diff --git a/assignments/nbproject/project.properties b/assignments/nbproject/project.properties
index 15e59c27543ce0c48e71a3e9f5325a5ef79e0010..67b123ace259306d82765c7ec95acd56e09bcbc5 100644
--- a/assignments/nbproject/project.properties
+++ b/assignments/nbproject/project.properties
@@ -114,7 +114,7 @@ manifest.custom.codebase=
 manifest.custom.permissions=
 meta.inf.dir=${src.dir}/META-INF
 mkdist.disabled=false
-platform.active=default_platform
+platform.active=JDK_22
 project.licensePath=../license.txt
 run.classpath=\
     ${javac.classpath}:\
diff --git a/examples/nbproject/project.properties b/examples/nbproject/project.properties
index a4a894c2d3bd9ec8e71230408d10d9cd0f906e86..bfa08a8d90d76ef73503d1b02ed5df067fb6f5dd 100644
--- a/examples/nbproject/project.properties
+++ b/examples/nbproject/project.properties
@@ -93,7 +93,7 @@ main.class=TcpExamples.TcpExample1Telnet
 manifest.file=manifest.mf
 meta.inf.dir=${src.dir}/META-INF
 mkdist.disabled=false
-platform.active=default_platform
+platform.active=JDK_22
 run.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}
diff --git a/examples/nbproject/project.xml b/examples/nbproject/project.xml
index d7c8e3fd3bc7ee7e746750956a36a82fa1034338..bd4589c403c0307b9edb0d25126b2a5fe03ae4bf 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"/>
                 <root id="src.src.dir"/>