Migrate all test classes from createService() to createSingletonService()

Migrate every test class that used createService() to use
createSingletonService(), so all tests share a single container
instance per JVM. This reduces Docker overhead and prepares for
safe within-JVM parallel test execution.

Tests that required isolation fixes to work with shared containers:
- Google PubSub: catch AlreadyExistsException in topic/subscription setup
- Hashicorp Vault: use per-class secret paths to prevent version collisions
- Spring-RabbitMQ: use uniqueName() helper for exchange/queue names
- LRA: delta-tolerant assertions for shared coordinator state
- Consul: remove manual initialization (singleton handles lifecycle)

86 test files migrated across 30+ components, eliminating all
remaining createService() usage in test code.

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

Author: gnodet

components/camel-ai/camel-chatscript/src/test/java/org/apache/camel/component/ChatScriptComponentIT.java

@@ -37,7 +37,7 @@ public class ChatScriptComponentIT extends CamelTestSupport {
     private static final Logger LOG = LoggerFactory.getLogger(ChatScriptComponentIT.class);
 
     @RegisterExtension
-    public static ChatScriptService service = ChatScriptServiceFactory.createService();
+    public static ChatScriptService service = ChatScriptServiceFactory.createSingletonService();
 
     @Test
     public void testChatScript() throws Exception {

components/camel-ai/camel-docling/src/test/java/org/apache/camel/component/docling/integration/DoclingITestSupport.java

@@ -31,7 +31,7 @@ public abstract class DoclingITestSupport extends CamelTestSupport {
     protected static final Logger LOG = LoggerFactory.getLogger(DoclingITestSupport.class);
 
     @RegisterExtension
-    static DoclingService doclingService = DoclingServiceFactory.createService();
+    static DoclingService doclingService = DoclingServiceFactory.createSingletonService();
 
     @Override
     protected CamelContext createCamelContext() throws Exception {

components/camel-ai/camel-docling/src/test/java/org/apache/camel/component/docling/integration/OcrExtractionIT.java

@@ -58,7 +58,7 @@ class OcrExtractionIT extends CamelTestSupport {
     private static final String TEST_TEXT_LINE3 = "OCR Test Document";
 
     @RegisterExtension
-    static DoclingService doclingService = DoclingServiceFactory.createService();
+    static DoclingService doclingService = DoclingServiceFactory.createSingletonService();
 
     @Override
     protected CamelContext createCamelContext() throws Exception {

components/camel-ai/camel-kserve/src/test/java/org/apache/camel/component/kserve/it/KServeITSupport.java

@@ -26,7 +26,7 @@
 class KServeITSupport extends CamelTestSupport {
 
     @RegisterExtension
-    static TritonService service = TritonServiceFactory.createService();
+    static TritonService service = TritonServiceFactory.createSingletonService();
 
     @Override
     protected CamelContext createCamelContext() throws Exception {

components/camel-ai/camel-langchain4j-agent/src/test/java/org/apache/camel/component/langchain4j/agent/integration/LangChain4jAgentMcpAndCamelToolsIT.java

@@ -75,7 +75,7 @@ public class LangChain4jAgentMcpAndCamelToolsIT extends CamelTestSupport {
     static OllamaService OLLAMA = OllamaServiceFactory.createSingletonService();
 
     @RegisterExtension
-    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createService();
+    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createSingletonService();
 
     @Override
     protected void setupResources() throws Exception {

components/camel-ai/camel-openai/src/test/java/org/apache/camel/component/openai/integration/OpenAIMcpAdvancedIT.java

@@ -51,7 +51,7 @@ public class OpenAIMcpAdvancedIT extends OpenAITestSupport {
     private static final String MCP_PROTOCOL_VERSIONS = "2024-11-05,2025-03-26,2025-06-18";
 
     @RegisterExtension
-    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createService();
+    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createSingletonService();
 
     private String returnDirectEndpointUri;
 

components/camel-ai/camel-openai/src/test/java/org/apache/camel/component/openai/integration/OpenAIMcpConversationStoreIT.java

@@ -57,7 +57,7 @@ public class OpenAIMcpConversationStoreIT extends OpenAITestSupport {
     private final Map<String, List<?>> conversationStore = new ConcurrentHashMap<>();
 
     @RegisterExtension
-    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createService();
+    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createSingletonService();
 
     @Override
     protected RouteBuilder createRouteBuilder() {

components/camel-ai/camel-openai/src/test/java/org/apache/camel/component/openai/integration/OpenAIMcpManualToolLoopIT.java

@@ -51,7 +51,7 @@ public class OpenAIMcpManualToolLoopIT extends OpenAITestSupport {
     private static final String MCP_PROTOCOL_VERSIONS = "2024-11-05,2025-03-26,2025-06-18";
 
     @RegisterExtension
-    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createService();
+    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createSingletonService();
 
     @Override
     protected RouteBuilder createRouteBuilder() {

components/camel-ai/camel-openai/src/test/java/org/apache/camel/component/openai/integration/OpenAIMcpToolsIT.java

@@ -43,7 +43,7 @@
 public class OpenAIMcpToolsIT extends OpenAITestSupport {
 
     @RegisterExtension
-    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createService();
+    static McpEverythingService MCP_EVERYTHING = McpEverythingServiceFactory.createSingletonService();
 
     @Override
     protected RouteBuilder createRouteBuilder() {

components/camel-ai/camel-tensorflow-serving/src/test/java/org/apache/camel/component/torchserve/it/TensorFlowServingITSupport.java

@@ -26,7 +26,7 @@
 class TensorFlowServingITSupport extends CamelTestSupport {
 
     @RegisterExtension
-    static TensorFlowServingService service = TensorFlowServingServiceFactory.createService();
+    static TensorFlowServingService service = TensorFlowServingServiceFactory.createSingletonService();
 
     @Override
     protected CamelContext createCamelContext() throws Exception {