No HttpServletRequest available exception when using Vault with embedded Cloud Config Server

Hi,

I am getting a similar error as reported in issue #1393. Moving to 2.1.3.RELEASE doesn't seem to have resolved the bug completely - or maybe i'm missing something else. Please advice. Below is the stack error stack i get.

Caused by: java.lang.IllegalStateException: No HttpServletRequest available
	at org.springframework.cloud.config.server.environment.HttpRequestConfigTokenProvider.getToken(HttpRequestConfigTokenProvider.java:41) ~[spring-cloud-config-server-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.cloud.config.server.environment.VaultEnvironmentRepository.getToken(VaultEnvironmentRepository.java:218) ~[spring-cloud-config-server-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.cloud.config.server.environment.VaultEnvironmentRepository.read(VaultEnvironmentRepository.java:209) ~[spring-cloud-config-server-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.cloud.config.server.environment.VaultEnvironmentRepository.findOne(VaultEnvironmentRepository.java:147) ~[spring-cloud-config-server-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.cloud.config.server.environment.CompositeEnvironmentRepository.findOne(CompositeEnvironmentRepository.java:52) ~[spring-cloud-config-server-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.cloud.config.server.environment.EnvironmentRepositoryPropertySourceLocator.locate(EnvironmentRepositoryPropertySourceLocator.java:55) ~[spring-cloud-config-server-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:94) ~[spring-cloud-context-2.0.2.RELEASE.jar:2.0.2.RELEASE]
	at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:628) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:364) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

I've attached the sample project which replicated this error
vault-config-server.zip

thanks!

Start by reproducing the failure with the attached vault-config-server.zip sample and read the stack-trace entry points HttpRequestConfigTokenProvider.getToken and VaultEnvironmentRepository.read/findOne. Trace why startup reaches these methods without an HttpServletRequest. Done means the embedded Cloud Config Server starts and uses Vault without the IllegalStateException.