diff --git a/nbproject/project.properties b/nbproject/project.properties
index 77575bdc99ed02e4fe84cdbca7cd80a1f25136ce..44d248b2040ee81b10ec6822a2e6f7725a12f35d 100644
--- a/nbproject/project.properties
+++ b/nbproject/project.properties
@@ -35,11 +35,18 @@ dist.jlink.dir=${dist.dir}/jlink
 dist.jlink.output=${dist.jlink.dir}/open-dis7-java
 endorsed.classpath=
 excludes=
+file.reference.apiguardian-api-1.1.0.jar=testlibs/apiguardian-api-1.1.0.jar
 file.reference.commons-io-2.6.jar=optionallibs/commons-io-2.6.jar
 file.reference.guava-28.0-jre.jar=optionallibs/guava-28.0-jre.jar
+file.reference.junit-platform-commons-1.5.1.jar=testlibs/junit-platform-commons-1.5.1.jar
+file.reference.junit-platform-console-1.5.1.jar=testlibs/junit-platform-console-1.5.1.jar
+file.reference.junit-platform-engine-1.5.1.jar=testlibs/junit-platform-engine-1.5.1.jar
+file.reference.junit-platform-launcher-1.5.1.jar=testlibs/junit-platform-launcher-1.5.1.jar
+file.reference.junit-platform-reporting-1.5.1.jar=testlibs/junit-platform-reporting-1.5.1.jar
 file.reference.open-dis7-entities-all.jar=entityjars/open-dis7-entities-all.jar
 file.reference.open-dis7-entities-usa-land.jar=entityjars/open-dis7-entities-usa-land.jar
 file.reference.open-dis7-entities-usa-surface.jar=entityjars/open-dis7-entities-usa-surface.jar
+file.reference.opentest4j-1.2.0.jar=testlibs/opentest4j-1.2.0.jar
 includes=**
 jar.compress=false
 javac.classpath=\
@@ -61,7 +68,14 @@ javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}:\
     ${libs.junit_5.classpath}:\
-    ${file.reference.open-dis7-entities-all.jar}
+    ${file.reference.open-dis7-entities-all.jar}:\
+    ${file.reference.apiguardian-api-1.1.0.jar}:\
+    ${file.reference.junit-platform-commons-1.5.1.jar}:\
+    ${file.reference.junit-platform-console-1.5.1.jar}:\
+    ${file.reference.junit-platform-engine-1.5.1.jar}:\
+    ${file.reference.junit-platform-launcher-1.5.1.jar}:\
+    ${file.reference.junit-platform-reporting-1.5.1.jar}:\
+    ${file.reference.opentest4j-1.2.0.jar}
 javac.test.modulepath=\
     ${javac.modulepath}
 javac.test.processorpath=\
@@ -88,7 +102,7 @@ jlink.launcher.name=open-dis7-java
 main.class=edu.nps.moves.dis7.util.playerrecorder.Player
 meta.inf.dir=${src.dir}/META-INF
 mkdist.disabled=true
-platform.active=JDK_1.8
+platform.active=JDK_12
 run.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}