      <option name="TERNARY_OPERATION_SIGNS_ON_NEXT_LINE" value="true" />
+      <option name="KEEP_SIMPLE_BLOCKS_IN_ONE_LINE" value="true" />
+      <option name="KEEP_SIMPLE_METHODS_IN_ONE_LINE" value="true" />
+      <option name="KEEP_SIMPLE_LAMBDAS_IN_ONE_LINE" value="true" />
+      <option name="KEEP_SIMPLE_CLASSES_IN_ONE_LINE" value="true" />
+      <option name="FOR_STATEMENT_WRAP" value="5" />
+      <option name="ARRAY_INITIALIZER_WRAP" value="5" />
+      <option name="ARRAY_INITIALIZER_LBRACE_ON_NEXT_LINE" value="true" />
+      <option name="ARRAY_INITIALIZER_RBRACE_ON_NEXT_LINE" value="true" />
+      <option name="ASSIGNMENT_WRAP" value="1" />
+      <option name="WRAP_COMMENTS" value="true" />
+      <option name="ASSERT_STATEMENT_WRAP" value="1" />
+      <option name="WRAP_LONG_LINES" value="true" />
+      <option name="PARAMETER_ANNOTATION_WRAP" value="5" />
+      <option name="VARIABLE_ANNOTATION_WRAP" value="5" />
+      <option name="ENUM_CONSTANTS_WRAP" value="5" />
+      <option name="KEEP_BUILDER_METHODS_INDENTS" value="true" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="kotlin">
+      <option name="ALIGN_MULTILINE_PARAMETERS_IN_CALLS" value="true" />
+      <option name="ALIGN_MULTILINE_EXTENDS_LIST" value="true" />
+      <option name="CALL_PARAMETERS_WRAP" value="5" />
+      <option name="METHOD_PARAMETERS_WRAP" value="5" />
+      <option name="EXTENDS_LIST_WRAP" value="5" />
+      <option name="METHOD_CALL_CHAIN_WRAP" value="5" />
+      <option name="ASSIGNMENT_WRAP" value="5" />
+      <option name="PARAMETER_ANNOTATION_WRAP" value="5" />
+      <option name="VARIABLE_ANNOTATION_WRAP" value="5" />
+      <option name="ENUM_CONSTANTS_WRAP" value="5" />
+    </codeStyleSettings>
+  </code_scheme>
+</component>

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>

AUTHORS.md

@@ -0,0 +1,16 @@
+# waituntil Contributors / Authors
+
+By adding their names to this document, contributors agree to license all of their
+contributions and patches to the waituntil project [under the AGPL version 3 or later.](./LICENSE.md)
+
+Contributors may choose to supply either their complete legal name, online pseudonym or both.
+At least one is required.
+
+The email, website and notes fields are optional but contributors are encouraged
+to supply at least one reliable method of communication.
+
+## Maintainer(s)
+
+| full name | pseudonym | email | website | notes |
+|-|:-:|-:|-:|-|
+| Jonas Tobias Hopusch | jotoho | [contact@jotoho.de](mailto:contact@jotoho.de) | [www.jotoho.de](https://www.jotoho.de/) | original creator |

README.md

@@ -14,11 +14,25 @@ the next command to run. The timestamp can be passed in the formats `HH:MM` or `
 be in the 24-hour system. Passing dates is not supported but entering a time that has already passed
 will make the software wait until that time on the following day.
 
+## Contributing / Submitting Feedback
+
+The [canonical home of this project](https://gitea.jotoho.de/jotoho/waituntil/) is 
+[on my personal Gitea-instance](https://gitea.jotoho.de/) but since it has registration
+turned off, collaborating there is difficult.
+
+If you have not been given an account on [gitea.jotoho.de](https://gitea.jotoho.de/)
+then you can alternatively send me feedback, bug reports or patches [via email to
+contact@jotoho.de](mailto:contact@jotoho.de).
+Should that fail, there may be alternative ways to contact me listed on
+[my personal website.](https://www.jotoho.de/)
+
+In the future, I may also decide to create a mirror for this project on GitHub, gitlab.com or similar.
+
 ## Copyright / Licensing
 
 ```
 waituntil - a tool for delaying command execution until the specified time
-Copyright (C) 2021 Jonas Tobias Hopusch
+Copyright (C) 2022 Jonas Tobias Hopusch
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License as

build.gradle.kts

@@ -1,16 +1,29 @@
+import java.io.ByteArrayOutputStream
+import java.io.OutputStream
+
 plugins {
     // Apply the application plugin to add support for building a CLI application in Java.
     application
+    java
 
-    // For generating fat jars
-    id("com.github.johnrengelman.shadow") version "latest.release"
+    id("com.github.johnrengelman.shadow") version "7.1.2"
+}
+
+repositories {
+    // Use Maven Central for resolving dependencies.
