Creating Repo

.idea/compiler.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="Internetworking" />
+      </profile>
+    </annotationProcessing>
+  </component>
+</project>
\ No newline at end of file

.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file

.idea/jarRepositories.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
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+      <option name="name" value="Central Repository" />
+      <option name="url" value="https://repo.maven.apache.org/maven2" />
+    </remote-repository>
+    <remote-repository>
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+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="18" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file

.idea/uiDesigner.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.svg" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
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+        </initial-values>
+      </item>
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+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
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+          <property name="text" value="Label" />
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+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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+      </item>
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+          <preferred-size width="150" height="-1" />
+        </default-constraints>
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+      </item>
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+      </item>
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+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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+      </item>
+    </group>
+  </component>
+</project>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

.idea/workspace.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="SELECTIVE" />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="ec1f6817-32e7-4584-917c-27c18486f51e" name="Changes" comment="Simple test examples">
+      <change afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/encodings.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/jarRepositories.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/.idea/uiDesigner.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/MonolithicEchoPhyClient.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/MonolithicEchoPhyServer.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/PhyAllInOne.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/PhyPingClient.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/PhyPingServer.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/SLPClient.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/SLPDirectClient.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/SLPStudentClient.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/apps/SLPStudentClient.java" afterDir="false" />
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+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/SimplexPhyClient.java" beforeDir="false" />
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+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/UDPClientRunnable.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/UDPEchoClient.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/UDPEchoServer.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/apps/UDPServerRunnable.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/slp/SLPDataMsg.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/slp/SLPDataMsg.java" afterDir="false" />
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+      <change beforePath="$PROJECT_DIR$/src/main/java/slp/SLPMsg.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/slp/SLPMsg.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/slp/SLPProtocol.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/slp/SLPProtocol.java" afterDir="false" />
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+      <change beforePath="$PROJECT_DIR$/src/main/java/slp/SLPRegResponseMsg.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/slp/SLPRegResponseMsg.java" afterDir="false" />
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+      <change beforePath="$PROJECT_DIR$/src/test/java/phy/SLPClientRegisterTask5Test.java" beforeDir="false" />
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+      <change beforePath="$PROJECT_DIR$/src/test/java/phy/SLPSwitchRegistrationHandlingTask4Test.java" beforeDir="false" />
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+    <option name="LAST_RESOLUTION" value="IGNORE" />
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+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
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+        <option value="Class" />
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+    <option name="RECENT_BRANCH_BY_REPOSITORY">
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+      </map>
+    </option>
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+    <option name="UPDATE_TYPE" value="REBASE" />
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+  <component name="MarkdownSettingsMigration">
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+  </component>
+  <component name="MavenImportPreferences">
+    <option name="generalSettings">
+      <MavenGeneralSettings>
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+    <option name="showLibraryContents" value="true" />
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+    "node.js.detected.package.eslint": "true",
+    "node.js.detected.package.tslint": "true",
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+    "vue.rearranger.settings.migration": "true"
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+}]]></component>
