Bug - preserve stacktrace (#5)

* Preserve stacktrace

* Bump version

build.gradle

@@ -7,7 +7,7 @@ plugins {
 }
 
 group = 'uk.gov.hmcts.reform.auth'
-version = '2.1.2'
+version = '2.1.3'
 
 sourceCompatibility = 1.8
 targetCompatibility = 1.8

src/main/java/uk/gov/hmcts/reform/auth/checker/core/exceptions/BearerTokenInvalidException.java

@@ -1,4 +1,7 @@
 package uk.gov.hmcts.reform.auth.checker.core.exceptions;
 
 public class BearerTokenInvalidException extends AuthCheckerException {
+    public BearerTokenInvalidException(Throwable cause) {
+        super(cause);
+    }
 }

src/main/java/uk/gov/hmcts/reform/auth/checker/core/service/ServiceRequestAuthorizer.java

@@ -50,9 +50,9 @@ private Service getTokenDetails(String bearerToken) {
         try {
             return serviceResolver.getTokenDetails(bearerToken);
         } catch (ServiceTokenInvalidException e) {
-            throw new BearerTokenInvalidException();
+            throw new BearerTokenInvalidException(e);
         } catch (ServiceTokenParsingException e) {
-            throw new AuthCheckerException("Error parsing JWT token");
+            throw new AuthCheckerException("Error parsing JWT token", e);
         }
     }
 

src/main/java/uk/gov/hmcts/reform/auth/checker/core/user/UserRequestAuthorizer.java

@@ -53,9 +53,9 @@ private T getTokenDetails(String bearerToken) {
         try {
             return userResolver.getTokenDetails(bearerToken);
         } catch (UserTokenInvalidException e) {
-            throw new BearerTokenInvalidException();
+            throw new BearerTokenInvalidException(e);
         } catch (UserTokenParsingException e) {
-            throw new AuthCheckerException("Error parsing JWT token");
+            throw new AuthCheckerException("Error parsing JWT token", e);
         }
     }