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java.lang.NullPointerException: 	at org.identityconnectors.ldap.LdapConnection.detectServerType(LdapConnection.java:318)	at org.identityconnectors.ldap.LdapConnection.getServerType(LdapConnection.java:310)	at org.identityconnectors.ldap.schema.LdapSchemaBuilder.buildSchema(LdapSchemaBuilder.java:87)	at org.identityconnectors.ldap.schema.LdapSchemaBuilder.getSchema(LdapSchemaBuilder.java:62)	at org.identityconnectors.ldap.schema.LdapSchemaMapping.schema(LdapSchemaMapping.java:107)	at org.identityconnectors.ldap.search.LdapSearch.getAttributesReturnedByDefault(LdapSearch.java:84)	at org.identityconnectors.ldap.search.LdapSearch.getAttributesToGet(LdapSearch.java:344)	at org.identityconnectors.ldap.search.LdapSearch.execute(LdapSearch.java:120)	at org.identityconnectors.ldap.LdapConnector.executeQuery(LdapConnector.java:109)	at org.identityconnectors.ldap.LdapConnector.executeQuery(LdapConnector.java:57)	at org.identityconnectors.framework.impl.api.local.operations.SearchImpl.rawSearch(SearchImpl.java:105)	at org.identityconnectors.framework.impl.api.local.operations.SearchImpl.search(SearchImpl.java:82)	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.identityconnectors.framework.impl.api.local.operations.ConnectorAPIOperationRunnerProxy.invoke(ConnectorAPIOperationRunnerProxy.java:93)	at $Proxy7.search(Unknown Source)	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.identityconnectors.framework.impl.api.local.operations.ThreadClassLoaderManagerProxy.invoke(ThreadClassLoaderManagerProxy.java:107)	at $Proxy7.search(Unknown Source)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.identityconnectors.framework.impl.api.BufferedResultsProxy$BufferedResultsHandler.run(BufferedResultsProxy.java:162)