+    mavenCentral()
+}
+
+dependencies {
+    implementation(group = "commons-cli", name = "commons-cli", version = "1.5.0")
 }
 
 fun versionBanner(): String {
-    val os = org.apache.commons.io.output.ByteArrayOutputStream()
+    val os = ByteArrayOutputStream()
     project.exec {
-        commandLine = "git describe --always --dirty".split(" ")
+        commandLine = "git describe --tags --always --dirty --abbrev".split(" ")
         standardOutput = os
+        errorOutput = OutputStream.nullOutputStream()
     }
     return String(os.toByteArray()).trim()
 }
@@ -18,11 +31,6 @@ fun versionBanner(): String {
 group = "de.jotoho"
 version = versionBanner()
 
-repositories {
-    // Use Maven Central for resolving dependencies.
-    mavenCentral()
-}
-
 java {
     sourceCompatibility = JavaVersion.VERSION_17
     targetCompatibility = JavaVersion.VERSION_17
@@ -30,11 +38,10 @@ java {
 
 tasks.jar {
     manifest {
-        attributes(
-            "Implementation-Title" to project.name,
-            "Implementation-Version" to project.version,
-            "Main-Class" to "de.jotoho.waituntil.Main",
-            "Main-Module" to "de.jotoho.waituntil.main"
+        attributes("Implementation-Title" to project.name,
+                   "Implementation-Version" to project.version,
+                   "Main-Class" to "de.jotoho.waituntil.Main"
+            //"Main-Module" to "de.jotoho.waituntil.main"
         )
     }
 }
@@ -42,5 +49,5 @@ tasks.jar {
 application {
     // Define the main class for the application.
     mainClass.set("de.jotoho.waituntil.Main")
-    mainModule.set("de.jotoho.waituntil.main")
+    //mainModule.set("de.jotoho.waituntil.main")
 }

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1 @@
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip

src/main/java/de/jotoho/waituntil/AppOptions.java

@@ -0,0 +1,39 @@
+package de.jotoho.waituntil;
+
+/*
+    waituntil - a tool for delaying command execution until the specified time
+    Copyright (C) 2022 Jonas Tobias Hopusch
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
+
+final class AppOptions {
+    public final Option help = Option.builder()
+                                     .argName("h")
+                                     .longOpt("help")
+                                     .desc("Shows this help message and exits")
+                                     .build();
+
+    public final Option version = Option.builder()
+                                        .argName("v")
+                                        .longOpt("version")
+                                        .desc("Shows version information and exits")
+                                        .build();
+
+    public final Options options = new Options().addOption(help)
+                                                .addOption(version);
+}

src/main/java/de/jotoho/waituntil/GlobalConf.java

@@ -1,10 +1,30 @@
 package de.jotoho.waituntil;
 
+/*
+    waituntil - a tool for delaying command execution until the specified time
+    Copyright (C) 2022 Jonas Tobias Hopusch
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import java.util.Locale;
 
 public record GlobalConf() {
     public static final String langGerman = "de";
-    public static final String applicationOutputLanguage = (Locale.getDefault().getLanguage().equals(Locale.GERMAN.getLanguage()))
-                                             ? Locale.GERMAN.getLanguage()
-                                             : Locale.ENGLISH.getLanguage();
+    public static final String applicationOutputLanguage = (Locale.getDefault()
+                                                                  .getLanguage()
+                                                                  .equals(Locale.GERMAN.getLanguage()))
+                                                           ? Locale.GERMAN.getLanguage()
+                                                           : Locale.ENGLISH.getLanguage();
 }

src/main/java/de/jotoho/waituntil/Main.java

@@ -1,62 +1,114 @@
 package de.jotoho.waituntil;
 
-import java.util.HashSet;
-import java.util.Map;
+/*
+    waituntil - a tool for delaying command execution until the specified time
+    Copyright (C) 2022 Jonas Tobias Hopusch
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
 
 import static de.jotoho.waituntil.GlobalConf.applicationOutputLanguage;
+import static java.lang.System.Logger.Level;
 
-// This file contains the main function and other utility function necessary for interpreting the terminal arguments.
+// This file contains the main function and other utility function necessary
+// for interpreting the terminal arguments.
