com.alibaba.dubbo.governance.web.governance.module.screen.Providers#getServiceAppMap 
at line 133 ， should be providers.size > 0 or just delete this comparison cause the next for will skip if proviers.size == 0
}
        }
        if (provider.isDynamic()) {
            String address = provider.getAddress();
            List<Override> overrides = overrideService.findByServiceAndAddress(provider.getService(), provider.getAddress());
            OverrideUtils.setProviderOverrides(provider, overrides);
            Override override = provider.getOverride();
            if (override != null) {
                if (newMap.size() > 0) {
                    override.setParams(StringUtils.toQueryString(newMap));
                    override.setEnabled(true);
                    override.setOperator(operator);
                    override.setOperatorAddress(operatorAddress);
                    overrideService.updateOverride(override);
                } else {
                    overrideService.deleteOverride(override.getId());
                }
            } else {
                override = new Override();
                override.setService(service);
                override.setAddress(address);
                override.setParams(StringUtils.toQueryString(newMap));
                override.setEnabled(true);
                override.setOperator(operator);
                override.setOperatorAddress(operatorAddress);
                overrideService.saveOverride(override);
            }
        } else {
            provider.setParameters(parameters);
            providerService.updateProvider(provider);