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Error while connecting to the remote service. null
java.lang.NullPointerException: null	at org.ow2.authzforce.core.pdp.impl.func.ImmutableFunctionRegistry.getFunction(ImmutableFunctionRegistry.java:97)	at org.ow2.authzforce.core.pdp.impl.expression.ExpressionFactoryImpl.getFunction(ExpressionFactoryImpl.java:302)	at org.ow2.authzforce.core.pdp.impl.expression.ApplyExpression.getInstance(ApplyExpression.java:145)	at org.ow2.authzforce.core.pdp.impl.expression.ExpressionFactoryImpl.getInstance(ExpressionFactoryImpl.java:317)	at org.ow2.authzforce.core.pdp.impl.expression.ApplyExpression.getInstance(ApplyExpression.java:109)	at org.ow2.authzforce.core.pdp.impl.expression.ExpressionFactoryImpl.getInstance(ExpressionFactoryImpl.java:317)	at org.ow2.authzforce.core.pdp.impl.rule.ConditionEvaluator.(ConditionEvaluator.java:76)	at org.ow2.authzforce.core.pdp.impl.rule.RuleEvaluator.(RuleEvaluator.java:385)	at org.ow2.authzforce.core.pdp.impl.policy.PolicyEvaluators.getInstance(PolicyEvaluators.java:1811)	at org.ow2.authzforce.core.pdp.impl.policy.PolicyEvaluators$StaticPolicySetElementEvaluatorFactory.getChildPolicyEvaluator(PolicyEvaluators.java:2095)	at org.ow2.authzforce.core.pdp.impl.policy.PolicyEvaluators$StaticPolicySetElementEvaluatorFactory.getChildPolicyEvaluator(PolicyEvaluators.java:2072)	at org.ow2.authzforce.core.pdp.impl.policy.PolicyEvaluators.getInstanceGeneric(PolicyEvaluators.java:2402)	at org.ow2.authzforce.core.pdp.impl.policy.PolicyEvaluators.getInstanceStatic(PolicyEvaluators.java:2524)	at org.ow2.authzforce.pap.dao.flatfile.FlatFileDAORefPolicyProviderModule$PolicyEvaluatorSupplier.get(FlatFileDAORefPolicyProviderModule.java:239)	at org.ow2.authzforce.pap.dao.flatfile.FlatFileDAORefPolicyProviderModule$PolicyEvaluatorSupplier.access$600(FlatFileDAORefPolicyProviderModule.java:188)	at org.ow2.authzforce.pap.dao.flatfile.FlatFileDAORefPolicyProviderModule.get(FlatFileDAORefPolicyProviderModule.java:374)	at org.ow2.authzforce.core.pdp.api.policy.BaseStaticRefPolicyProvider.get(BaseStaticRefPolicyProvider.java:131)	at org.ow2.authzforce.core.pdp.impl.policy.CoreRefBasedRootPolicyProviderModule.(CoreRefBasedRootPolicyProviderModule.java:135)	at org.ow2.authzforce.core.pdp.impl.policy.CoreRefBasedRootPolicyProviderModule$Factory.getInstance(CoreRefBasedRootPolicyProviderModule.java:77)	at org.ow2.authzforce.core.pdp.impl.policy.CoreRefBasedRootPolicyProviderModule$Factory.getInstance(CoreRefBasedRootPolicyProviderModule.java:57)	at org.ow2.authzforce.core.pdp.impl.policy.RootPolicyEvaluators$Base.(RootPolicyEvaluators.java:171)	at org.ow2.authzforce.core.pdp.impl.PDPImpl.(PDPImpl.java:372)	at org.ow2.authzforce.core.pdp.impl.PdpConfigurationParser.getPDP(PdpConfigurationParser.java:458)	at org.ow2.authzforce.pap.dao.flatfile.FlatFileBasedDomainsDAO$FileBasedDomainDAOImpl.reloadPDP(FlatFileBasedDomainsDAO.java:878)	at org.ow2.authzforce.pap.dao.flatfile.FlatFileBasedDomainsDAO$FileBasedDomainDAOImpl.setOtherPdpProperties(FlatFileBasedDomainsDAO.java:1505)	at org.ow2.authzforce.rest.service.jaxrs.DomainResourceImpl.updateOtherPdpProperties(DomainResourceImpl.java:604)	at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:181)	at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:97)	at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:200)	at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:271)	at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:271)	at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:271)	at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:99)	at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:59)	at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:96)	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)	at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)	at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:251)	at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:234)	at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:208)	at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:160)	at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:171)	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:293)	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPut(AbstractHTTPServlet.java:229)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:649)	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:268)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.ow2.authzforce.webapp.ExceptionFilter.doFilter(ExceptionFilter.java:87)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	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:501)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:745)