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The following commit(s) were added to refs/heads/main by this push:
new 0ec73cf66fb5 CAMEL-23282: fix unbounded BeanInfo cache growth for body
OGNL expressions
0ec73cf66fb5 is described below
commit 0ec73cf66fb5167f7b8d50074456b8d85c2de47e
Author: Croway <[email protected]>
AuthorDate: Fri Apr 3 16:19:06 2026 +0200
CAMEL-23282: fix unbounded BeanInfo cache growth for body OGNL expressions
Always use class-based cache keys since introspection results depend on
the class type, not the instance identity. Instance-based keys caused
cache pollution and memory leaks for ephemeral message bodies.
---
.../org/apache/camel/component/bean/BeanInfo.java | 19 ++---
.../component/bean/BeanInfoCacheBodyOgnlTest.java | 80 ++++++++++++++++++++++
2 files changed, 86 insertions(+), 13 deletions(-)
diff --git
a/components/camel-bean/src/main/java/org/apache/camel/component/bean/BeanInfo.java
b/components/camel-bean/src/main/java/org/apache/camel/component/bean/BeanInfo.java
index f51695b2796a..904e8cfdfdbf 100644
---
a/components/camel-bean/src/main/java/org/apache/camel/component/bean/BeanInfo.java
+++
b/components/camel-bean/src/main/java/org/apache/camel/component/bean/BeanInfo.java
@@ -44,7 +44,6 @@ import org.apache.camel.Message;
import org.apache.camel.PropertyInject;
import org.apache.camel.Variable;
import org.apache.camel.Variables;
-import org.apache.camel.support.DefaultExchange;
import org.apache.camel.support.ObjectHelper;
import org.apache.camel.support.builder.ExpressionBuilder;
import org.apache.camel.support.language.AnnotationExpressionFactory;
@@ -163,18 +162,12 @@ public class BeanInfo {
operationsWithHandlerAnnotation =
Collections.unmodifiableList(operationsWithHandlerAnnotation);
methodMap = Collections.unmodifiableMap(methodMap);
- // key must be instance based for custom/handler annotations
- boolean instanceBased = !operationsWithCustomAnnotation.isEmpty() ||
!operationsWithHandlerAnnotation.isEmpty();
- // do not cache Exchange based beans
- instanceBased &= DefaultExchange.class != type;
- if (instanceBased) {
- // add new bean info to cache (instance based)
- component.addBeanInfoToCache(key, this);
- } else {
- // add new bean info to cache (not instance based, favor key2 if
possible)
- BeanInfoCacheKey k = key2 != null ? key2 : key;
- component.addBeanInfoToCache(k, this);
- }
+ // always use class-based caching (key2 when available) since
introspection
+ // results depend on the class type, not the instance identity.
+ // Instance-based keys cause unbounded cache growth for ephemeral
message bodies
+ // used with OGNL expressions like ${body.xxx} (CAMEL-23282).
+ BeanInfoCacheKey k = key2 != null ? key2 : key;
+ component.addBeanInfoToCache(k, this);
}
public Class<?> getType() {
diff --git
a/core/camel-core/src/test/java/org/apache/camel/component/bean/BeanInfoCacheBodyOgnlTest.java
b/core/camel-core/src/test/java/org/apache/camel/component/bean/BeanInfoCacheBodyOgnlTest.java
new file mode 100644
index 000000000000..ff5f8a427be7
--- /dev/null
+++
b/core/camel-core/src/test/java/org/apache/camel/component/bean/BeanInfoCacheBodyOgnlTest.java
@@ -0,0 +1,80 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.camel.component.bean;
+
+import org.apache.camel.ContextTestSupport;
+import org.apache.camel.Exchange;
+import org.apache.camel.builder.RouteBuilder;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * Test for CAMEL-23282: Body OGNL expressions like ${body.name} must use
class-based BeanInfo caching, not
+ * instance-based, even when the body class has methods with Exchange/Message
parameters or handler annotations.
+ */
+public class BeanInfoCacheBodyOgnlTest extends ContextTestSupport {
+
+ @Test
+ public void testBodyOgnlCacheUsesClassKey() throws Exception {
+ BeanComponent bean = context.getComponent("bean", BeanComponent.class);
+
+ assertEquals(0, bean.getCurrentBeanCacheSize());
+
+ getMockEndpoint("mock:result").expectedMessageCount(5);
+
+ for (int i = 0; i < 5; i++) {
+ template.sendBody("direct:start", new MyOrder("order-" + i));
+ }
+
+ assertMockEndpointsSatisfied();
+
+ // cache should have 1 entry (class-based), not 5 (instance-based)
+ assertEquals(1, bean.getCurrentBeanCacheSize());
+ }
+
+ @Override
+ protected RouteBuilder createRouteBuilder() {
+ return new RouteBuilder() {
+ @Override
+ public void configure() {
+ from("direct:start")
+ .setHeader("orderName", simple("${body.name}"))
+ .to("mock:result");
+ }
+ };
+ }
+
+ /**
+ * Body class with a method accepting Exchange — this previously triggered
instance-based BeanInfo caching.
+ */
+ public static class MyOrder {
+ private final String name;
+
+ public MyOrder(String name) {
+ this.name = name;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void process(Exchange exchange) {
+ // triggers hasCustomAnnotation=true in BeanInfo introspection
+ }
+ }
+}
