suxuan created CXF-9095:
---------------------------
Summary: Connection Leak in HttpClientWrappedOutputStream due to
Unreleased Resources on IOException
Key: CXF-9095
URL: https://issues.apache.org/jira/browse/CXF-9095
Project: CXF
Issue Type: Bug
Components: Transports
Affects Versions: 4.0.6, 4.0.5, 4.0.4, 4.0.3, 4.0.2, 4.0.1
Environment: - Apache CXF Version: 4.0.6
- Java Version: OpenJDK 17.0.12
- Operating System: Ubuntu 18.04 AMD 64
Reporter: suxuan
Attachments: 截屏2025-01-07 15.26.40.png, 截屏2025-01-07 15.27.19.png
When the `close` method of the parent class
`org.apache.cxf.transport.http.HTTPConduit.WrappedOutputStream` is called, a
timeout occurs at line 1420, resulting in an `IOException`. This exception is
caught at line 1428 and subsequently rethrown to the upper layer.
The upper layer, specifically the `close` method in
`org.apache.cxf.transport.http.HttpClientHTTPConduit.HttpClientWrappedOutputStream`,
does not properly handle the exception. As a result, the `pout` resource
(which corresponds to the socket for writing) is not released, leading to a
connection leak.
{code:java}
// code placeholder
Caused by: java.net.http.HttpTimeoutException: HttpTimeoutException invoking
https://reporting.api.bingads.microsoft.com/Reporting/v13/GenerateReport/Poll:
Timeout at
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method) at
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at
java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.mapException(HTTPConduit.java:1452)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1433)
at
org.apache.cxf.transport.http.HttpClientHTTPConduit$HttpClientWrappedOutputStream.close(HttpClientHTTPConduit.java:824)
at
org.apache.cxf.io.AbstractWrappedOutputStream.close(AbstractWrappedOutputStream.java:77)
at
org.apache.cxf.io.AbstractWrappedOutputStream.close(AbstractWrappedOutputStream.java:77)
at
org.apache.cxf.io.AbstractThresholdOutputStream.close(AbstractThresholdOutputStream.java:102)
at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56) at
org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:717) at
org.apache.cxf.transport.http.HttpClientHTTPConduit.close(HttpClientHTTPConduit.java:261)
at
org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:63)
at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
at
org.apache.cxf.jaxrs.client.AbstractClient.doRunInterceptorChain(AbstractClient.java:717)
at
org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:1085)
... 17 moreCaused by: java.net.http.HttpTimeoutException: Timeout at
org.apache.cxf.transport.http.HttpClientHTTPConduit$HttpClientWrappedOutputStream.getResponse(HttpClientHTTPConduit.java:1074)
at
org.apache.cxf.transport.http.HttpClientHTTPConduit$HttpClientWrappedOutputStream.getResponseCode(HttpClientHTTPConduit.java:1081)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.doProcessResponseCode(HTTPConduit.java:1653)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1684)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1626)
at
org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1420)
... 28 moreCaused by: java.util.concurrent.TimeoutException at
java.base/java.util.concurrent.CompletableFuture.timedGet(CompletableFuture.java:1960)
at
java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2095)
at
org.apache.cxf.transport.http.HttpClientHTTPConduit$HttpClientWrappedOutputStream.getResponse(HttpClientHTTPConduit.java:1052)
... 33 more {code}
As the service runs, the number of TCP connections in the CLOSE_WAIT state in
the system continues to increase until no connections are available.
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