org.springframework.remoting.RemoteAccessException: Could not access HTTP invoker remote service occurs when starting tasks from anbother thread

Question

I have spring application with JavaFX client, and I get this exception when ever come method is called which runs in another thread (for background tasks) - which is not the main JavaFx thread.

org.springframework.remoting.RemoteAccessException: Could not access HTTP invoker remote service at [http://localhost:8080/server/service/security/UserGroupService]; 
 nested exception is java.net.SocketTimeoutException: Read timed out
at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.convertHttpInvokerAccessException(HttpInvokerClientInterceptor.java:211)
at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:144)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy63.batchJobSetAccessRightsToConsultant(Unknown Source)
at client.view.control.reporting.AccessRightsBatchDialog$1Local$744.invoke$(AccessRightsBatchDialog.fx:374)
at com.sun.javafx.functions.Function1.invoke(Function1.java:44)
at com.sun.javafx.functions.Function1.invoke$(Function1.java:38)
at client.async.AsyncTask.taskRun(AsyncTask.fx:71)
at client.async.AsyncTaskHelper.run(AsyncTaskHelper.java:32)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
  Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:78)
at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106)
at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1116)
at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1413)
at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1973)
at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1735)
at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1098)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
at org.springframework.remoting.httpinvoker.CommonsHttpInvokerRequestExecutor.executePostMethod(CommonsHttpInvokerRequestExecutor.java:195)
at org.springframework.remoting.httpinvoker.CommonsHttpInvokerRequestExecutor.doExecuteRequest(CommonsHttpInvokerRequestExecutor.java:129)
at org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor.executeRequest(AbstractHttpInvokerRequestExecutor.java:136)
at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:191)
at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:173)
at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:141)
... 11 more

The last change I made, and I suspect, a cause of this - because I need user info from HTTP session, in each service proxy , I am passing this httpInvokerRequestExecutor bean:

<bean id="httpInvokerRequestExecuter" class="org.springframework.remoting.httpinvoker.CommonsHttpInvokerRequestExecutor" >

for example:

<bean id="testServiceProxy"
    class="org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean">
    <property name="serviceUrl" value="${remoteUrl}/service/test/TestService" />
    <property name="serviceInterface"
        value="common.service.test.TestService" />
    <property name="httpInvokerRequestExecutor" ref="httpInvokerRequestExecuter" />
</bean>

With methods which run in main thread, this never seems to happen.

All ideas on caused and possible solutions are very welcomed.

Solution

Inrease the read timeout for httpInvokerRequestExecuter. The default is a minute. You can either increase it or set to 0 which means it will never timeout (probably not a good idea but good for a test).

Bean definition to remove readTimeout (or set it to applicable amount):

<bean id="httpInvokerRequestExecuter" class="org.springframework.remoting.httpinvoker.CommonsHttpInvokerRequestExecuto‌​r" > 
     <property name="readTimeout" value="0" /> 
</bean>