COG-GTM · devin-ai-integration · May 26, 2026 · May 26, 2026 · May 26, 2026
diff --git a/.travis.yml b/.travis.yml
@@ -6,7 +6,7 @@ language: java
 
 # Configure the build to use Oracle JDK 9
 jdk:
-  - openjdk11
+  - openjdk21
 
 # Install the Ant JUnit package, which is missing from the Travis CI environment. See the Travis documentation: https://docs.travis-ci.com/user/installing-dependencies/#Adding-APT-Packages
 addons:

diff --git a/nbproject/project.properties b/nbproject/project.properties
@@ -56,8 +56,8 @@ javac.modulepath=
 javac.processormodulepath=
 javac.processorpath=\
     ${javac.classpath}
-javac.source=11
-javac.target=11
+javac.source=21
+javac.target=21
 javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}

diff --git a/release-build.properties b/release-build.properties
@@ -38,7 +38,7 @@ worldwind.classes.dir=${worldwind.build.dir}/classes
 worldwind.doc.dir=${worldwind.build.dir}/doc
 worldwind.jar.dir=${worldwind.build.dir}/jar
 worldwind.test.results.dir=${worldwind.build.dir}/test-results
-worldwind.jdk=11
+worldwind.jdk=21
 #worldwind.exclude.jackson=true
 
 # MIL-STD-2525 package build properties

diff --git a/release-build.xml b/release-build.xml
@@ -126,7 +126,7 @@
                 <pathelement location="gluegen-rt.jar"/>
                 <pathelement location="gdal.jar"/>
             </classpath>
-            <link href="http://download.oracle.com/javase/8/docs/api/"/>
+            <link href="https://docs.oracle.com/en/java/javase/21/docs/api/"/>
             <link href="https://jogamp.org/deployment/v2.4.0-rc-20200307/javadoc/"/>
         </javadoc>
     </target>

diff --git a/src/gov/nasa/worldwindx/examples/BulkDownloadPanel.java b/src/gov/nasa/worldwindx/examples/BulkDownloadPanel.java
@@ -77,15 +77,15 @@ public BulkDownloadPanel(WorldWindow wwd)
         // Layers
         for (Layer layer : this.wwd.getModel().getLayers())
         {
-            if (layer instanceof BulkRetrievable)
-                this.retrievables.add(new BulkRetrievablePanel((BulkRetrievable) layer));
+            if (layer instanceof BulkRetrievable bulkRetrievable)
+                this.retrievables.add(new BulkRetrievablePanel(bulkRetrievable));
         }
         // Elevation models
         CompoundElevationModel cem = (CompoundElevationModel) wwd.getModel().getGlobe().getElevationModel();
         for (ElevationModel elevationModel : cem.getElevationModels())
         {
-            if (elevationModel instanceof BulkRetrievable)
-                this.retrievables.add(new BulkRetrievablePanel((BulkRetrievable) elevationModel));
+            if (elevationModel instanceof BulkRetrievable bulkRetrievable)
+                this.retrievables.add(new BulkRetrievablePanel(bulkRetrievable));
         }
 
         // Init sector selector

diff --git a/src/gov/nasa/worldwindx/examples/KeepingObjectsInView.java b/src/gov/nasa/worldwindx/examples/KeepingObjectsInView.java
@@ -121,10 +121,10 @@ protected void addObjectsToWorldWindow(Iterable<?> objectsToTrack) {
 
             // Add the objects to track to the layers.
             for (Object o : objectsToTrack) {
-                if (o instanceof WWIcon) {
-                    iconLayer.addIcon((WWIcon) o);
-                } else if (o instanceof Renderable) {
-                    shapesLayer.addRenderable((Renderable) o);
+                if (o instanceof WWIcon icon) {
+                    iconLayer.addIcon(icon);
+                } else if (o instanceof Renderable renderable) {
+                    shapesLayer.addRenderable(renderable);
                 }
             }
 

diff --git a/src/gov/nasa/worldwindx/examples/ScreenSelection.java b/src/gov/nasa/worldwindx/examples/ScreenSelection.java
@@ -212,10 +212,10 @@ protected void highlightSelectedObjects(List<?> list)
                 // Turn on highlight if object selected.
                 for (Object o : list)
                 {
-                    if (o instanceof Highlightable)
+                    if (o instanceof Highlightable highlightable)
                     {
-                        ((Highlightable) o).setHighlighted(true);
-                        this.lastBoxHighlightObjects.add((Highlightable) o);
+                        highlightable.setHighlighted(true);
+                        this.lastBoxHighlightObjects.add(highlightable);
                     }
                 }
             }

diff --git a/src/gov/nasa/worldwindx/examples/WorldWindDiagnostics.java b/src/gov/nasa/worldwindx/examples/WorldWindDiagnostics.java
@@ -116,8 +116,8 @@ public void init(GLAutoDrawable glAutoDrawable) {
             for (Attr attr : attrs) {
                 sb.append(attr.name).append(": ");
 
-                if (attr.attr instanceof Integer) {
-                    gl.glGetIntegerv((Integer) attr.attr, intVals, 0);
+                if (attr.attr instanceof Integer attrValue) {
+                    gl.glGetIntegerv(attrValue, intVals, 0);
                     sb.append(intVals[0]).append(intVals[1] > 0 ? ", " + intVals[1] : "");
                 }