Not able to import XACML policy in wso2is-5.1.0 - authorization

Question

I am trying to upload below given XACML policy in wso2is-5.1.0. I am getting "Policy uploading failed. Invalid Entitlement Policy. Policy is not valid according to XACML schema" error message. I am not able to figure out, what is the problem with my XACML. On console, i found [2016-06-20 18:50:06,142] ERROR {org.wso2.carbon.identity.entitlement.EntitlementUtil} - Invalid Namespace in policy message.
<Policy PolicyId="BankUseCasePolicy" RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:permit-overrides" xmlns="urn:oasis:names:tc:xacml:3.0:policy:schema:os">
<Rule Effect="Permit" RuleId="Rule_On_Withdrew">
<Condition>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:and">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">BankService/withdrew</AttributeValue>
<ResourceAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id" DataType="http://www.w3.org/2001/XMLSchema#string"/>
</Apply>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">manager</AttributeValue>
<SubjectAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:subject:subject-id" DataType="http://www.w3.org/2001/XMLSchema#string"/>
</Apply>
</Apply>
</Condition>
</Rule>
<Rule Effect="Permit" RuleId="Rule_On_Deposit">
<Condition>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:and">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">BankService/deposit</AttributeValue>
<ResourceAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:resource:resource-id" DataType="http://www.w3.org/2001/XMLSchema#string"/>
</Apply>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:or">
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">manager</AttributeValue>
<SubjectAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:subject:subject-id" DataType="http://www.w3.org/2001/XMLSchema#string"/>
</Apply>
<Apply FunctionId="urn:oasis:names:tc:xacml:1.0:function:string-is-in">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">executive</AttributeValue>
<SubjectAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:subject:subject-id" DataType="http://www.w3.org/2001/XMLSchema#string"/>
</Apply>
</Apply>
</Apply>
</Condition>
</Rule>
<Rule Effect="Deny" RuleId="Deny_Rule"/>
<Target>
<Environments>
<Environment>
<EnvironmentMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
<AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">wso2.org</AttributeValue>
<EnvironmentAttributeDesignator AttributeId="urn:oasis:names:tc:xacml:1.0:environment:environment-id" DataType="http://www.w3.org/2001/XMLSchema#string"/>
</EnvironmentMatch>
</Environment>
</Environments>
</Target>
</Policy>

Answer 1

Seems like you are failing from the below point [1], where your schema is null. Your schema is not mapped properly.
Please double check your policy, whether its compatiple with XACML 3.0
[1] https://github.com/wso2-attic/carbon-identity/blob/master/components/entitlement/org.wso2.carbon.identity.entitlement/src/main/java/org/wso2/carbon/identity/entitlement/EntitlementUtil.java#L237