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Cannot save Documents in WebDAV after some time

Question asked by cibex on Nov 12, 2014
Hello,

after editing a Document (Libre Office, MS Office) via WebDAV I´m not able to save it after some time.
Properties are still the same (see also attachment):
cm:lockType      d:text   WRITE_LOCK
cm:lockLifetime  d:text   EPHEMERAL
However in Share the information "This document is locked by …“ has diappeared.

I have 2 Workarounds:
Manually checkin/checkout
Via script node.unlock()

Saving throws an NPE:
Nov 12, 2014 4:57:53 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [WebDAV] in context with path [/alfresco] threw exception
java.lang.NullPointerException
at org.alfresco.repo.webdav.auth.BaseNTLMAuthenticationFilter.processType3(BaseNTLMAuthenticationFilter.java:569)
at org.alfresco.repo.webdav.auth.BaseNTLMAuthenticationFilter.authenticateRequest(BaseNTLMAuthenticationFilter.java:297)
at org.alfresco.repo.webdav.auth.BaseSSOAuthenticationFilter.doFilter(BaseSSOAuthenticationFilter.java:135)
at sun.reflect.GeneratedMethodAccessor934.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.alfresco.repo.management.subsystems.ChainingSubsystemProxyFactory$1.invoke(ChainingSubsystemProxyFactory.java:112)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy299.doFilter(Unknown Source)
at org.alfresco.repo.web.filter.beans.BeanProxyFilter.doFilter(BeanProxyFilter.java:82)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

Does anybody have an idea? Are there specific WebDAV Timeouts?

Thanks in advance

kr

Josef

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