Merge pull request #22 from dchenbec/fix-region-case-mismatch-4.x

Fix region case mismatch for 4.x

Author: bhouse99

pom.xml

@@ -141,25 +141,6 @@
  <autoReleaseAfterClose>false</autoReleaseAfterClose>
  </configuration>
  </plugin>
- <plugin>
- <groupId>org.codehaus.mojo</groupId>
- <artifactId>license-maven-plugin</artifactId>
- <version>2.0.0</version>
- <configuration>
- <copyrightOwners>Amazon.com, Inc. or its affiliates. All Rights Reserved.</copyrightOwners>
- <licenseName>apache_v2</licenseName>
- <roots>src</roots>
- </configuration>
- <executions>
- <execution>
- <id>first</id>
- <goals>
- <goal>update-file-header</goal>
- </goals>
- <phase>process-sources</phase>
- </execution>
- </executions>
- </plugin>
  <plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-enforcer-plugin</artifactId>

src/main/java/software/aws/mcs/auth/SigV4AuthProvider.java

@@ -156,10 +156,9 @@ public SigV4AuthProvider(@NotNull AwsCredentialsProvider credentialsProvider, fi
  if (region == null) {
  DefaultAwsRegionProviderChain chain = new DefaultAwsRegionProviderChain();
  Region defaultRegion = chain.getRegion();
- this.signingRegion = defaultRegion.toString();
-
+ this.signingRegion = defaultRegion.toString().toLowerCase();
  } else {
- this.signingRegion = region;
+ this.signingRegion = region.toLowerCase();
  }
 
  if (this.signingRegion == null) {