spring-boot - PCF - タイプ [java.util.LinkedHashMap ] からタイプ [java.lang.String]に変換できるコンバーターが見つかりません

Question

Spring Boot アプリケーションは、ローカルで実行すると正常に動作しますが、デプロイされている場合、PCF以下の例外が発生します。

org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.util.LinkedHashMap<?, ?>] to type [java.lang.String]
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:324)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at org.springframework.cloud.netflix.archaius.ConfigurableEnvironmentConfiguration.getProperty(ConfigurableEnvironmentConfiguration.java:61)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at com.fdc.ucom.fdcgatewaymockutil.endpoint.ConfigurationController.getProperties(ConfigurationController.java:35)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at com.fdc.ucom.fdcgatewaymockutil.endpoint.ConfigurationController.lambda$getConfig$1(ConfigurationController.java:58)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at java.util.Iterator.forEachRemaining(Iterator.java:116)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at org.apache.commons.configuration.AbstractConfiguration.getString(AbstractConfiguration.java:1038)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at org.apache.commons.configuration.AbstractConfiguration.getString(AbstractConfiguration.java:1021)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at java.lang.reflect.Method.invoke(Method.java:498)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
2018-01-04T09:47:39.232-06:00 [APP/PROC/WEB/0] [OUT] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)