diff --git a/assignments/nbproject/build-impl.xml b/assignments/nbproject/build-impl.xml
index 3221aae8dacbee77830d45642fa309fade6de983..77caa2d66ba6c93c577aace73c7c4219709196c6 100644
--- a/assignments/nbproject/build-impl.xml
+++ b/assignments/nbproject/build-impl.xml
@@ -119,7 +119,43 @@ is divided into following sections:
         <property name="module.name" value=""/>
     </target>
     <target depends="-pre-init,-init-private,-init-user,-init-project,-init-macrodef-property,-init-modules-supported" name="-do-init">
-        <property name="platform.java" value="${java.home}/bin/java"/>
+        <j2seproject1:property name="platform.home" value="platforms.${platform.active}.home"/>
+        <j2seproject1:property name="platform.bootcp" value="platforms.${platform.active}.bootclasspath"/>
+        <j2seproject1:property name="platform.compiler" value="platforms.${platform.active}.compile"/>
+        <j2seproject1:property name="platform.javac.tmp" value="platforms.${platform.active}.javac"/>
+        <condition property="platform.javac" value="${platform.home}/bin/javac">
+            <equals arg1="${platform.javac.tmp}" arg2="$${platforms.${platform.active}.javac}"/>
+        </condition>
+        <property name="platform.javac" value="${platform.javac.tmp}"/>
+        <j2seproject1:property name="platform.java.tmp" value="platforms.${platform.active}.java"/>
+        <condition property="platform.java" value="${platform.home}/bin/java">
+            <equals arg1="${platform.java.tmp}" arg2="$${platforms.${platform.active}.java}"/>
+        </condition>
+        <property name="platform.java" value="${platform.java.tmp}"/>
+        <j2seproject1:property name="platform.javadoc.tmp" value="platforms.${platform.active}.javadoc"/>
+        <condition property="platform.javadoc" value="${platform.home}/bin/javadoc">
+            <equals arg1="${platform.javadoc.tmp}" arg2="$${platforms.${platform.active}.javadoc}"/>
+        </condition>
+        <property name="platform.javadoc" value="${platform.javadoc.tmp}"/>
+        <condition property="platform.invalid" value="true">
+            <or>
+                <contains string="${platform.javac}" substring="$${platforms."/>
+                <contains string="${platform.java}" substring="$${platforms."/>
+                <contains string="${platform.javadoc}" substring="$${platforms."/>
+            </or>
+        </condition>
+        <fail unless="platform.home">Must set platform.home</fail>
+        <fail unless="platform.bootcp">Must set platform.bootcp</fail>
+        <fail unless="platform.java">Must set platform.java</fail>
+        <fail unless="platform.javac">Must set platform.javac</fail>
+        <fail if="platform.invalid">
+ The J2SE Platform is not correctly set up.
+ Your active platform is: ${platform.active}, but the corresponding property "platforms.${platform.active}.home" is not found in the project's properties files. 
+ Either open the project in the IDE and setup the Platform with the same name or add it manually.
+ For example like this:
+     ant -Duser.properties.file=&lt;path_to_property_file&gt; jar (where you put the property "platforms.${platform.active}.home" in a .properties file)
+  or ant -Dplatforms.${platform.active}.home=&lt;path_to_JDK_home&gt; jar (where no properties file is used) 
+  </fail>
         <available file="${manifest.file}" property="manifest.available"/>
         <condition property="splashscreen.available">
             <and>
@@ -242,20 +278,6 @@ is divided into following sections:
         <condition else="" property="javac.profile.cmd.line.arg" value="-profile ${javac.profile}">
             <isset property="profile.available"/>
         </condition>
-        <condition else="false" property="jdkBug6558476">
-            <and>
-                <matches pattern="1\.[56]" string="${java.specification.version}"/>
-                <not>
-                    <os family="unix"/>
-                </not>
-            </and>
-        </condition>
-        <condition else="false" property="javac.fork">
-            <or>
-                <istrue value="${jdkBug6558476}"/>
-                <istrue value="${javac.external.vm}"/>
-            </or>
-        </condition>
         <property name="jar.index" value="false"/>
         <property name="jar.index.metainf" value="${jar.index}"/>
         <property name="copylibs.rebase" value="true"/>
@@ -343,7 +365,7 @@ is divided into following sections:
                         </path>
                     </resourcecount>
                 </condition>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -394,7 +416,7 @@ is divided into following sections:
                 <property location="${build.dir}/empty" name="empty.dir"/>
                 <mkdir dir="${empty.dir}"/>
                 <mkdir dir="@{apgeneratedsrcdir}"/>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -436,7 +458,7 @@ is divided into following sections:
             <sequential>
                 <property location="${build.dir}/empty" name="empty.dir"/>
                 <mkdir dir="${empty.dir}"/>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -515,7 +537,7 @@ is divided into following sections:
             <element name="customizePrototype" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
                         <mapper from="test-sys-prop.*" to="*" type="glob"/>
@@ -543,7 +565,7 @@ is divided into following sections:
             <element name="customizePrototype" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
                         <mapper from="test-sys-prop.*" to="*" type="glob"/>
@@ -619,7 +641,7 @@ is divided into following sections:
                     </fileset>
                 </union>
                 <taskdef classname="org.testng.TestNGAntTask" classpath="${run.test.classpath}" name="testng"/>
-                <testng classfilesetref="test.set" failureProperty="tests.failed" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="Networked_Graphics_MV3500_assignments" testname="TestNG tests" workingDir="${work.dir}">
+                <testng classfilesetref="test.set" failureProperty="tests.failed" jvm="${platform.java}" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="Networked_Graphics_MV3500_assignments" testname="TestNG tests" workingDir="${work.dir}">
                     <xmlfileset dir="${build.test.classes.dir}" includes="@{testincludes}"/>
                     <propertyset>
                         <propertyref prefix="test-sys-prop."/>
@@ -850,6 +872,9 @@ is divided into following sections:
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
+                    <bootclasspath>
+                        <path path="${platform.bootcp}"/>
+                    </bootclasspath>
                 </nbjpdastart>
             </sequential>
         </macrodef>
@@ -899,7 +924,7 @@ is divided into following sections:
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" module="@{modulename}">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}" module="@{modulename}">
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
@@ -933,7 +958,7 @@ is divided into following sections:
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}">
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
@@ -965,7 +990,7 @@ is divided into following sections:
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}">
                     <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                     <jvmarg value="-Dfile.encoding=${runtime.encoding}"/>
