Method postToSystem() is automatically called on deployment in spring - spring

Question

I have a simple Spring application, with a bean which contains a method with the name postToSystem(parameters) without any annotations and it is automatically called on deployment (and throws an exception). Could someone explain me what is the problem here? Is it the method name? The stacktrace when it is called is:
Daemon Thread [http-bio-127.0.0.1-8080-exec-1] (Suspended (breakpoint at line 128 in CustomerExportServiceImpl))
owns: ConcurrentHashMap<K,V> (id=93)
owns: Object (id=94)
owns: StandardContext (id=95)
owns: ManagerServlet (id=96)
owns: SocketWrapper<E> (id=97)
CustomerExportServiceImpl.<init>() line: 128
NativeConstructorAccessorImpl.newInstance0(Constructor, Object[]) line: not available [native method] [local variables unavailable]
NativeConstructorAccessorImpl.newInstance(Object[]) line: 57
DelegatingConstructorAccessorImpl.newInstance(Object[]) line: 45
Constructor<T>.newInstance(Object...) line: 526
BeanUtils.instantiateClass(Constructor<T>, Object...) line: 148
CglibSubclassingInstantiationStrategy(SimpleInstantiationStrategy).instantiate(RootBeanDefinition, String, BeanFactory) line: 87
DefaultListableBeanFactory(AbstractAutowireCapableBeanFactory).instantiateBean(String, RootBeanDefinition) line: 1000
DefaultListableBeanFactory(AbstractAutowireCapableBeanFactory).createBeanInstance(String, RootBeanDefinition, Object[]) line: 953
DefaultListableBeanFactory(AbstractAutowireCapableBeanFactory).doCreateBean(String, RootBeanDefinition, Object[]) line: 487
DefaultListableBeanFactory(AbstractAutowireCapableBeanFactory).createBean(String, RootBeanDefinition, Object[]) line: 458
AbstractBeanFactory$1.getObject() line: 295
DefaultListableBeanFactory(DefaultSingletonBeanRegistry).getSingleton(String, ObjectFactory) line: 223
DefaultListableBeanFactory(AbstractBeanFactory).doGetBean(String, Class<T>, Object[], boolean) line: 292
DefaultListableBeanFactory(AbstractBeanFactory).getBean(String) line: 194
DefaultListableBeanFactory.preInstantiateSingletons() line: 626
XmlWebApplicationContext(AbstractApplicationContext).finishBeanFactoryInitialization(ConfigurableListableBeanFactory) line: 932
XmlWebApplicationContext(AbstractApplicationContext).refresh() line: 479
ContextLoaderListener(ContextLoader).configureAndRefreshWebApplicationContext(ConfigurableWebApplicationContext, ServletContext) line: 389
ContextLoaderListener(ContextLoader).initWebApplicationContext(ServletContext) line: 294
ContextLoaderListener.contextInitialized(ServletContextEvent) line: 112
StandardContext.listenerStart() line: 4973
StandardContext.startInternal() line: 5467
StandardContext(LifecycleBase).start() line: 150
StandardHost(ContainerBase).addChildInternal(Container) line: 901
StandardHost(ContainerBase).addChild(Container) line: 877
StandardHost.addChild(Container) line: 632
HostConfig.deployWAR(ContextName, File) line: 1083
HostConfig.deployApps(String) line: 553
HostConfig.check(String) line: 1671
NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]
NativeMethodAccessorImpl.invoke(Object, Object[]) line: 57
DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 43
Method.invoke(Object, Object...) line: 606
BaseModelMBean.invoke(String, Object[], String[]) line: 301
DefaultMBeanServerInterceptor.invoke(ObjectName, String, Object[], String[]) line: 819
JmxMBeanServer.invoke(ObjectName, String, Object[], String[]) line: 801
ManagerServlet.check(String) line: 1485
ManagerServlet.deploy(PrintWriter, ContextName, String, boolean, HttpServletRequest, StringManager) line: 709
ManagerServlet.doPut(HttpServletRequest, HttpServletResponse) line: 450
ManagerServlet(HttpServlet).service(HttpServletRequest, HttpServletResponse) line: 649
ManagerServlet(HttpServlet).service(ServletRequest, ServletResponse) line: 727
ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 303
ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208
WsFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 52
ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241
ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208
SetCharacterEncodingFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 108
ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241
ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208
StandardWrapperValve.invoke(Request, Response) line: 220
StandardContextValve.invoke(Request, Response) line: 122
BasicAuthenticator(AuthenticatorBase).invoke(Request, Response) line: 610
StandardHostValve.invoke(Request, Response) line: 171
ErrorReportValve.invoke(Request, Response) line: 102
AccessLogValve.invoke(Request, Response) line: 950
StandardEngineValve.invoke(Request, Response) line: 116
CoyoteAdapter.service(Request, Response) line: 408
Http11Processor(AbstractHttp11Processor<S>).process(SocketWrapper<S>) line: 1040
Http11Protocol$Http11ConnectionHandler(AbstractProtocol$AbstractConnectionHandler<S,P>).process(SocketWrapper<S>, SocketStatus) line: 607
JIoEndpoint$SocketProcessor.run() line: 314
ThreadPoolExecutor(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1145
ThreadPoolExecutor$Worker.run() line: 615
TaskThread$WrappingRunnable.run() line: 61
TaskThread(Thread).run() line: 745
applicationContext.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">
<!-- post-processors for all standard config annotations -->
<context:annotation-config />
<context:component-scan base-package="com.mydomain.service" />
<bean id="jndiDataSourceLookup" class="org.springframework.jdbc.datasource.lookup.JndiDataSourceLookup"/>
<!-- + OTHER BEANS ARE ALSO DEFINED-->
</beans>
Spring version: 3.2.3