CAMEL-23459: Add TTL cleanup for pending async tasks to prevent memory leak

Fix a memory leak in the camel-docling component where pending async
conversion tasks accumulated indefinitely in the shared
`pendingAsyncTasks` map (e.g. when the consumer that would normally
poll the result is removed or never started).

Each pending task is now wrapped in an `AsyncTaskEntry` carrying a
creation timestamp. A background scheduler — interval = 10% of the
TTL, floor 1s — evicts entries older than `asyncTaskTtl` (default
24h). The eviction is additive and backward-compatible: normal task
consumption is unchanged, and only tasks that would never be claimed
are removed. Lifecycle/eviction logging is at DEBUG.

Includes a new `DoclingAsyncTaskTtlTest` (Awaitility-based, no
`Thread.sleep`) covering eviction-after-TTL, no-eviction-before-TTL,
and multi-task eviction. Pre-existing `DoclingAsyncConversionTest`
was updated to use the new `AsyncTaskEntry` wrapper (was throwing
`ClassCastException`). Top-level catalog/DSL artifacts regenerated.

Closes #23125

Author: oscerd

catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/docling.json

@@ -36,6 +36,8 @@ public boolean configure(CamelContext camelContext, Object obj, String name, Obj
         case "apiKeyHeader": getOrCreateConfiguration(target).setApiKeyHeader(property(camelContext, java.lang.String.class, value)); return true;
         case "asyncpollinterval":
         case "asyncPollInterval": getOrCreateConfiguration(target).setAsyncPollInterval(property(camelContext, long.class, value)); return true;
+        case "asynctaskttl":
+        case "asyncTaskTtl": getOrCreateConfiguration(target).setAsyncTaskTtl(property(camelContext, long.class, value)); return true;
         case "asynctimeout":
         case "asyncTimeout": getOrCreateConfiguration(target).setAsyncTimeout(property(camelContext, long.class, value)); return true;
         case "authenticationscheme":
@@ -144,6 +146,8 @@ public Class<?> getOptionType(String name, boolean ignoreCase) {
         case "apiKeyHeader": return java.lang.String.class;
         case "asyncpollinterval":
         case "asyncPollInterval": return long.class;
+        case "asynctaskttl":
+        case "asyncTaskTtl": return long.class;
         case "asynctimeout":
         case "asyncTimeout": return long.class;
         case "authenticationscheme":
@@ -253,6 +257,8 @@ public Object getOptionValue(Object obj, String name, boolean ignoreCase) {
         case "apiKeyHeader": return getOrCreateConfiguration(target).getApiKeyHeader();
         case "asyncpollinterval":
         case "asyncPollInterval": return getOrCreateConfiguration(target).getAsyncPollInterval();
+        case "asynctaskttl":
+        case "asyncTaskTtl": return getOrCreateConfiguration(target).getAsyncTaskTtl();
         case "asynctimeout":
         case "asyncTimeout": return getOrCreateConfiguration(target).getAsyncTimeout();
         case "authenticationscheme":

components/camel-ai/camel-docling/src/generated/java/org/apache/camel/component/docling/DoclingComponentConfigurer.java

@@ -29,6 +29,8 @@ public boolean configure(CamelContext camelContext, Object obj, String name, Obj
         case "apiKeyHeader": target.setApiKeyHeader(property(camelContext, java.lang.String.class, value)); return true;
         case "asyncpollinterval":
         case "asyncPollInterval": target.setAsyncPollInterval(property(camelContext, long.class, value)); return true;
+        case "asynctaskttl":
+        case "asyncTaskTtl": target.setAsyncTaskTtl(property(camelContext, long.class, value)); return true;
         case "asynctimeout":
         case "asyncTimeout": target.setAsyncTimeout(property(camelContext, long.class, value)); return true;
         case "authenticationscheme":
@@ -132,6 +134,8 @@ public Class<?> getOptionType(String name, boolean ignoreCase) {
         case "apiKeyHeader": return java.lang.String.class;
         case "asyncpollinterval":
         case "asyncPollInterval": return long.class;
+        case "asynctaskttl":
+        case "asyncTaskTtl": return long.class;
         case "asynctimeout":
         case "asyncTimeout": return long.class;
         case "authenticationscheme":
@@ -236,6 +240,8 @@ public Object getOptionValue(Object obj, String name, boolean ignoreCase) {
         case "apiKeyHeader": return target.getApiKeyHeader();
         case "asyncpollinterval":
         case "asyncPollInterval": return target.getAsyncPollInterval();
+        case "asynctaskttl":
+        case "asyncTaskTtl": return target.getAsyncTaskTtl();
         case "asynctimeout":
         case "asyncTimeout": return target.getAsyncTimeout();
         case "authenticationscheme":

components/camel-ai/camel-docling/src/generated/java/org/apache/camel/component/docling/DoclingConfigurationConfigurer.java

@@ -29,6 +29,8 @@ public boolean configure(CamelContext camelContext, Object obj, String name, Obj
         case "apiKeyHeader": target.getConfiguration().setApiKeyHeader(property(camelContext, java.lang.String.class, value)); return true;
         case "asyncpollinterval":
         case "asyncPollInterval": target.getConfiguration().setAsyncPollInterval(property(camelContext, long.class, value)); return true;
+        case "asynctaskttl":
+        case "asyncTaskTtl": target.getConfiguration().setAsyncTaskTtl(property(camelContext, long.class, value)); return true;
         case "asynctimeout":
         case "asyncTimeout": target.getConfiguration().setAsyncTimeout(property(camelContext, long.class, value)); return true;
         case "authenticationscheme":
@@ -134,6 +136,8 @@ public Class<?> getOptionType(String name, boolean ignoreCase) {
         case "apiKeyHeader": return java.lang.String.class;
         case "asyncpollinterval":
         case "asyncPollInterval": return long.class;
+        case "asynctaskttl":
+        case "asyncTaskTtl": return long.class;
         case "asynctimeout":
         case "asyncTimeout": return long.class;
         case "authenticationscheme":
@@ -240,6 +244,8 @@ public Object getOptionValue(Object obj, String name, boolean ignoreCase) {
         case "apiKeyHeader": return target.getConfiguration().getApiKeyHeader();
         case "asyncpollinterval":
         case "asyncPollInterval": return target.getConfiguration().getAsyncPollInterval();
+        case "asynctaskttl":
+        case "asyncTaskTtl": return target.getConfiguration().getAsyncTaskTtl();
         case "asynctimeout":
         case "asyncTimeout": return target.getConfiguration().getAsyncTimeout();
         case "authenticationscheme":

components/camel-ai/camel-docling/src/generated/java/org/apache/camel/component/docling/DoclingEndpointConfigurer.java

@@ -23,10 +23,11 @@ public class DoclingEndpointUriFactory extends org.apache.camel.support.componen
     private static final Set<String> SECRET_PROPERTY_NAMES;
     private static final Map<String, String> MULTI_VALUE_PREFIXES;
     static {
-        Set<String> props = new HashSet<>(51);
+        Set<String> props = new HashSet<>(52);
         props.add("abortOnError");
         props.add("apiKeyHeader");
         props.add("asyncPollInterval");
+        props.add("asyncTaskTtl");
         props.add("asyncTimeout");
         props.add("authenticationScheme");
         props.add("authenticationToken");