IOException while loading persisted sessions: java.io.EOFException

[ylazez]

while trying to run my spring application
using spring 3.0.0,spring security 3.0.2

i got this excption on startup:

 IOException while loading persisted sessions: java.io.EOFException
java.io.EOFException
	at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2281)
	at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2750)
	at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780)
	at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
	at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectInputStream.java:58)
	at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:362)
	at org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
	at org.apache.catalina.session.StandardManager.start(StandardManager.java:637)
	at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:438)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4358)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:516)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Apr 28, 2010 1:14:20 PM org.apache.catalina.session.StandardManager start
SEVERE: Exception loading sessions from persistent storage
java.io.EOFException
	at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2281)
	at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2750)
	at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780)
	at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
	at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectInputStream.java:58)
	at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:362)
	at org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
	at org.apache.catalina.session.StandardManager.start(StandardManager.java:637)
	at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:438)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4358)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:516)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

why am i getting it?

[Marten Deinum]

Use the search similair questions have been answered before.

Tomcat serializes session state if you shutdown tomcat nicely, at startup those are reloaded again, if you changed objects, redeployed/compiled this might fail.