 // See README.md and LICENSE.md for license information
 // Author: Jonas Tobias Hopusch (@jotoho)
 
 public final class Main {
-    public static void main(final String[] args) {
-        final var optionDictionary = Map.of("-h", "--help", "-v", "--version");
+    private static final System.Logger logger = System.getLogger("main");
 
-        final var options = new HashSet<String>();
-        final var words = new HashSet<String>();
+    private static void printVersionInformation() {
+        final var thisPackage = Main.class.getPackage();
+        final var appVersion = thisPackage.getImplementationVersion() != null
+                               ? thisPackage.getImplementationVersion()
+                               : "version unknown";
 
-        for (final String arg : args) {
-            if (arg.startsWith("--")) {
-                options.add(arg.substring(2));
-            } else if (arg.startsWith("-")) {
-                if (optionDictionary.containsKey(arg))
-                    options.add(optionDictionary.get(arg).substring(2));
-                else
-                    System.err.println("Short-hand '$arg' does not exist. Ignoring!");
-            } else {
-                words.add(arg);
-            }
+        System.out.println("waituntil " + appVersion);
+        System.out.println("""
+                           Project Repository: https://gitea.jotoho.de/jotoho/waituntil
+
+                           This program is free software: you can redistribute it and/or modify it under the terms of the
+                           GNU General Public License as published by the Free Software Foundation, either version 3 of the
+                           License, or (at your option) any later version.
+
+                           This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+                           without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+                           See the GNU General Public License for more details.""");
+    }
+
+    private static void printHelpInformation() {
+        switch (applicationOutputLanguage) {
+            case GlobalConf.langGerman -> logger.log(Level.ERROR,
+                                                     "Hilfe kommt noch. (Nicht " +
+                                                     "implementiert)");
+            default -> logger.log(Level.ERROR, "Help is yet to come. (Not implemented)");
         }
+    }
 
-        if (options.contains("help")) {
-            switch (applicationOutputLanguage) {
-                case GlobalConf.langGerman -> System.out.println("Hilfe kommt noch. (Nicht implementiert)");
-                default -> System.out.println("Help is yet to come. (Not implemented)");
-            }
-        } else if (options.contains("version")) {
-            final var thisPackage = Main.class.getPackage();
-            final var appVersion = thisPackage.getImplementationVersion() != null
-                    ? thisPackage.getImplementationVersion()
-                    : "version unknown";
-            System.out.println("waituntil " + appVersion);
-            System.out.println("""
-
-                    This program is free software: you can redistribute it and/or modify it under the terms of the
-                    GNU General Public License as published by the Free Software Foundation, either version 3 of the
-                    License, or (at your option) any later version.
-
-                    This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
-                    without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-                    See the GNU General Public License for more details.""");
-        } else if (words.size() == 1) {
-            final var target = TimeCalculator.calculateAndAnnounceTargetTime(words.iterator().next());
-            Sleep.waitUntilTimeStamp(target);
-        } else {
-            switch (applicationOutputLanguage) {
-                case GlobalConf.langGerman -> System.err.println("FATAL: Es wurde exact ein nicht-flag Argument erwartet. (" + words.size() + " erhalten)");
-                default -> System.err.println("FATAL: Expected one non-flag argument. (Got " + words.size() + ")");
+    private static CommandLine parseArgs(final Options options, final String[] args)
+        throws ParseException {
+        return DefaultParser.builder()
+                            .setStripLeadingAndTrailingQuotes(true)
+                            .build()
+                            .parse(options, args);
+    }
+
+    public synchronized static void main(final String[] args) {
+        // Retrieve defined CLI options
+        final var appOptions = new AppOptions();
+
+        try {
+            // Parse CLI
+            final var parsedArguments = parseArgs(appOptions.options, args);
+            final var userData = parsedArguments.getArgs();
+
+            // Differentiate between usage scenarios
+            if (parsedArguments.hasOption(appOptions.help)) {
+                printHelpInformation();
+            } else if (parsedArguments.hasOption(appOptions.version)) {
+                printVersionInformation();
+            } else if (userData.length == 0) {
+                switch (applicationOutputLanguage) {
+                    case GlobalConf.langGerman -> logger.log(Level.ERROR,
+                                                             "Es wurde keine Uhrzeit " +
+                                                             "angegeben.");
+                    default -> logger.log(Level.ERROR, "No target time was provided.");
+                }
+                System.exit(1);
+            } else if (userData.length > 1) {
+                switch (applicationOutputLanguage) {
