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Subject: APACHE DS 1.5.5 Embedded - Updating multi values attributes with
 nulls
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 <OFAA2486C0.F45174A5-ON8525768D.00628738-0525768D.0062ADA4@nyslrs.osc.state.ny.us>
From: RNakka@osc.state.ny.us
Date: Tue, 15 Dec 2009 12:57:58 -0500
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Hi,

We are using APACHE DS 1.5.5 in embedded mode for testng tests. During 
some of our tests , we  are trying  to update a User's multi valued 
attributes

If we pass not null values, then the attributes are updated with out any 
problem.But if we pass a null value or an empty list we get a null pointer 
exception and the attribute is not updated. Please find the exception 
trace attached below.

This was working in APACHE DS 1.5.4 ( NOT embedded version) server

We are using Spring LDAP 1.3 API to connect and perform operations on the 
embedded APACHE DS from testng. 

We tried two ways to update the multi valued attribute (email2) with a 
null. Our goal is to not have any values in the multi valued attribute 
(email2)

1. Trying to remove the attribute from user in APACHE DS, as its desired 
to be null

        DirContextOperations context;
        context.removeAttributeValue("email2", oldValuesArray);

2. Trying to Pass an empty list to update the multi valued attribute. So 
that the multivalued attribute becomes empty.


        DirContextOperations context;
        String[] userValArray = new String[0];
        context.setAttributeValues("email2", userValArray);

In both the above cases we get a the below exception when we try to update 
: 

java.lang.NullPointerException
        at 
org.apache.directory.server.core.collective.CollectiveAttributesSchemaChecker.checkModify(CollectiveAttributesSchemaChecker.java:89)
        at 
org.apache.directory.server.core.collective.CollectiveAttributeInterceptor.modify(CollectiveAttributeInterceptor.java:358)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.subtree.SubentryInterceptor.modify(SubentryInterceptor.java:1104)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.schema.SchemaInterceptor.modify(SchemaInterceptor.java:1551)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.operational.OperationalAttributeInterceptor.modify(OperationalAttributeInterceptor.java:209)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.changelog.ChangeLogInterceptor.modify(ChangeLogInterceptor.java:225)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.exception.ExceptionInterceptor.modify(ExceptionInterceptor.java:367)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.authz.DefaultAuthorizationInterceptor.modify(DefaultAuthorizationInterceptor.java:273)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.authz.AciAuthorizationInterceptor.modify(AciAuthorizationInterceptor.java:565)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.referral.ReferralInterceptor.modify(ReferralInterceptor.java:403)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.authn.AuthenticationInterceptor.modify(AuthenticationInterceptor.java:336)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.modify(InterceptorChain.java:1216)
        at 
org.apache.directory.server.core.normalization.NormalizationInterceptor.modify(NormalizationInterceptor.java:146)
        at 
org.apache.directory.server.core.interceptor.InterceptorChain.modify(InterceptorChain.java:821)
        at 
org.apache.directory.server.core.DefaultOperationManager.modify(DefaultOperationManager.java:691)
        at 
org.apache.directory.server.core.DefaultCoreSession.modify(DefaultCoreSession.java:829)
        at 
org.apache.directory.server.core.DefaultCoreSession.modify(DefaultCoreSession.java:815)
        at 
org.apache.directory.server.ldap.handlers.ModifyHandler.handle(ModifyHandler.java:56)
        at 
org.apache.directory.server.ldap.handlers.ModifyHandler.handle(ModifyHandler.java:39)
        at 
org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:176)
        at 
org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:56)
        at 
org.apache.mina.handler.demux.DemuxingIoHandler.messageReceived(DemuxingIoHandler.java:232)
        at 
org.apache.directory.server.ldap.LdapProtocolHandler.messageReceived(LdapProtocolHandler.java:194)
        at 
org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:721)
        at 
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:433)
        at 
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
        at 
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:801)
        at 
org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:71)
        at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
        at 
org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.runTask(UnorderedThreadPoolExecutor.java:480)
        at 
org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.run(UnorderedThreadPoolExecutor.java:434)


Please advise us how to over come this problem, as we need to update the 
multi valued attributes with nulls.


Ramesh Nakka
Websphere Portal Consultant
Mobile#  1-248 835 9758
Office# 1-518-408-4457
rnakka@osc.state.ny.us
rameshbabu_nl@yahoo.com


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