                     <redirector errorencoding="${runtime.encoding}" inputencoding="${runtime.encoding}" outputencoding="${runtime.encoding}"/>
@@ -1199,7 +1224,7 @@ is divided into following sections:
         <j2seproject3:copylibs manifest="${tmp.manifest.file}"/>
         <echo level="info">To run this application from the command line without Ant, try:</echo>
         <property location="${dist.jar}" name="dist.jar.resolved"/>
-        <echo level="info">java -jar "${dist.jar.resolved}"</echo>
+        <echo level="info">${platform.java} -jar "${dist.jar.resolved}"</echo>
     </target>
     <target depends="init,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen,-check-do-mkdist" if="do.archive" name="-do-jar-jar" unless="do.mkdist">
         <j2seproject1:jar manifest="${tmp.manifest.file}"/>
@@ -1301,8 +1326,8 @@ is divided into following sections:
                 <isset property="main.class.available"/>
             </and>
         </condition>
-        <property name="platform.jlink" value="${jdk.home}/bin/jlink"/>
-        <property name="jlink.systemmodules.internal" value="${jdk.home}/jmods"/>
+        <property name="platform.jlink" value="${platform.home}/bin/jlink"/>
+        <property name="jlink.systemmodules.internal" value="${platform.home}/jmods"/>
         <exec executable="${platform.jlink}">
             <arg value="--module-path"/>
             <arg path="${jlink.systemmodules.internal}:${run.modulepath}:${dist.jar}"/>
@@ -1495,16 +1520,19 @@ is divided into following sections:
                 </not>
             </and>
         </condition>
+        <exec executable="${platform.java}" failonerror="false" outputproperty="platform.version.output">
+            <arg value="-version"/>
+        </exec>
         <condition else="" property="bug5101868workaround" value="*.java">
-            <matches pattern="1\.[56](\..*)?" string="${java.version}"/>
+            <matches multiline="true" pattern="1\.[56](\..*)?" string="${platform.version.output}"/>
         </condition>
         <condition else="" property="javadoc.html5.cmd.line.arg" value="-html5">
             <and>
                 <isset property="javadoc.html5"/>
-                <available file="${jdk.home}${file.separator}lib${file.separator}jrt-fs.jar"/>
+                <available file="${platform.home}${file.separator}lib${file.separator}jrt-fs.jar"/>
             </and>
         </condition>
-        <javadoc additionalparam="-J-Dfile.encoding=${file.encoding} ${javadoc.additionalparam}" author="${javadoc.author}" charset="UTF-8" destdir="${dist.javadoc.dir}" docencoding="UTF-8" encoding="${javadoc.encoding.used}" failonerror="true" noindex="${javadoc.noindex}" nonavbar="${javadoc.nonavbar}" notree="${javadoc.notree}" private="${javadoc.private}" source="${javac.source}" splitindex="${javadoc.splitindex}" use="${javadoc.use}" useexternalfile="true" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}">
+        <javadoc additionalparam="-J-Dfile.encoding=${file.encoding} ${javadoc.additionalparam}" author="${javadoc.author}" charset="UTF-8" destdir="${dist.javadoc.dir}" docencoding="UTF-8" encoding="${javadoc.encoding.used}" executable="${platform.javadoc}" failonerror="true" noindex="${javadoc.noindex}" nonavbar="${javadoc.nonavbar}" notree="${javadoc.notree}" private="${javadoc.private}" source="${javac.source}" splitindex="${javadoc.splitindex}" use="${javadoc.use}" useexternalfile="true" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}">
             <classpath>
                 <path path="${javac.classpath}"/>
             </classpath>
diff --git a/assignments/nbproject/project.properties b/assignments/nbproject/project.properties
index 95236e694c46e5685d8ceab31d2a9951f57477f9..69e2d90da859c3cc8433bd231b50a8b3879f7fbc 100644
--- a/assignments/nbproject/project.properties
+++ b/assignments/nbproject/project.properties
@@ -1,128 +1,128 @@
-annotation.processing.enabled=true
-annotation.processing.enabled.in.editor=false
-annotation.processing.processors.list=
-annotation.processing.run.all.processors=true
-annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
-application.desc=Student assignments performed as part of course Networked Graphics MV3500
-application.homepage=https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/tree/master/assignments
-application.title=Networked Graphics MV3500 assignments
-application.vendor=Don Brutzman
-build.classes.dir=${build.dir}/classes
-build.classes.excludes=**/*.java,**/*.form
-# This directory is removed when the project is cleaned:
-build.dir=build
-build.generated.dir=${build.dir}/generated
-build.generated.sources.dir=${build.dir}/generated-sources
-# Only compile against the classpath explicitly listed here:
-build.sysclasspath=ignore
-build.test.classes.dir=${build.dir}/test/classes
-build.test.results.dir=${build.dir}/test/results
-# Uncomment to specify the preferred debugger connection transport:
-#debug.transport=dt_socket
-debug.classpath=\
-    ${run.classpath}
-debug.modulepath=\
-    ${run.modulepath}
-debug.test.classpath=\
-    ${run.test.classpath}
-debug.test.modulepath=\
-    ${run.test.modulepath}
-# Files in build.classes.dir which should be excluded from distribution jar
-dist.archive.excludes=
-# This directory is removed when the project is cleaned:
-dist.dir=dist
-dist.jar=${dist.dir}/Networked_Graphics_MV3500_assignments.jar
-dist.javadoc.dir=${dist.dir}/javadoc
-endorsed.classpath=
-excludes=
-file.reference.commons-io-2.6.jar=../lib/commons-io-2.6.jar
-file.reference.dis-enums-1.3.jar=../lib/dis-enums-1.3.jar
-file.reference.guava-28.0-jre.jar=../lib/guava-28.0-jre.jar
-file.reference.open-dis7-classes.jar=../lib/open-dis7-classes.jar
-file.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-classes.jar
-file.reference.open-dis_4.16.jar=../lib/open-dis_4.16.jar
-includes=**
-jar.archive.disabled=${jnlp.enabled}
-jar.compress=false
-jar.index=${jnlp.enabled}
-javac.classpath=\
-    ${file.reference.open-dis7-classes.jar}:\
-    ${file.reference.open-dis7-enumerations-classes.jar}:\
-    ${file.reference.commons-io-2.6.jar}:\
-    ${file.reference.guava-28.0-jre.jar}:\
-    ${file.reference.open-dis_4.16.jar}:\
-    ${file.reference.dis-enums-1.3.jar}
-# Space-separated list of extra javac options
-javac.compilerargs=
-javac.deprecation=false
-javac.external.vm=true
-javac.modulepath=
-javac.processormodulepath=
-javac.processorpath=\
-    ${javac.classpath}
-javac.source=1.8
-javac.target=1.8
-javac.test.classpath=\
-    ${javac.classpath}:\
-    ${build.classes.dir}
-javac.test.modulepath=\
-    ${javac.modulepath}
-javac.test.processorpath=\
-    ${javac.test.classpath}
-javadoc.additionalparam=
-javadoc.author=false
-javadoc.encoding=${source.encoding}
-javadoc.html5=false
-javadoc.noindex=false
-javadoc.nonavbar=false
-javadoc.notree=false
-javadoc.private=false
-javadoc.reference.open-dis7-classes.jar=../lib/open-dis7-javadoc.jar
-javadoc.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-javadoc.jar
-javadoc.splitindex=true
-javadoc.use=true
-javadoc.version=false
-javadoc.windowtitle=
-jlink.launcher=false
-jlink.launcher.name=Networked_Graphics_MV3500_assignments
-jnlp.codebase.type=no.codebase
-jnlp.descriptor=application
-jnlp.enabled=false
-jnlp.mixed.code=default
-jnlp.offline-allowed=false
-jnlp.signed=false
-jnlp.signing=
-jnlp.signing.alias=
-jnlp.signing.keystore=
-main.class=MV3500Cohort2020JulySeptember.homework1.WeissenbergerTcpExample1Telnet
-# Optional override of default Application-Library-Allowable-Codebase attribute identifying the locations where your signed RIA is expected to be found.
