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Question

 HNB Pega (NIPUNPETER)
Huntington Bancshares Inc

Huntington Bancshares Inc
US
NIPUNPETER Member since 2010 15 posts
Huntington Bancshares Inc
Posted: Apr 24, 2016
Last activity: May 12, 2016
Posted: 24 Apr 2016 17:28 EDT
Last activity: 12 May 2016 15:05 EDT
Closed
Solved

NullPointerException while retrieving LDAP attribute

Sporadically, getting the below error while retrieving LDAP attribute.


The Authtentication Service rule contains the Attribute mappings. The first attribute specified in the rule is retrieved successfully.

However, getting NullPointerException while retrieving the second LDAP attribute specified in the Authtentication Service rule's "Mapping" tab.


Caused by: java.lang.NullPointerException

       at com.sun.jndi.ldap.LdapCtx.getSchemaEntry(LdapCtx.java:1663)

       at com.sun.jndi.ldap.LdapCtx.getSchemaTree(LdapCtx.java:1572)

       at com.sun.jndi.ldap.LdapCtx.c_getSchema(LdapCtx.java:1519)

       at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getSchema(ComponentDirContext.java:415)

       at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getSchema(PartialCompositeDirContext.java:402)

       at com.sun.jndi.ldap.LdapAttribute.getAttributeDefinition(LdapAttribute.java:191)

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Pega Customer Service
System Administration

Accepted Solution

Posted: 8 years ago
Posted: 12 May 2016 15:05 EDT
HNB Pega (NIPUNPETER)
Huntington Bancshares Inc

Huntington Bancshares Inc
US

we were looping through for every LDAP attribute.


The LDAP context implementation. Implementation (library) is not thread-safe. Caller must sync as per JNDI spec.

See: http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/com/sun/jndi/ldap/LdapCtx.java


Changed the implementation to retrieve all LDAP attributes using getAll()

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Posted: 8 years ago
Posted: 24 Apr 2016 20:53 EDT
Veera Gangababu Gollapalli (Gangababu)
PEGA
Principal Technical Solutions Engineer
PEG
IN

Which version of PRPC you are in? You mean to say first time you were able to login successfully and next time onwards you were facing the issue. Right?

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Posted: 8 years ago
Posted: 24 Apr 2016 21:03 EDT
HNB Pega (NIPUNPETER)
Huntington Bancshares Inc

Huntington Bancshares Inc
US

Hi Gangababu -

Using PRPC 6.3 SP1.

The LDAP connection is always successful. But, sporadically, while retrieving the second LDAP attribute specified in the Authtentication Service rule, getting NullPointerException with those errors in PegaRULES.log

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Posted: 8 years ago
Updated: 8 years ago
Posted: 25 Apr 2016 13:44 EDT
Updated: 26 Apr 2016 3:31 EDT
HNB Pega (NIPUNPETER)
Huntington Bancshares Inc

Huntington Bancshares Inc
US

2016-04-22 11:00:39,834 ERROR  : H673FAC9A037B1891DA61B638F1F92D9D : http-bio-8180-exec-107 com.pega.pegarules.session.internal.engineinterface.service.HttpAPI pdlbeaapp1.<removed company name>.com|<removed IP address>: com.pega.pegarules.pub.PRRuntimeError

  1. com.pega.pegarules.pub.PRRuntimeError: PRRuntimeError

       at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:683)

       at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:584)

       at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:2797)

       at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:394)

       at sun.reflect.GeneratedMethodAccessor82.invoke(Unknown Source)

       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

       at java.lang.reflect.Method.invoke(Method.java:597)

       at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1043)

       at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:765)

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2016-04-22 11:00:39,834 ERROR  : H673FAC9A037B1891DA61B638F1F92D9D : http-bio-8180-exec-107 com.pega.pegarules.session.internal.engineinterface.service.HttpAPI pdlbeaapp1.<removed company name>.com|<removed IP address>: com.pega.pegarules.pub.PRRuntimeError

  1. com.pega.pegarules.pub.PRRuntimeError: PRRuntimeError

       at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:683)

       at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:584)

       at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:2797)

       at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:394)

       at sun.reflect.GeneratedMethodAccessor82.invoke(Unknown Source)

       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

       at java.lang.reflect.Method.invoke(Method.java:597)

       at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1043)

       at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:765)

       at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequest(EngineAPI.java:328)

       at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:720)

       at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:312)

       at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:263)

       at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:240)

       at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:277)

       at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:222)

       at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:383)

       at com.pega.pegarules.web.impl.WebStandardImpl.doPost(WebStandardImpl.java:271)

       at sun.reflect.GeneratedMethodAccessor76.invoke(Unknown Source)

       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

       at java.lang.reflect.Method.invoke(Method.java:597)

       at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:349)

       at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:390)

       at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:439)

       at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doPost(WebStandardBoot.java:118)

       at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doGet(WebStandardBoot.java:89)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)

       at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

       at org.apache.catalina.valves.CometConnectionManagerValve.invoke(CometConnectionManagerValve.java:184)

       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)

       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

       at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)

       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)

       at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)

       at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)

       at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

       at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)

       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)

       at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

       at java.lang.Thread.run(Thread.java:662)

Caused by: java.lang.NullPointerException

       at com.sun.jndi.ldap.LdapCtx.getSchemaEntry(LdapCtx.java:1663)

       at com.sun.jndi.ldap.LdapCtx.getSchemaTree(LdapCtx.java:1572)

       at com.sun.jndi.ldap.LdapCtx.c_getSchema(LdapCtx.java:1519)

       at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getSchema(ComponentDirContext.java:415)

       at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getSchema(PartialCompositeDirContext.java:402)

       at com.sun.jndi.ldap.LdapAttribute.getAttributeDefinition(LdapAttribute.java:191)

       at com.pegarules.generated.activity.ra_action_webstandardldap1auth_bae78242426463ec929a2d26cf606d77.step16_circum0(ra_action_webstandardldap1auth_bae78242426463ec929a2d26cf606d77.java:1942)

       at com.pegarules.generated.activity.ra_action_webstandardldap1auth_bae78242426463ec929a2d26cf606d77.perform(ra_action_webstandardldap1auth_bae78242426463ec929a2d26cf606d77.java:354)

       at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3040)

       at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:617)

       ... 45 more


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Posted: 8 years ago
Posted: 12 May 2016 9:43 EDT
Aruna Pyla (pylaa) Principal Technical Solutions Engineer
Pegasystems Inc.
IN

I assume you are using replicated ldap environment to read the data from ldap. Across all the servers ldap schema might be different(may be one of the attribute which is failing to load is not defined in the schema). When the request is hitting the ldap through the load balancer some of them are giving the successful result and one of them is failing to serve the request due to inconsistent schema across the ldap environment. Please validate the schema in all the ldap servers and let me know if you find any differences.

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Accepted Solution

Posted: 8 years ago
Posted: 12 May 2016 15:05 EDT
HNB Pega (NIPUNPETER)
Huntington Bancshares Inc

Huntington Bancshares Inc
US

we were looping through for every LDAP attribute.


The LDAP context implementation. Implementation (library) is not thread-safe. Caller must sync as per JNDI spec.

See: http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/com/sun/jndi/ldap/LdapCtx.java


Changed the implementation to retrieve all LDAP attributes using getAll()

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