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Published Jul. 2, 2025

Possible LDAP NullPointerExceptions

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Liferay Support

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When setting up LDAP in the portal-ext.properties, NullPointerException errors may be thrown if settings are not specified.

Resolution

  1. Update to Liferay Portal 6.0 EE SP1 or later or
  2. Declare the LDAP settings in portal-ext.properties as blank if they are unspecified: 
    ldap.base.provider.url=ldap.base.dn=

ldap.security.principal=

ldap.security.credentials=

ldap.auth.search.filter=

ldap.contact.mappings=

ldap.contact.custom.mappings=

ldap.user.default.object.classes=

ldap.user.mappings=ldap.user.custom.mappings=

ldap.group.default.object.classes=ldap.group.mappings=

ldap.import.user.search.filter=

ldap.import.group.search.filter=

ldap.users.dn=ldap.groups.dn=

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