-manifest.custom.application.library.allowable.codebase=
-# Optional override of default Caller-Allowable-Codebase attribute identifying the domains from which JavaScript code can make calls to your RIA without security prompts.
-manifest.custom.caller.allowable.codebase=
-# Optional override of default Codebase manifest attribute, use to prevent RIAs from being repurposed
-manifest.custom.codebase=
-# Optional override of default Permissions manifest attribute (supported values: sandbox, all-permissions)
-manifest.custom.permissions=
-meta.inf.dir=${src.dir}/META-INF
-mkdist.disabled=false
-platform.active=default_platform
-project.licensePath=../license.txt
-run.classpath=\
-    ${javac.classpath}:\
-    ${build.classes.dir}
-# Space-separated list of JVM arguments used when running the project.
-# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
-# To set system properties for unit tests define test-sys-prop.name=value:
-run.jvmargs=
-run.modulepath=\
-    ${javac.modulepath}
-run.test.classpath=\
-    ${javac.test.classpath}:\
-    ${build.test.classes.dir}
-run.test.modulepath=\
-    ${javac.test.modulepath}
-source.encoding=UTF-8
-source.reference.open-dis7-classes.jar=../lib/open-dis7-source.jar
-source.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-source.jar
-src.dir=src
-test.src.dir=test
+annotation.processing.enabled=true
+annotation.processing.enabled.in.editor=false
+annotation.processing.processors.list=
+annotation.processing.run.all.processors=true
+annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+application.desc=Student assignments performed as part of NPS course Networked Graphics MV3500.  This course is an introduction to network communications in simulation applications. Topics include an introduction to the TCP/IP protocol stack; TCP/IP socket communications, including TCP, UDP, and multicast; and protocol design issues, with emphasis on Distributed Interactive Simulation (DIS) Protocol and High Level Architecture (HLA). Course emphasis is on creation and testing of network programming network code and web-browser applications.
+application.homepage=https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/tree/master/assignments
+application.splash=../..\\NetworkedGraphicsMV3500\\documentation\\images\\OpenDisSurferDude.png
+application.title=NPS Networked Graphics MV3500 assignments
+application.vendor=Don Brutzman
+auxiliary.org-netbeans-spi-editor-hints-projects.perProjectHintSettingsFile=nbproject/cfg_hints.xml
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
+debug.test.classpath=\
+    ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/Networked_Graphics_MV3500_assignments.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+endorsed.classpath=
+excludes=
+file.reference.commons-io-2.6.jar=../lib/commons-io-2.6.jar
+file.reference.dis-enums-1.3.jar=../lib/dis-enums-1.3.jar
+file.reference.guava-28.0-jre.jar=../lib/guava-28.0-jre.jar
+file.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-classes.jar
+file.reference.open-dis7-pdus-classes.jar=../lib/open-dis7-pdus-classes.jar
+file.reference.open-dis_4.16.jar=../lib/open-dis_4.16.jar
+includes=**
+jar.archive.disabled=${jnlp.enabled}
+jar.compress=false
+jar.index=${jnlp.enabled}
+javac.classpath=\
+    ${file.reference.open-dis7-enumerations-classes.jar}:\
+    ${file.reference.open-dis7-pdus-classes.jar}:\
+    ${file.reference.commons-io-2.6.jar}:\
+    ${file.reference.guava-28.0-jre.jar}:\
+    ${file.reference.open-dis_4.16.jar}:\
+    ${file.reference.dis-enums-1.3.jar}
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=1.8
+javac.target=1.8
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=true
+javadoc.encoding=${source.encoding}
+javadoc.html5=false
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-javadoc.jar
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=Networked Graphics MV3500 NPS
+jlink.launcher=false
+jlink.launcher.name=Networked_Graphics_MV3500_assignments
+jnlp.codebase.type=no.codebase
+jnlp.descriptor=application
+jnlp.enabled=false
+jnlp.mixed.code=default
+jnlp.offline-allowed=false
+jnlp.signed=false
+jnlp.signing=
+jnlp.signing.alias=
+jnlp.signing.keystore=
+main.class=MV3500Cohort2020JulySeptember.homework1.WeissenbergerTcpExample1Telnet
+# Optional override of default Application-Library-Allowable-Codebase attribute identifying the locations where your signed RIA is expected to be found.
+manifest.custom.application.library.allowable.codebase=
+# Optional override of default Caller-Allowable-Codebase attribute identifying the domains from which JavaScript code can make calls to your RIA without security prompts.