+                    case GlobalConf.langGerman -> logger.log(Level.ERROR,
+                                                             "Zu viele Argumente " +
+                                                             "wurden angegeben.");
+                    default -> logger.log(Level.ERROR, "Too many arguments provided.");
+                }
+                System.exit(1);
+            } else {
+                final var target = TimeCalculator.calculateAndAnnounceTargetTime(userData[0]);
+                Sleep.waitUntilTimeStamp(target);
             }
+        } catch (final ParseException e) {
+            System.getLogger("main")
+                  .log(Level.ERROR,
+                       "Parsing of arguments failed and the program cannot continue.",
+                       e);
             System.exit(1);
         }
     }

src/main/java/de/jotoho/waituntil/Sleep.java

@@ -1,25 +1,45 @@
 package de.jotoho.waituntil;
 
+/*
+    waituntil - a tool for delaying command execution until the specified time
+    Copyright (C) 2022 Jonas Tobias Hopusch
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import java.time.Instant;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.format.FormatStyle;
 import java.time.temporal.ChronoUnit;
-import java.util.*;
+import java.util.TimeZone;
 
-import java.lang.Math;
+import static java.lang.System.Logger.Level;
 
 public final class Sleep {
     public static void waitUntilTimeStamp(ZonedDateTime timestamp) {
         try {
-            Thread.sleep(Math.max(0, Instant.now().until(timestamp, ChronoUnit.MILLIS)));
+            Thread.sleep(Math.max(0,
+                                  Instant.now()
+                                         .until(timestamp, ChronoUnit.MILLIS)));
         } catch (final InterruptedException ignored) {
         }
 
-        final String formattedTimeStamp =
-                DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG)
-                        .withZone(TimeZone.getDefault().toZoneId())
-                        .format(Instant.now());
+        final String formattedTimeStamp = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG)
+                                                           .withZone(TimeZone.getDefault()
+                                                                             .toZoneId())
+                                                           .format(Instant.now());
 
         final String msg = switch (GlobalConf.applicationOutputLanguage) {
             case GlobalConf.langGerman -> "Erfolgreich bis %s gewartet!";
@@ -27,6 +47,7 @@ public final class Sleep {
         };
 
         final String msgWithData = msg.formatted(formattedTimeStamp);
-        System.err.println(msgWithData);
+        System.getLogger("sleep")
+              .log(Level.INFO, msgWithData);
     }
 }

src/main/java/de/jotoho/waituntil/TimeCalculator.java

@@ -1,39 +1,57 @@
 package de.jotoho.waituntil;
 
+/*
+    waituntil - a tool for delaying command execution until the specified time
+    Copyright (C) 2022 Jonas Tobias Hopusch
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import java.time.Instant;
 import java.time.LocalDate;
 import java.time.LocalTime;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.format.FormatStyle;
-import java.util.*;
+import java.util.TimeZone;
+
+import static java.lang.System.Logger.Level;
 
 public final class TimeCalculator {
 
     public static ZonedDateTime calculateAndAnnounceTargetTime(final String userTimeInputRaw) {
         final var userTimeInputRelative = LocalTime.parse(userTimeInputRaw);
-        final var userTimeInputAbsolute =
-                ZonedDateTime.of(
-                        LocalDate.now(),
-                        userTimeInputRelative,
-                        TimeZone.getDefault().toZoneId()
-                );
+        final var userTimeInputAbsolute = ZonedDateTime.of(LocalDate.now(),
+                                                           userTimeInputRelative,
+                                                           TimeZone.getDefault()
+                                                                   .toZoneId());
 
-        final var userTimeInputFinal = (Instant.now().isBefore(userTimeInputAbsolute.toInstant()))
-                                                ? userTimeInputAbsolute
-                                                : userTimeInputAbsolute.plusDays(1);
+        final var userTimeInputFinal = (Instant.now()
+                                               .isBefore(userTimeInputAbsolute.toInstant()))
+                                       ? userTimeInputAbsolute
+                                       : userTimeInputAbsolute.plusDays(1);
 
         final var formattedTimeStamp =
-                userTimeInputFinal.format(
-                        DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG)
-                );
+            userTimeInputFinal.format(DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG));
 
         final String msg = switch (GlobalConf.applicationOutputLanguage) {
-            case GlobalConf.langGerman -> "Dieses Program wird bis zum %s warten."
-                                            .formatted(formattedTimeStamp);
+            case GlobalConf.langGerman -> ("Dieses Program wird bis zum %s warten.").formatted(
+                formattedTimeStamp);
             default -> "WaitUntil will suspend until %s".formatted(formattedTimeStamp);
         };
-        System.out.println(msg);
+        System.getLogger("timecalculator")
+              .log(Level.INFO, msg);
 
         return userTimeInputFinal;
     }

src/main/java/module-info.java

@@ -1,2 +0,0 @@
-module de.jotoho.waituntil.main {
-}