Fixing Concurrency Issues with TypeMapper

test case demonstrating a thread-unsafe operation of IndexerMappingServiceImpl.getIndexMappingFromRecordSchema(..) and the fix for that

Conflicts:

indexer-core/src/main/java/org/opengroup/osdu/indexer/service/IndexerMappingServiceImpl.java

indexer-core/src/test/java/org/opengroup/osdu/indexer/service/IndexerMappingServiceTest.java

@@ -29,6 +29,9 @@ import static org.mockito.MockitoAnnotations.initMocks;
 import com.google.gson.Gson;
 
 import java.io.IOException;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
 
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonElement;
@@ -252,8 +255,8 @@ public class IndexerMappingServiceTest {
             String dp1WksAuthorityMappingString = new Gson().toJson(((Map<String, Object>) dp1wksMapping.get("properties")).get("authority"));
             System.out.println(String.format("Kind: %s \nResult Authority Json: %s\nExpected Authority Json: %s",
                     kind, dp1WksAuthorityMappingString, "{\"type\":\"constant_keyword\",\"value\":\"dp1\"}"));
-            Assert.assertTrue("Authority Check Failed for " + kind, areJsonStringsEqual("{\"type\":\"constant_keyword\",\"value\":\"dp1\"}",dp1WksAuthorityMappingString));
-            Assert.assertTrue("Full mapping Check Failed for " + kind, areJsonStringsEqual(dp1MappingJsonExpected,(new Gson().toJson(dp1wksMapping))));
+            Assert.assertTrue("Authority Check Failed for " + kind, areJsonStringsEqual("{\"type\":\"constant_keyword\",\"value\":\"dp1\"}", dp1WksAuthorityMappingString));
+            Assert.assertTrue("Full mapping Check Failed for " + kind, areJsonStringsEqual(dp1MappingJsonExpected, (new Gson().toJson(dp1wksMapping))));
 
 
             //get & verify authority for first kind (osdu:wks..)