+manifest.custom.caller.allowable.codebase=
+# Optional override of default Codebase manifest attribute, use to prevent RIAs from being repurposed
+manifest.custom.codebase=
+# Optional override of default Permissions manifest attribute (supported values: sandbox, all-permissions)
+manifest.custom.permissions=
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=Open_JDK_14.0.2
+project.licensePath=../license.txt
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
+source.encoding=UTF-8
+source.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-source.jar
+src.dir=src
+test.src.dir=test
diff --git a/assignments/nbproject/project.xml b/assignments/nbproject/project.xml
index a8deed1628f74f99861205f0c0c7df64c605b09b..32d14ef70608e578b22614fbe413b767cb50c3fb 100644
--- a/assignments/nbproject/project.xml
+++ b/assignments/nbproject/project.xml
@@ -1,27 +1,28 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://www.netbeans.org/ns/project/1">
-    <type>org.netbeans.modules.java.j2seproject</type>
-    <configuration>
-        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
-            <name>Networked Graphics MV3500 assignments</name>
-            <source-roots>
-                <root id="src.dir"/>
-            </source-roots>
-            <test-roots>
-                <root id="test.src.dir"/>
-            </test-roots>
-        </data>
-        <spellchecker-wordlist xmlns="http://www.netbeans.org/ns/spellchecker-wordlist/1">
-            <word>deliverables</word>
-            <word>https</word>
-            <word>localhost</word>
-            <word>multicast</word>
-            <word>Netbeans</word>
-            <word>README</word>
-            <word>UML</word>
-            <word>unicast</word>
-            <word>wikipedia</word>
-            <word>Wireshark</word>
-        </spellchecker-wordlist>
-    </configuration>
-</project>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>Networked Graphics MV3500 assignments</name>
+            <explicit-platform explicit-source-supported="true"/>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+        <spellchecker-wordlist xmlns="http://www.netbeans.org/ns/spellchecker-wordlist/1">
+            <word>deliverables</word>
+            <word>https</word>
+            <word>localhost</word>
+            <word>multicast</word>
+            <word>Netbeans</word>
+            <word>README</word>
+            <word>UML</word>
+            <word>unicast</word>
+            <word>wikipedia</word>
+            <word>Wireshark</word>
+        </spellchecker-wordlist>
+    </configuration>
+</project>
diff --git a/examples/nbproject/build-impl.xml b/examples/nbproject/build-impl.xml
index a597975468383822a61c2c6b556867585e301696..dbdd7c12426f328409436c082fd87248a50a20a9 100644
--- a/examples/nbproject/build-impl.xml
+++ b/examples/nbproject/build-impl.xml
@@ -119,7 +119,43 @@ is divided into following sections:
         <property name="module.name" value=""/>
     </target>
     <target depends="-pre-init,-init-private,-init-user,-init-project,-init-macrodef-property,-init-modules-supported" name="-do-init">
-        <property name="platform.java" value="${java.home}/bin/java"/>
+        <j2seproject1:property name="platform.home" value="platforms.${platform.active}.home"/>
+        <j2seproject1:property name="platform.bootcp" value="platforms.${platform.active}.bootclasspath"/>
+        <j2seproject1:property name="platform.compiler" value="platforms.${platform.active}.compile"/>
+        <j2seproject1:property name="platform.javac.tmp" value="platforms.${platform.active}.javac"/>
+        <condition property="platform.javac" value="${platform.home}/bin/javac">
+            <equals arg1="${platform.javac.tmp}" arg2="$${platforms.${platform.active}.javac}"/>
+        </condition>
+        <property name="platform.javac" value="${platform.javac.tmp}"/>
+        <j2seproject1:property name="platform.java.tmp" value="platforms.${platform.active}.java"/>
+        <condition property="platform.java" value="${platform.home}/bin/java">
+            <equals arg1="${platform.java.tmp}" arg2="$${platforms.${platform.active}.java}"/>
+        </condition>
+        <property name="platform.java" value="${platform.java.tmp}"/>
+        <j2seproject1:property name="platform.javadoc.tmp" value="platforms.${platform.active}.javadoc"/>
+        <condition property="platform.javadoc" value="${platform.home}/bin/javadoc">
+            <equals arg1="${platform.javadoc.tmp}" arg2="$${platforms.${platform.active}.javadoc}"/>
+        </condition>
+        <property name="platform.javadoc" value="${platform.javadoc.tmp}"/>
+        <condition property="platform.invalid" value="true">
+            <or>
+                <contains string="${platform.javac}" substring="$${platforms."/>
+                <contains string="${platform.java}" substring="$${platforms."/>
+                <contains string="${platform.javadoc}" substring="$${platforms."/>
+            </or>
+        </condition>
+        <fail unless="platform.home">Must set platform.home</fail>
+        <fail unless="platform.bootcp">Must set platform.bootcp</fail>
+        <fail unless="platform.java">Must set platform.java</fail>
+        <fail unless="platform.javac">Must set platform.javac</fail>
+        <fail if="platform.invalid">
+ The J2SE Platform is not correctly set up.
+ Your active platform is: ${platform.active}, but the corresponding property "platforms.${platform.active}.home" is not found in the project's properties files. 
+ Either open the project in the IDE and setup the Platform with the same name or add it manually.
