export and import Error was Port already in use 40011

I am using jasperreports-server-cp-6.0.1-bin.zip on CentOS 6.3 and Tomcat 7.0.37. The database is MySQL 5.6. There is no error in log files and it is working. But, running js-export.sh results in the following error. The export file appeas fine as I can import it. But, it does hang for a few minutes during export and import. I am getting the same error message when importing objects into jasperReports. Is there a way to resolve the error during exporting and importing?

[jasper@dev-reports-1 buildomatic]$ js-export.sh --uris /Liberty_Global --output-zip /tmp/jsexp_test.zip
Buildfile: /data/jasper60/jasperreports-server-cp-6.0.1-bin/buildomatic/build.xml
     [echo] Filtering properties (cleaning out blank spaces)
     [echo] chkIfPackageManagedTomcat: check if package managed tomcat
     [echo] Tomcat DBCP Factory: com.jaspersoft.jasperserver.tomcat.jndi.JSBasicDataSourceFactory
     [echo] chkAndSetLocaleDbSettings: parse: scripts.properties for db commands
     [echo] chkIfPackageManagedTomcat: check if package managed tomcat
     [echo] using settings file: /data/jasper60/jasperreports-server-cp-6.0.1-bin/buildomatic/build_conf/default/maven_settings.xml

validate-database:
     [echo] Validating JasperServer database connection at jdbc:mysql://10.210.15.201:3306/jasperserver?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&autoReconnectForPools=true. Phase: [import-export-test]
     [echo] For JDBC driver the artifactId and version properties are set:
     [echo]   maven.jdbc.artifactId=mariadb-java-client
     [echo]   maven.jdbc.version=1.1.2
     [echo]   Specified JDBC driver jar exists
[advanced-sql] Executing commands
[advanced-sql] 1 of 1 SQL statements executed successfully
     [echo] Connection OK

BUILD SUCCESSFUL
Total time: 1 second
Using CE setup
First resource path:/data/jasper60/jasperreports-server-cp-6.0.1-bin/buildomatic/conf_source/ieCe/applicationContext-search.xml
Started to load resources
Resource name: applicationContext.xml
Resource name: applicationContext-cascade.xml
Resource name: applicationContext-data-snapshots.xml
Resource name: applicationContext-events-logging.xml
Resource name: applicationContext-export-config.xml
Resource name: applicationContext-export-import.xml
Resource name: applicationContext-logging.xml
Resource name: applicationContext-olap-connection.xml
Resource name: applicationContext-propertySettings.xml
Resource name: applicationContext-report-scheduling.xml
Resource name: applicationContext-search.xml
Resource name: applicationContext-security.xml
Resource name: applicationContext-themes.xml
Resource name: applicationContext-virtual-data-source.xml
Exception starting RMI registry. Error was Port already in use: 40011; nested exception is:
        java.net.BindException: Address already in use
java.rmi.server.ExportException: Port already in use: 40011; nested exception is:
        java.net.BindException: Address already in use
        at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:340)
        at sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:248)
        at sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:411)
        at sun.rmi.transport.LiveRef.exportObject(LiveRef.java:147)
        at sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:207)
        at sun.rmi.registry.RegistryImpl.setup(RegistryImpl.java:122)
        at sun.rmi.registry.RegistryImpl.<init>(RegistryImpl.java:108)
        at java.rmi.registry.LocateRegistry.createRegistry(LocateRegistry.java:203)
        at net.sf.ehcache.distribution.RMICacheManagerPeerListener.startRegistry(RMICacheManagerPeerListener.java:326)
        at net.sf.ehcache.distribution.RMICacheManagerPeerListener.init(RMICacheManagerPeerListener.java:205)
        at net.sf.ehcache.event.CacheManagerEventListenerRegistry.init(CacheManagerEventListenerRegistry.java:104)
        at net.sf.ehcache.CacheManager.doInit(CacheManager.java:442)
        at net.sf.ehcache.CacheManager.init(CacheManager.java:374)
        at net.sf.ehcache.CacheManager.<init>(CacheManager.java:259)
        at net.sf.ehcache.CacheManager.newInstance(CacheManager.java:1029)
        at net.sf.ehcache.CacheManager.newInstance(CacheManager.java:1005)
        at net.sf.ehcache.CacheManager.create(CacheManager.java:990)
        at net.sf.ehcache.hibernate.SingletonEhCacheRegionFactory.start(SingletonEhCacheRegionFactory.java:77)
        at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:221)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1341)
        at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:863)
        at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:782)
        at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:188)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1417)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1158)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1417)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1158)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at org.springframework.aop.framework.ProxyFactoryBean.freshTargetSource(ProxyFactoryBean.java:572)
        at org.springframework.aop.framework.ProxyFactoryBean.getSingletonInstance(ProxyFactoryBean.java:306)
        at org.springframework.aop.framework.ProxyFactoryBean.getObject(ProxyFactoryBean.java:243)
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)
        at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:102)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1468)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:307)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:445)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:419)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:547)
        at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:155)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
        at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:304)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1146)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:633)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
        at com.jaspersoft.jasperserver.export.BaseExportImportCommand.createSpringContext(BaseExportImportCommand.java:129)
        at com.jaspersoft.jasperserver.export.BaseExportImportCommand.process(BaseExportImportCommand.java:82)
        at com.jaspersoft.jasperserver.export.ExportCommand.main(ExportCommand.java:43)
Caused by: java.net.BindException: Address already in use
        at java.net.PlainSocketImpl.socketBind(Native Method)
        at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376)
        at java.net.ServerSocket.bind(ServerSocket.java:376)
        at java.net.ServerSocket.<init>(ServerSocket.java:237)
        at java.net.ServerSocket.<init>(ServerSocket.java:128)
        at sun.rmi.transport.proxy.RMIDirectSocketFactory.createServerSocket(RMIDirectSocketFactory.java:45)
        at sun.rmi.transport.proxy.RMIMasterSocketFactory.createServerSocket(RMIMasterSocketFactory.java:344)
        at sun.rmi.transport.tcp.TCPEndpoint.newServerSocket(TCPEndpoint.java:666)
        at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:329)
        ... 77 more
Exporting repository resource /Liberty_Global/Input_Data_Types/avn_dt_dateonly
Exporting repository resource /Liberty_Global/Input_Data_Types/avn_dt_datetime
Exporting repository resource /Liberty_Global/Input_Data_Types/avn_dt_number
...