Fix ContextValue scoping issues with KameletProcessor and JDK 25 compilation

The ContextValue abstraction properly scopes createRoute/createProcessor
ThreadLocals, but KameletEndpoint.doInit() relied on a leaked ThreadLocal
value from a bug in the old createRoute(null) which cleared isSetupRoutes
instead of isCreateRoute. Fix by capturing the route/processor context in
KameletReifier (within the createProcessor scope) and passing them to
KameletProcessor, which restores them during doInit() so the endpoint can
inherit error handlers correctly.

Also fix JDK 25 ScopedValue.Carrier API: use call() instead of get().

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: gnodet

components/camel-kamelet/src/main/java/org/apache/camel/component/kamelet/KameletProcessor.java

@@ -43,16 +43,25 @@ public class KameletProcessor extends BaseProcessorSupport
 
     private final String name;
     private final AsyncProcessor processor;
+    private final String parentRouteId;
+    private final String parentProcessorId;
     private KameletProducer producer;
     private KameletComponent component;
     private CamelContext camelContext;
     private String id;
     private String routeId;
 
     public KameletProcessor(CamelContext camelContext, String name, Processor processor) throws Exception {
+        this(camelContext, name, processor, null, null);
+    }
+
+    public KameletProcessor(CamelContext camelContext, String name, Processor processor,
+                            String parentRouteId, String parentProcessorId) throws Exception {
         this.camelContext = camelContext;
         this.name = name;
         this.processor = AsyncProcessorConverterHelper.convert(processor);
+        this.parentRouteId = parentRouteId;
+        this.parentProcessorId = parentProcessorId;
     }
 
     @ManagedAttribute(description = "Kamelet name (templateId/routeId?options)")
@@ -118,7 +127,25 @@ public String getTraceLabel() {
     @Override
     protected void doInit() throws Exception {
         this.component = camelContext.getComponent("kamelet", KameletComponent.class);
-        this.producer = (KameletProducer) camelContext.getEndpoint("kamelet://" + name).createAsyncProducer();
+
+        // set the route/processor context so the KameletEndpoint.doInit() can pick them up
+        // these were captured during construction (within the createProcessor scope)
+        if (parentRouteId != null) {
+            camelContext.getCamelContextExtension().createRoute(parentRouteId);
+        }
+        if (parentProcessorId != null) {
+            camelContext.getCamelContextExtension().createProcessor(parentProcessorId);
+        }
+        try {
+            this.producer = (KameletProducer) camelContext.getEndpoint("kamelet://" + name).createAsyncProducer();
+        } finally {
+            if (parentRouteId != null) {
+                camelContext.getCamelContextExtension().createRoute(null);
+            }
+            if (parentProcessorId != null) {
+                camelContext.getCamelContextExtension().createProcessor(null);
+            }
+        }
 
         ServiceHelper.initService(processor, producer);
 

components/camel-kamelet/src/main/java/org/apache/camel/component/kamelet/KameletReifier.java

@@ -40,8 +40,14 @@ public Processor createProcessor() throws Exception {
         // wrap in uow
         String outputId = definition.idOrCreate(camelContext.getCamelContextExtension().getContextPlugin(NodeIdFactory.class));
         final Processor childProcessor = processor;
+        // capture route/processor context now (within createProcessor scope) for later use by KameletProcessor
+        final String parentRouteId = camelContext.getCamelContextExtension().getCreateRoute();
         return camelContext.getCamelContextExtension().createProcessor(outputId, () -> {
-            Processor answer = new KameletProcessor(camelContext, parseString(definition.getName()), childProcessor);
+            final String parentProcessorId = camelContext.getCamelContextExtension().getCreateProcessor();
+            Processor answer
+                    = new KameletProcessor(
+                            camelContext, parseString(definition.getName()), childProcessor,
+                            parentRouteId, parentProcessorId);
             if (answer instanceof DisabledAware da) {
                 da.setDisabled(isDisabled(camelContext, definition));
             }

core/camel-util/src/main/java25/org/apache/camel/util/concurrent/ContextValueFactory.java

@@ -81,8 +81,7 @@ static <T> ContextValue<T> newThreadLocal(String name, Supplier<T> supplier) {
      */
     static <T, R> R where(ContextValue<T> key, T value, Supplier<R> operation) {
         if (key instanceof ScopedValueContextValue<T> svKey) {
-            // In JDK 25+, ScopedValue.where() returns a Carrier that has get() method
-            return ScopedValue.where(svKey.scopedValue, value).get(operation);
+            return ScopedValue.where(svKey.scopedValue, value).call(operation::get);
         } else if (key instanceof ThreadLocalContextValue<T> tlKey) {
             T oldValue = tlKey.get();
             try {