+ For example like this:
+     ant -Duser.properties.file=&lt;path_to_property_file&gt; jar (where you put the property "platforms.${platform.active}.home" in a .properties file)
+  or ant -Dplatforms.${platform.active}.home=&lt;path_to_JDK_home&gt; jar (where no properties file is used) 
+  </fail>
         <available file="${manifest.file}" property="manifest.available"/>
         <condition property="splashscreen.available">
             <and>
@@ -154,18 +190,6 @@ is divided into following sections:
                 <istrue value="${not.archive.disabled}"/>
             </or>
         </condition>
-        <condition property="do.mkdist">
-            <and>
-                <isset property="do.archive"/>
-                <isset property="libs.CopyLibs.classpath"/>
-                <not>
-                    <istrue value="${mkdist.disabled}"/>
-                </not>
-                <not>
-                    <istrue value="${modules.supported.internal}"/>
-                </not>
-            </and>
-        </condition>
         <condition property="do.archive+manifest.available">
             <and>
                 <isset property="manifest.available"/>
@@ -252,20 +276,6 @@ is divided into following sections:
         <condition else="" property="javac.profile.cmd.line.arg" value="-profile ${javac.profile}">
             <isset property="profile.available"/>
         </condition>
-        <condition else="false" property="jdkBug6558476">
-            <and>
-                <matches pattern="1\.[56]" string="${java.specification.version}"/>
-                <not>
-                    <os family="unix"/>
-                </not>
-            </and>
-        </condition>
-        <condition else="false" property="javac.fork">
-            <or>
-                <istrue value="${jdkBug6558476}"/>
-                <istrue value="${javac.external.vm}"/>
-            </or>
-        </condition>
         <property name="jar.index" value="false"/>
         <property name="jar.index.metainf" value="${jar.index}"/>
         <property name="copylibs.rebase" value="true"/>
@@ -352,7 +362,7 @@ is divided into following sections:
                         </path>
                     </resourcecount>
                 </condition>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -379,11 +389,7 @@ is divided into following sections:
                     <compilerarg value="-s"/>
                     <compilerarg path="@{apgeneratedsrcdir}"/>
                     <compilerarg line="${ap.proc.none.internal}"/>
-                    <customize/>>
-                    <compilerarg value="-Xlint:all"/>
-                    <!-- http://ant.apache.org/manual/Tasks/javac.html#bootstrap -->
-                    <!-- https://stackoverflow.com/questions/4134803/ant-passing-compilerarg-into-javac -->
-                    <compilerarg value="-Xbootclasspath/p:${toString:lib.path.ref}"/>
+                    <customize/>
                 </javac>
             </sequential>
         </macrodef>
@@ -407,7 +413,7 @@ is divided into following sections:
                 <property location="${build.dir}/empty" name="empty.dir"/>
                 <mkdir dir="${empty.dir}"/>
                 <mkdir dir="@{apgeneratedsrcdir}"/>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -427,9 +433,6 @@ is divided into following sections:
                     <compilerarg path="@{apgeneratedsrcdir}"/>
                     <compilerarg line="${ap.proc.none.internal}"/>
                     <customize/>
-                    <!-- http://ant.apache.org/manual/Tasks/javac.html#bootstrap -->
-                    <!-- https://stackoverflow.com/questions/4134803/ant-passing-compilerarg-into-javac -->
-                    <compilerarg value="-Xbootclasspath/p:${toString:lib.path.ref}"/>
                 </javac>
             </sequential>
         </macrodef>
@@ -452,7 +455,7 @@ is divided into following sections:
             <sequential>
                 <property location="${build.dir}/empty" name="empty.dir"/>
                 <mkdir dir="${empty.dir}"/>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -465,9 +468,6 @@ is divided into following sections:
                     <compilerarg line="${javac.profile.cmd.line.arg}"/>
                     <compilerarg line="${javac.compilerargs}"/>
                     <customize/>
-                    <!-- http://ant.apache.org/manual/Tasks/javac.html#bootstrap -->
-                    <!-- https://stackoverflow.com/questions/4134803/ant-passing-compilerarg-into-javac -->
-                    <compilerarg value="-Xbootclasspath/p:${toString:lib.path.ref}"/>
                 </javac>
             </sequential>
         </macrodef>
@@ -534,7 +534,7 @@ is divided into following sections:
             <element name="customizePrototype" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
                         <mapper from="test-sys-prop.*" to="*" type="glob"/>
@@ -562,7 +562,7 @@ is divided into following sections:
             <element name="customizePrototype" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
                         <mapper from="test-sys-prop.*" to="*" type="glob"/>
@@ -631,7 +631,7 @@ is divided into following sections:
                 </condition>
                 <union id="test.set"/>
                 <taskdef classname="org.testng.TestNGAntTask" classpath="${run.test.classpath}" name="testng"/>
-                <testng classfilesetref="test.set" failureProperty="tests.failed" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="Networked_Graphics_MV3500_examples" testname="TestNG tests" workingDir="${work.dir}">
+                <testng classfilesetref="test.set" failureProperty="tests.failed" jvm="${platform.java}" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="Networked_Graphics_MV3500_examples" testname="TestNG tests" workingDir="${work.dir}">
                     <xmlfileset dir="${build.test.classes.dir}" includes="@{testincludes}"/>
                     <propertyset>
                         <propertyref prefix="test-sys-prop."/>
@@ -862,6 +862,9 @@ is divided into following sections:
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
+                    <bootclasspath>
+                        <path path="${platform.bootcp}"/>
+                    </bootclasspath>
                 </nbjpdastart>
             </sequential>
         </macrodef>
@@ -911,7 +914,7 @@ is divided into following sections:
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" module="@{modulename}">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}" module="@{modulename}">
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
@@ -945,7 +948,7 @@ is divided into following sections:
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}">
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
@@ -977,7 +980,7 @@ is divided into following sections:
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}">
                     <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                     <jvmarg value="-Dfile.encoding=${runtime.encoding}"/>
                     <redirector errorencoding="${runtime.encoding}" inputencoding="${runtime.encoding}" outputencoding="${runtime.encoding}"/>
@@ -1193,13 +1196,27 @@ is divided into following sections:
             <attribute name="SplashScreen-Image" value="META-INF/${splashscreen.basename}"/>
         </manifest>
     </target>
-    <target depends="init,-init-macrodef-copylibs,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen" if="do.mkdist" name="-do-jar-copylibs">
+    <target depends="init,compile" name="-check-do-mkdist">
+        <condition property="do.mkdist">
+            <and>
+                <isset property="do.archive"/>