+  <component name="RecentsManager">
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+      <recent name="exceptions" />
+    </key>
+    <key name="MoveFile.RECENT_KEYS">
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+      <recent name="$PROJECT_DIR$/src/main/java/exceptions" />
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+    </key>
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+      <recent name="phy" />
+    </key>
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+      <recent name="slp" />
+    </key>
+  </component>
+  <component name="RunManager" selected="JUnit.SLPClientRegisterTask2Test">
+    <configuration name="PhyAllInOne" type="Application" factoryName="Application" singleton="false" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="apps.PhyAllInOne" />
+      <module name="Internetworking" />
+      <option name="PROGRAM_PARAMETERS" value="2000" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="apps.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="SLPStudentClient" type="Application" factoryName="Application" singleton="false" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="apps.SLPStudentClient" />
+      <module name="Internetworking" />
+      <option name="PROGRAM_PARAMETERS" value="5000" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="apps.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="SimplexPhyClient" type="Application" factoryName="Application" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="apps.SimplexPhyClient" />
+      <module name="Internetworking" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="apps.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="UDPAllInOne" type="Application" factoryName="Application" singleton="false" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="apps.UDPAllInOne" />
+      <module name="Internetworking" />
+      <option name="PROGRAM_PARAMETERS" value="1000" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="apps.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="UDPEchoClient" type="Application" factoryName="Application" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="apps.UDPEchoClient" />
+      <module name="Internetworking" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="apps.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="PhyMsgTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="Internetworking" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="phy.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="phy" />
+      <option name="MAIN_CLASS_NAME" value="phy.PhyMsgTest" />
+      <option name="TEST_OBJECT" value="class" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="PhyMsgTest.createTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="Internetworking" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="phy.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="phy" />
+      <option name="MAIN_CLASS_NAME" value="phy.PhyMsgTest" />
+      <option name="METHOD_NAME" value="createTest" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="SLPClientRegisterTask2Test" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="Internetworking" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="phy.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="phy" />
+      <option name="MAIN_CLASS_NAME" value="phy.SLPClientRegisterTask2Test" />
+      <option name="TEST_OBJECT" value="class" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="SLPClientRegisterTask2Test.RegistrationSuccessfulTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="Internetworking" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="phy.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="phy" />
+      <option name="MAIN_CLASS_NAME" value="phy.SLPClientRegisterTask2Test" />
+      <option name="METHOD_NAME" value="RegistrationSuccessfulTest" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="SLPClientRegisterTask2Test.testRegistrationFailedExceptionIsThrownWhenReceivingAMalformedMessage" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="Internetworking" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="phy.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="phy" />
+      <option name="MAIN_CLASS_NAME" value="phy.SLPClientRegisterTask2Test" />
+      <option name="METHOD_NAME" value="testRegistrationFailedExceptionIsThrownWhenReceivingAMalformedMessage" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <list>
+      <item itemvalue="Application.SimplexPhyClient" />
+      <item itemvalue="Application.UDPEchoClient" />
+      <item itemvalue="Application.PhyAllInOne" />
+      <item itemvalue="Application.SLPStudentClient" />
+      <item itemvalue="Application.UDPAllInOne" />
+      <item itemvalue="JUnit.PhyMsgTest" />
+      <item itemvalue="JUnit.SLPClientRegisterTask2Test" />
+      <item itemvalue="JUnit.PhyMsgTest.createTest" />
+      <item itemvalue="JUnit.SLPClientRegisterTask2Test.testRegistrationFailedExceptionIsThrownWhenReceivingAMalformedMessage" />
+      <item itemvalue="JUnit.SLPClientRegisterTask2Test.RegistrationSuccessfulTest" />
+    </list>
+    <recent_temporary>
+      <list>
+        <item itemvalue="JUnit.SLPClientRegisterTask2Test" />
+        <item itemvalue="JUnit.SLPClientRegisterTask2Test.RegistrationSuccessfulTest" />
+        <item itemvalue="JUnit.PhyMsgTest" />
+        <item itemvalue="JUnit.SLPClientRegisterTask2Test.testRegistrationFailedExceptionIsThrownWhenReceivingAMalformedMessage" />
+        <item itemvalue="JUnit.PhyMsgTest.createTest" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="ec1f6817-32e7-4584-917c-27c18486f51e" name="Changes" comment="" />
+      <created>1660292970805</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1660292970805</updated>
+      <workItem from="1682064546786" duration="1614000" />
+    </task>
+    <task id="LOCAL-00001" summary="New project structure">
