spring-boot run issue. Won't start up.

[akash-potdar7]

I'am facing this issue when I try to fire up the spring-boot application.
Please help me resolve this. Request Mapping aren't happening as expected, we can see that in the code.
Here'e the link to my code.
Note: I'm using proxy to redirect my requests. Please refer proxy.conf.json
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:: Spring Boot :: (v1.5.8.RELEASE)

2017-11-09 16:14:39.326 INFO 10464 --- [ main] c.j.a.booksApp.app.BooksAppApplication : Starting BooksAppApplication on BLR019 with PID 10464 (D:\AkashPotdar\Akash\CodeBase\booksAppMaven\target\classes started by Akash.Potdar in D:\AkashPotdar\Akash\CodeBase\booksAppMaven)
2017-11-09 16:14:39.331 INFO 10464 --- [ main] c.j.a.booksApp.app.BooksAppApplication : No active profile set, falling back to default profiles: default
2017-11-09 16:14:39.472 INFO 10464 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6a79c292: startup date [Thu Nov 09 16:14:39 IST 2017]; root of context hierarchy
2017-11-09 16:14:42.461 INFO 10464 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 9999 (http)
2017-11-09 16:14:42.478 INFO 10464 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2017-11-09 16:14:42.479 INFO 10464 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.23
2017-11-09 16:14:42.628 INFO 10464 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2017-11-09 16:14:42.628 INFO 10464 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 3162 ms
2017-11-09 16:14:42.804 INFO 10464 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2017-11-09 16:14:42.810 INFO 10464 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/]
2017-11-09 16:14:42.811 INFO 10464 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/]
2017-11-09 16:14:42.811 INFO 10464 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/]
2017-11-09 16:14:42.811 INFO 10464 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/]
2017-11-09 16:14:44.475 INFO 10464 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2017-11-09 16:14:44.513 INFO 10464 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2017-11-09 16:14:44.699 INFO 10464 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.0.12.Final}
2017-11-09 16:14:44.701 INFO 10464 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2017-11-09 16:14:44.704 INFO 10464 --- [ main] org.hibernate.cfg.Environment : HHH000021: Bytecode provider name : javassist
2017-11-09 16:14:44.808 INFO 10464 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2017-11-09 16:14:45.041 INFO 10464 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.HSQLDialect
2017-11-09 16:14:45.692 INFO 10464 --- [ main] org.hibernate.tool.hbm2ddl.SchemaExport : HHH000227: Running hbm2ddl schema export
2017-11-09 16:14:45.729 INFO 10464 --- [ main] org.hibernate.tool.hbm2ddl.SchemaExport : HHH000230: Schema export complete
2017-11-09 16:14:45.795 INFO 10464 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2017-11-09 16:14:46.539 INFO 10464 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6a79c292: startup date [Thu Nov 09 16:14:39 IST 2017]; root of context hierarchy
2017-11-09 16:14:46.715 INFO 10464 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2017-11-09 16:14:46.717 INFO 10464 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2017-11-09 16:14:46.784 INFO 10464 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-11-09 16:14:46.784 INFO 10464 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-11-09 16:14:46.865 INFO 10464 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-11-09 16:14:47.349 INFO 10464 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2017-11-09 16:14:47.458 INFO 10464 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 9999 (http)
2017-11-09 16:14:47.468 INFO 10464 --- [ main] c.j.a.booksApp.app.BooksAppApplication : Started BooksAppApplication in 8.883 seconds (JVM running for 9.661)
2017-11-09 16:15:16.292 INFO 10464 --- [nio-9999-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2017-11-09 16:15:16.292 INFO 10464 --- [nio-9999-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2017-11-09 16:15:16.357 INFO 10464 --- [nio-9999-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 64 ms
2017-11-09 16:16:17.234 INFO 10464 --- [nio-9999-exec-3] o.apache.coyote.http11.Http11Processor : Error parsing HTTP request header
Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.

java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens
at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:426) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:687) ~[tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) [tomcat-embed-core-8.5.23.jar:8.5.23]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.23.jar:8.5.23]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_144]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_144]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.23.jar:8.5.23]
at java.lang.Thread.run(Unknown Source) [na:1.8.0_144]