+                <isset property="libs.CopyLibs.classpath"/>
+                <not>
+                    <istrue value="${mkdist.disabled}"/>
+                </not>
+                <not>
+                    <available file="${build.classes.dir}/module-info.class"/>
+                </not>
+            </and>
+        </condition>
+    </target>
+    <target depends="init,-init-macrodef-copylibs,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen,-check-do-mkdist" if="do.mkdist" name="-do-jar-copylibs">
         <j2seproject3:copylibs manifest="${tmp.manifest.file}"/>
         <echo level="info">To run this application from the command line without Ant, try:</echo>
         <property location="${dist.jar}" name="dist.jar.resolved"/>
-        <echo level="info">java -jar "${dist.jar.resolved}"</echo>
+        <echo level="info">${platform.java} -jar "${dist.jar.resolved}"</echo>
     </target>
-    <target depends="init,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen" if="do.archive" name="-do-jar-jar" unless="do.mkdist">
+    <target depends="init,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen,-check-do-mkdist" if="do.archive" name="-do-jar-jar" unless="do.mkdist">
         <j2seproject1:jar manifest="${tmp.manifest.file}"/>
         <property location="${build.classes.dir}" name="build.classes.dir.resolved"/>
         <property location="${dist.jar}" name="dist.jar.resolved"/>
@@ -1299,8 +1316,8 @@ is divided into following sections:
                 <isset property="main.class.available"/>
             </and>
         </condition>
-        <property name="platform.jlink" value="${jdk.home}/bin/jlink"/>
-        <property name="jlink.systemmodules.internal" value="${jdk.home}/jmods"/>
+        <property name="platform.jlink" value="${platform.home}/bin/jlink"/>
+        <property name="jlink.systemmodules.internal" value="${platform.home}/jmods"/>
         <exec executable="${platform.jlink}">
             <arg value="--module-path"/>
             <arg path="${jlink.systemmodules.internal}:${run.modulepath}:${dist.jar}"/>
@@ -1493,16 +1510,19 @@ is divided into following sections:
                 </not>
             </and>
         </condition>
+        <exec executable="${platform.java}" failonerror="false" outputproperty="platform.version.output">
+            <arg value="-version"/>
+        </exec>
         <condition else="" property="bug5101868workaround" value="*.java">
-            <matches pattern="1\.[56](\..*)?" string="${java.version}"/>
+            <matches multiline="true" pattern="1\.[56](\..*)?" string="${platform.version.output}"/>
         </condition>
         <condition else="" property="javadoc.html5.cmd.line.arg" value="-html5">
             <and>
                 <isset property="javadoc.html5"/>
-                <available file="${jdk.home}${file.separator}lib${file.separator}jrt-fs.jar"/>
+                <available file="${platform.home}${file.separator}lib${file.separator}jrt-fs.jar"/>
             </and>
         </condition>
-        <javadoc additionalparam="-J-Dfile.encoding=${file.encoding} ${javadoc.additionalparam}" author="${javadoc.author}" charset="UTF-8" destdir="${dist.javadoc.dir}" docencoding="UTF-8" encoding="${javadoc.encoding.used}" failonerror="true" noindex="${javadoc.noindex}" nonavbar="${javadoc.nonavbar}" notree="${javadoc.notree}" private="${javadoc.private}" source="${javac.source}" splitindex="${javadoc.splitindex}" use="${javadoc.use}" useexternalfile="true" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}">
+        <javadoc additionalparam="-J-Dfile.encoding=${file.encoding} ${javadoc.additionalparam}" author="${javadoc.author}" charset="UTF-8" destdir="${dist.javadoc.dir}" docencoding="UTF-8" encoding="${javadoc.encoding.used}" executable="${platform.javadoc}" failonerror="true" noindex="${javadoc.noindex}" nonavbar="${javadoc.nonavbar}" notree="${javadoc.notree}" private="${javadoc.private}" source="${javac.source}" splitindex="${javadoc.splitindex}" use="${javadoc.use}" useexternalfile="true" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}">
             <classpath>
                 <path path="${javac.classpath}"/>
             </classpath>
diff --git a/examples/nbproject/project.properties b/examples/nbproject/project.properties
index f11e12f96580d144294b62b00a3b759d1afa36b1..e34dd105322fe672d09d51f67dc95db2ae18c9f1 100644
--- a/examples/nbproject/project.properties
+++ b/examples/nbproject/project.properties
@@ -1,106 +1,107 @@
-annotation.processing.enabled=true
-annotation.processing.enabled.in.editor=false
-annotation.processing.processors.list=
-annotation.processing.run.all.processors=true
-annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
-application.title=Networked Graphics MV3500 examples
-application.vendor=don
-build.classes.dir=${build.dir}/classes
-build.classes.excludes=**/*.java,**/*.form
-# This directory is removed when the project is cleaned:
-build.dir=build
-build.generated.dir=${build.dir}/generated
-build.generated.sources.dir=${build.dir}/generated-sources
-# Only compile against the classpath explicitly listed here:
-build.sysclasspath=ignore
-build.test.classes.dir=${build.dir}/test/classes
-build.test.results.dir=${build.dir}/test/results
-# Uncomment to specify the preferred debugger connection transport:
-#debug.transport=dt_socket
-debug.classpath=\
-    ${run.classpath}
-debug.modulepath=\
-    ${run.modulepath}
-debug.test.classpath=\
-    ${run.test.classpath}
-debug.test.modulepath=\
-    ${run.test.modulepath}
-# Files in build.classes.dir which should be excluded from distribution jar
-dist.archive.excludes=
-# This directory is removed when the project is cleaned:
-dist.dir=dist
-dist.jar=${dist.dir}/Networked_Graphics_MV3500_examples.jar
-dist.javadoc.dir=${dist.dir}/javadoc
-endorsed.classpath=
-excludes=
-file.reference.commons-io-2.6.jar=../lib/commons-io-2.6.jar
-file.reference.dis-enums-1.3.jar=../lib/dis-enums-1.3.jar
-file.reference.guava-28.0-jre.jar=../lib/guava-28.0-jre.jar
-file.reference.open-dis7-classes.jar=../lib/open-dis7-classes.jar
-file.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-classes.jar
-file.reference.open-dis_4.16.jar=../lib/open-dis_4.16.jar
-includes=**
-jar.compress=false
-javac.classpath=\
-    ${file.reference.open-dis7-classes.jar}:\
-    ${file.reference.open-dis7-enumerations-classes.jar}:\
-    ${file.reference.commons-io-2.6.jar}:\
-    ${file.reference.guava-28.0-jre.jar}:\
-    ${file.reference.open-dis_4.16.jar}:\
-    ${file.reference.dis-enums-1.3.jar}
-# Space-separated list of extra javac options
-javac.compilerargs=
-javac.deprecation=false
-javac.external.vm=true
-javac.modulepath=
-javac.processormodulepath=
-javac.processorpath=\
-    ${javac.classpath}
-javac.source=1.8
-javac.target=1.8
-javac.test.classpath=\
-    ${javac.classpath}:\
-    ${build.classes.dir}
-javac.test.modulepath=\
-    ${javac.modulepath}
-javac.test.processorpath=\
-    ${javac.test.classpath}
-javadoc.additionalparam=
-javadoc.author=false
-javadoc.encoding=${source.encoding}
-javadoc.html5=false
-javadoc.noindex=false
-javadoc.nonavbar=false
-javadoc.notree=false
-javadoc.private=false
-javadoc.reference.open-dis7-classes.jar=../lib/open-dis7-javadoc.jar
-javadoc.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-javadoc.jar
-javadoc.splitindex=true
-javadoc.use=true
-javadoc.version=false
-javadoc.windowtitle=
-jlink.launcher=false
-jlink.launcher.name=Networked_Graphics_MV3500_examples
-main.class=TcpExamples.TcpExample1Telnet
-manifest.file=manifest.mf
-meta.inf.dir=${src.dir}/META-INF
-mkdist.disabled=false
-platform.active=default_platform
-run.classpath=\
-    ${javac.classpath}:\
-    ${build.classes.dir}
-# Space-separated list of JVM arguments used when running the project.
-# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
-# To set system properties for unit tests define test-sys-prop.name=value:
-run.jvmargs=
-run.modulepath=\
-    ${javac.modulepath}
-run.test.classpath=\
-    ${javac.test.classpath}:\
-    ${build.test.classes.dir}
-run.test.modulepath=\
-    ${javac.test.modulepath}
-source.encoding=UTF-8
-source.reference.open-dis7-classes.jar=../lib/open-dis7-source.jar
-source.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-source.jar
-src.dir=src
+annotation.processing.enabled=true
+annotation.processing.enabled.in.editor=false
+annotation.processing.processors.list=
+annotation.processing.run.all.processors=true
+annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+application.desc=Example programs provided as part of NPS course Networked Graphics MV3500. This course is an introduction to network communications in simulation applications. Topics include an introduction to the TCP/IP protocol stack; TCP/IP socket communications, including TCP, UDP, and multicast; and protocol design issues, with emphasis on Distributed Interactive Simulation (DIS) Protocol and High Level Architecture (HLA). Course emphasis is on creation and testing of network programming network code and web-browser applications.
+application.homepage=https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/tree/master/examples
+application.splash=..\\..\\NetworkedGraphicsMV3500\\documentation\\images\\OpenDisSurferDude.png
+application.title=NPS Networked Graphics MV3500 examples
+application.vendor=Don Brutzman
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
+debug.test.classpath=\
+    ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/Networked_Graphics_MV3500_examples.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+endorsed.classpath=
+excludes=
+file.reference.commons-io-2.6.jar=../lib/commons-io-2.6.jar
+file.reference.dis-enums-1.3.jar=../lib/dis-enums-1.3.jar
+file.reference.guava-28.0-jre.jar=../lib/guava-28.0-jre.jar
+file.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-classes.jar
+file.reference.open-dis7-pdus-classes.jar=../lib/open-dis7-pdus-classes.jar
+file.reference.open-dis_4.16.jar=../lib/open-dis_4.16.jar
+includes=**
+jar.compress=false
+javac.classpath=\
+    ${file.reference.open-dis7-enumerations-classes.jar}:\
+    ${file.reference.open-dis7-pdus-classes.jar}:\
+    ${file.reference.commons-io-2.6.jar}:\
+    ${file.reference.guava-28.0-jre.jar}:\
+    ${file.reference.open-dis_4.16.jar}:\
+    ${file.reference.dis-enums-1.3.jar}
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=1.8
+javac.target=1.8
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=true
+javadoc.encoding=${source.encoding}
+javadoc.html5=false
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-javadoc.jar
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=NPS Networked Graphics MV3500 Examples
+jlink.launcher=false
+jlink.launcher.name=Networked_Graphics_MV3500_examples
+main.class=TcpExamples.TcpExample1Telnet
+manifest.file=manifest.mf
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=Open_JDK_14.0.2
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
+source.encoding=UTF-8
+source.reference.open-dis7-enumerations-classes.jar=../lib/open-dis7-enumerations-source.jar
+src.dir=src
diff --git a/examples/nbproject/project.xml b/examples/nbproject/project.xml
index 58b9ae9e8aa001602af580934ab76e3b3120d5fc..9ec2ed0897eddb90a491cb713e5a0038db333cd5 100644
--- a/examples/nbproject/project.xml
+++ b/examples/nbproject/project.xml
@@ -4,6 +4,7 @@
     <configuration>
         <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
             <name>Networked Graphics MV3500 examples</name>
+            <explicit-platform explicit-source-supported="true"/>
             <source-roots>
                 <root id="src.dir"/>
             </source-roots>
diff --git a/nbproject/jdk.xml b/nbproject/jdk.xml
new file mode 100644
index 0000000000000000000000000000000000000000..3d29141bdc5618925dfb987183238a1d3ee92bde
--- /dev/null
+++ b/nbproject/jdk.xml
@@ -0,0 +1,157 @@
+<?xml version="1.0" encoding="UTF-8"?><project name="jdk" basedir=".">
+
+    
+    <description>
+        Permits selection of a JDK to use when building and running project.
+        See: http://www.netbeans.org/issues/show_bug.cgi?id=64160
+    </description>
+
+    <target name="-jdk-pre-preinit">
+        <condition property="nbjdk.active-or-nbjdk.home">
+            <or>
+                <and>
+                    <isset property="nbjdk.active"/>
+                    <not>
+                        <equals arg1="${nbjdk.active}" arg2="default_platform"/>
+                    </not>
+                </and>
+                <and>
+                    <isset property="nbjdk.home"/>
+                    <not>
+                        <isset property="nbjdk.home.defaulted"/>
+                    </not>
+                </and>
+            </or>
+        </condition>
+    </target>
+
+    <target xmlns:common="http://java.netbeans.org/freeform/jdk.xml" name="-jdk-preinit" depends="-jdk-pre-preinit" if="nbjdk.active-or-nbjdk.home">
+        <macrodef name="property" uri="http://java.netbeans.org/freeform/jdk.xml">
+            <attribute name="name"/>
+            <attribute name="value"/>
+            <sequential>
+                <property name="@{name}" value="${@{value}}"/>
+            </sequential>
+        </macrodef>
+        <common:property name="nbjdk.home" value="platforms.${nbjdk.active}.home"/>
+        <common:property name="nbjdk.javac.tmp" value="platforms.${nbjdk.active}.javac"/>
+        <condition property=".exe" value=".exe">
+            <os family="windows"/> 
+        </condition>
+        <property name=".exe" value=""/>
+        <condition property="nbjdk.javac" value="${nbjdk.home}/bin/javac${.exe}">
+            <equals arg1="${nbjdk.javac.tmp}" arg2="$${platforms.${nbjdk.active}.javac}"/>
+        </condition>
+        <property name="nbjdk.javac" value="${nbjdk.javac.tmp}"/>
+        <common:property name="nbjdk.java.tmp" value="platforms.${nbjdk.active}.java"/>
+        <condition property="nbjdk.java" value="${nbjdk.home}/bin/java${.exe}">