+      <created>1660550384862</created>
+      <option name="number" value="00001" />
+      <option name="presentableId" value="LOCAL-00001" />
+      <option name="project" value="LOCAL" />
+      <updated>1660550384862</updated>
+    </task>
+    <task id="LOCAL-00002" summary="Fixed string length problem">
+      <created>1664359806815</created>
+      <option name="number" value="00002" />
+      <option name="presentableId" value="LOCAL-00002" />
+      <option name="project" value="LOCAL" />
+      <updated>1664359806815</updated>
+    </task>
+    <task id="LOCAL-00003" summary="Clean up exception handling">
+      <created>1664360362642</created>
+      <option name="number" value="00003" />
+      <option name="presentableId" value="LOCAL-00003" />
+      <option name="project" value="LOCAL" />
+      <updated>1664360362642</updated>
+    </task>
+    <task id="LOCAL-00004" summary="Clean up exception handling">
+      <created>1664360792737</created>
+      <option name="number" value="00004" />
+      <option name="presentableId" value="LOCAL-00004" />
+      <option name="project" value="LOCAL" />
+      <updated>1664360792737</updated>
+    </task>
+    <task id="LOCAL-00005" summary="Fix typo">
+      <created>1664364310955</created>
+      <option name="number" value="00005" />
+      <option name="presentableId" value="LOCAL-00005" />
+      <option name="project" value="LOCAL" />
+      <updated>1664364310955</updated>
+    </task>
+    <task id="LOCAL-00006" summary="make socket variable final">
+      <created>1664364412421</created>
+      <option name="number" value="00006" />
+      <option name="presentableId" value="LOCAL-00006" />
+      <option name="project" value="LOCAL" />
+      <updated>1664364412421</updated>
+    </task>
+    <task id="LOCAL-00007" summary="code cleanup">
+      <created>1665125761069</created>
+      <option name="number" value="00007" />
+      <option name="presentableId" value="LOCAL-00007" />
+      <option name="project" value="LOCAL" />
+      <updated>1665125761069</updated>
+    </task>
+    <task id="LOCAL-00008" summary="trim strings correctly">
+      <created>1665134892670</created>
+      <option name="number" value="00008" />
+      <option name="presentableId" value="LOCAL-00008" />
+      <option name="project" value="LOCAL" />
+      <updated>1665134892670</updated>
+    </task>
+    <task id="LOCAL-00009" summary="fix class name">
+      <created>1665164788481</created>
+      <option name="number" value="00009" />
+      <option name="presentableId" value="LOCAL-00009" />
+      <option name="project" value="LOCAL" />
+      <updated>1665164788481</updated>
+    </task>
+    <task id="LOCAL-00010" summary="remove empty import">
+      <created>1665164830938</created>
+      <option name="number" value="00010" />
+      <option name="presentableId" value="LOCAL-00010" />
+      <option name="project" value="LOCAL" />
+      <updated>1665164830938</updated>
+    </task>
+    <task id="LOCAL-00011" summary="add IDEA / Maven files">
+      <created>1665164999878</created>
+      <option name="number" value="00011" />
+      <option name="presentableId" value="LOCAL-00011" />
+      <option name="project" value="LOCAL" />
+      <updated>1665164999878</updated>
+    </task>
+    <task id="LOCAL-00012" summary="TCP show case for class">
+      <created>1682066038528</created>
+      <option name="number" value="00012" />
+      <option name="presentableId" value="LOCAL-00012" />
+      <option name="project" value="LOCAL" />
+      <updated>1682066038528</updated>
+    </task>
+    <task id="LOCAL-00013" summary="Simple test examples">
+      <created>1682066118401</created>
+      <option name="number" value="00013" />
+      <option name="presentableId" value="LOCAL-00013" />
+      <option name="project" value="LOCAL" />
+      <updated>1682066118401</updated>
+    </task>
+    <option name="localTasksCounter" value="14" />
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
+  </component>
+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="RECENT_FILTERS">
+      <map>
+        <entry key="Branch">
+          <value>
+            <list>
+              <RecentGroup>
+                <option name="FILTER_VALUES">
+                  <option value="master" />
+                </option>
+              </RecentGroup>
+              <RecentGroup>
+                <option name="FILTER_VALUES">
+                  <option value="true_stack" />
+                </option>
+              </RecentGroup>
+            </list>
+          </value>
+        </entry>
+      </map>
+    </option>
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State>
+              <option name="FILTERS">
+                <map>
+                  <entry key="branch">
+                    <value>
+                      <list>
+                        <option value="master" />
+                      </list>
+                    </value>
+                  </entry>
+                </map>
+              </option>
+            </State>
+          </value>
+        </entry>
+      </map>
+    </option>
+  </component>
+  <component name="VcsManagerConfiguration">
+    <MESSAGE value="New project structure" />
+    <MESSAGE value="Fixed string length problem" />
+    <MESSAGE value="Clean up exception handling" />
+    <MESSAGE value="Fix typo" />
+    <MESSAGE value="make socket variable final" />
+    <MESSAGE value="code cleanup" />
+    <MESSAGE value="trim strings correctly" />
+    <MESSAGE value="fix class name" />
+    <MESSAGE value="remove empty import" />
+    <MESSAGE value="add IDEA / Maven files" />
+    <MESSAGE value="TCP show case for class" />
+    <MESSAGE value="Simple test examples" />
+    <option name="LAST_COMMIT_MESSAGE" value="Simple test examples" />
+  </component>
+</project>
\ No newline at end of file

pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>de.hsrt</groupId>
+    <artifactId>Internetworking</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>18</maven.compiler.source>
+        <maven.compiler.target>18</maven.compiler.target>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+            <version>4.6.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-inline</artifactId>
+            <version>4.6.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.9.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>5.9.0</version>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/apps/SLPStudentClient.java

+package apps;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.InetAddress;
+
+import core.Msg;
+import phy.PhyProtocol;
+import slp.SLPConfiguration;
+import slp.SLPProtocol;
+import exceptions.*;
+
+public class SLPStudentClient implements Runnable {
+	private static final String SWITCHNAME = "localhost";
+	SLPProtocol ethP;
+
+	public SLPStudentClient(SLPProtocol eth) {
+		this.ethP = eth;
+	}
+
+	public static void main(String[] args) {
+		if (args.length != 1) {
+			System.out.println("Provide an address identifier (int) from range [5000:65534]");
+			return;
+		}
+		int phyPortNumber = Integer.parseInt(args[0]);
+		if(phyPortNumber < 5000 || phyPortNumber > 65534) {
+			System.out.println("Invalid address identifier! Range [5000:65534]");
+			return;
+		}
+
+		// Set up the virtual link protocol
+		PhyProtocol phy = new PhyProtocol(phyPortNumber);
+
+		// Create socket 
+		SLPProtocol slp;
+		
+		// Start Protocol and register client
+		try {
+			slp = new SLPProtocol(phyPortNumber, false, phy);
+			slp.register(InetAddress.getByName(SWITCHNAME), SLPSwitch.SWITCHPORT);
+		} catch (IWProtocolException | IOException e) {
+			e.printStackTrace();
+			return;
+		}
+		
+		// Start the receiver side of the app
+		SLPStudentClient recv = new SLPStudentClient(slp);
+		Thread recvT = new Thread(recv);
+		recvT.start();
+
+		// Read data from user to send to client
+		BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
+		boolean eof = false;
+		System.out.println("Input format: <dst> <message>");
+		while (!eof) {
+			try {
+				System.out.println("Message Destination: ");
+				String sentence = null;
+				sentence = inFromUser.readLine();
+				int dst = Integer.parseInt(sentence.trim());
+
+				System.out.println("Message: ");
+				sentence = null;
+				sentence = inFromUser.readLine();
+
+				SLPConfiguration config = new SLPConfiguration(dst, phy);
+				slp.send(sentence.trim(), config);
+			} catch (IOException e) {
+				e.printStackTrace();
+			} catch (IWProtocolException e) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+
+	// Receiver thread
+	@Override
+	public void run() {
+		boolean eof = false;
+		
+		while (!eof) {
+			try {
+				Msg msg = this.ethP.receive();
+				String sentence = msg.getData().trim();
+					System.out.println("Received message: " + sentence);
+			} catch (IOException e) {
+				e.printStackTrace();
+			} catch (IWProtocolException e) {
+				e.printStackTrace();
+			}
+		}
+	}
+}
+

src/main/java/apps/SLPSwitch.java

+package apps;
+
+import java.io.IOException;
+
+import phy.PhyProtocol;
+import slp.*;
+import exceptions.*;
+
+public class SLPSwitch {
+
+	protected static final int SWITCHPORT = 3027;
+
+	public static void main(String[] args) throws IWProtocolException {
+		/* Task 3.1
+		   Setup protocol stack and call storeAndForward() method of SLPProtocol */
+
+	}
+}

src/main/java/core/Configuration.java

+package core;
+
+/*
+ * Abstract configuration class
+ * nextLowerProtocol attribute is currently unused (ignore)
+ */
+public class Configuration {
+	protected Protocol nextLowerProtocol;
+	
+	public Configuration(Protocol proto) {
+		this.nextLowerProtocol = proto;
+	}
+
+	public Protocol getNextLowerProtocol() {
+		return nextLowerProtocol;
+	}
+
+	private void setNextLowerProtocol(Protocol nextLowerProtocol) {
+		this.nextLowerProtocol = nextLowerProtocol;
+	}
+}

src/main/java/core/Msg.java

+package core;
+
+import exceptions.IWProtocolException;
+
+/* 
+ * Msg base class (abstract)
+ */
+public abstract class Msg {
+	protected String data;
+	protected byte[] dataBytes;
+	protected Configuration config;
+	
+	public byte[] getDataBytes() {
+		return this.dataBytes;
+	}
+	
+	public int getLength() {
+		return this.dataBytes.length;
+	}
+	
+	public String getData() {
+		return this.data;
+	}
+	
+	public void setData(String data) {
+		this.data = data;
+	}
+	
+	public Configuration getConfiguration() {
+		return this.config;
+	}
+	
+	protected abstract void create(String sentence);
+	protected abstract Msg parse(String sentence) throws IWProtocolException;
+	
+	
+	public void printDataBytes() {
+		String msgString = new String(this.dataBytes);
+		System.out.println(msgString);
+	}
+}

src/main/java/core/Protocol.java

+package core;
+
+import java.io.IOException;
+
+import exceptions.IWProtocolException;
+
+/*
+ * Protocol base class (abstract)
+ */
+public abstract class Protocol {
+	public abstract void send(String s, Configuration config) throws IOException, IWProtocolException;
+	public abstract Msg receive() throws IOException, IWProtocolException;
+
+}

src/main/java/exceptions/BadChecksumException.java

+package exceptions;
+
+public class BadChecksumException extends IWProtocolException {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -6481772554012497583L;
+
+}

src/main/java/exceptions/IWProtocolException.java

+package exceptions;
+
+public abstract class IWProtocolException extends Exception {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -7002466204521265834L;
+
+}

src/main/java/exceptions/IllegalAddrException.java

+package exceptions;
+
+import exceptions.IWProtocolException;
+
+public class IllegalAddrException extends IWProtocolException {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -2112808760774454967L;
+
+}