+            <equals arg1="${nbjdk.java.tmp}" arg2="$${platforms.${nbjdk.active}.java}"/>
+        </condition>
+        <property name="nbjdk.java" value="${nbjdk.java.tmp}"/>
+        <common:property name="nbjdk.javadoc.tmp" value="platforms.${nbjdk.active}.javadoc"/>
+        <condition property="nbjdk.javadoc" value="${nbjdk.home}/bin/javadoc${.exe}">
+            <equals arg1="${nbjdk.javadoc.tmp}" arg2="$${platforms.${nbjdk.active}.javadoc}"/>
+        </condition>
+        <property name="nbjdk.javadoc" value="${nbjdk.javadoc.tmp}"/>
+        <common:property name="nbjdk.bootclasspath.tmp" value="platforms.${nbjdk.active}.bootclasspath"/>
+        <condition property="nbjdk.bootclasspath" value="${nbjdk.home}/jre/lib/rt.jar">
+            <equals arg1="${nbjdk.bootclasspath.tmp}" arg2="$${platforms.${nbjdk.active}.bootclasspath}"/>
+        </condition>
+        <property name="nbjdk.bootclasspath" value="${nbjdk.bootclasspath.tmp}"/>
+        <condition property="nbjdk.valid">
+            <and>
+                <available file="${nbjdk.home}" type="dir"/>
+                <available file="${nbjdk.javac}" type="file"/>
+                <available file="${nbjdk.java}" type="file"/>
+                <available file="${nbjdk.javadoc}" type="file"/>
+                
+            </and>
+        </condition>
+        <echo level="verbose">nbjdk.active=${nbjdk.active} nbjdk.home=${nbjdk.home} nbjdk.java=${nbjdk.java} nbjdk.javac=${nbjdk.javac} nbjdk.javadoc=${nbjdk.javadoc} nbjdk.bootclasspath=${nbjdk.bootclasspath} nbjdk.valid=${nbjdk.valid} have-jdk-1.4=${have-jdk-1.4} have-jdk-1.5=${have-jdk-1.5}</echo>
+    </target>
+
+    <target name="-jdk-warn" depends="-jdk-preinit" if="nbjdk.active-or-nbjdk.home" unless="nbjdk.valid">
+        <property name="jdkhome.presumed" location="${java.home}/.."/>
+        <echo level="warning">Warning: nbjdk.active=${nbjdk.active} or nbjdk.home=${nbjdk.home} is an invalid Java platform; ignoring and using ${jdkhome.presumed}</echo>
+    </target>
+
+    <target name="-jdk-presetdef-basic" depends="-jdk-preinit" if="nbjdk.valid" unless="nbjdk.presetdef.basic.done">
+        
+        
+        <macrodef name="javac-presetdef">
+            <attribute name="javacval"/>
+            <sequential>
+                <presetdef name="javac">
+                    <javac fork="yes" executable="@{javacval}"/>
+                </presetdef>
+            </sequential>
+        </macrodef>
+        <javac-presetdef javacval="${nbjdk.javac}"/>
+        <macrodef name="java-presetdef">
+            <attribute name="javaval"/>
+            <sequential>
+                <presetdef name="java">
+                    <java fork="yes" jvm="@{javaval}"/>
+                </presetdef>
+            </sequential>
+        </macrodef>
+        <java-presetdef javaval="${nbjdk.java}"/>
+        <macrodef name="javadoc-presetdef">
+            <attribute name="javadocval"/>
+            <sequential>
+                <presetdef name="javadoc">
+                    <javadoc executable="@{javadocval}"/>
+                </presetdef>
+            </sequential>
+        </macrodef>
+        <javadoc-presetdef javadocval="${nbjdk.javadoc}"/>
+        <macrodef name="junit-presetdef">
+            <attribute name="javaval"/>
+            <sequential>
+                <presetdef name="junit">
+                    <junit fork="yes" jvm="@{javaval}"/>
+                </presetdef>
+            </sequential>
+        </macrodef>
+        <junit-presetdef javaval="${nbjdk.java}"/>
+        <property name="nbjdk.presetdef.basic.done" value="true"/>
+    </target>
+
+    <target name="-jdk-presetdef-nbjpdastart" depends="-jdk-preinit" if="nbjdk.valid" unless="nbjdk.presetdef.nbjpdastart.done">
+        <macrodef name="nbjpdastart-presetdef">
+            <attribute name="bootcpval"/>
+            <sequential>
+                <presetdef name="nbjpdastart">
+                    <nbjpdastart>
+                        <bootclasspath>
+                            <path path="@{bootcpval}"/>
+                        </bootclasspath>
+                    </nbjpdastart>
+                </presetdef>
+            </sequential>
+        </macrodef>
+        <nbjpdastart-presetdef bootcpval="${nbjdk.bootclasspath}"/>
+        <property name="nbjdk.presetdef.nbjpdastart.done" value="true"/>
+    </target>
+
+    <target name="-jdk-default" unless="nbjdk.active-or-nbjdk.home">
+        
+        <property name="java.home.parent" location="${java.home}/.."/>
+        <condition property="nbjdk.home" value="${java.home.parent}">
+            <available file="${java.home.parent}/lib/tools.jar" type="file"/>
+        </condition>
+        <condition property="nbjdk.home" value="${java.home}">
+            <available file="${java.home}/lib/tools.jar" type="file"/>
+        </condition>
+        
+        <condition property="nbjdk.home" value="/Library/Java/Home">
+            <available file="/Library/Java/Home" type="dir"/>
+        </condition>
+        
+        <property name="nbjdk.home" location="${java.home.parent}"/>
+        <property name="nbjdk.home.defaulted" value="true"/>
+    </target>
+
+    <target name="-jdk-init" depends="-jdk-preinit,-jdk-warn,-jdk-presetdef-basic,-jdk-default"/>
+
+</project>
\ No newline at end of file
diff --git a/nbproject/nbjdk.properties b/nbproject/nbjdk.properties
new file mode 100644
index 0000000000000000000000000000000000000000..7fc8ad8110ca1630a2c14bc2c123b5acfe698517
--- /dev/null
+++ b/nbproject/nbjdk.properties
@@ -0,0 +1 @@
+nbjdk.active=Open_JDK_14.0.2
diff --git a/nbproject/nbjdk.xml b/nbproject/nbjdk.xml
new file mode 100644
index 0000000000000000000000000000000000000000..22ced4d044b466209fa9187daaadc4dd58d600b5
--- /dev/null
+++ b/nbproject/nbjdk.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project basedir=".." name="Networked_Graphics_MV3500">
+    <property file="nbproject/nbjdk.properties"/>
+    <property location="${netbeans.user}/build.properties" name="user.properties.file"/>
+    <property file="${user.properties.file}"/>
+    <import file="jdk.xml"/>
+</project>