Upgrading version of handlebar in preparation for JDK17
diff --git a/pom.xml b/pom.xml
index 224b10e..ff32ecd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -141,6 +141,8 @@
     <swagger.plugin.version>2.1.12</swagger.plugin.version>
     <swagger.codegen.plugin.version>3.0.31</swagger.codegen.plugin.version>
     <io.swagger.version>2.1.10</io.swagger.version>
+    <!-- This is a transitive dependency of swagger.codegen plugin -->
+    <handlebar.version>4.3.0</handlebar.version>
 
 
     <enunciate.docsDir/>
@@ -1071,6 +1073,13 @@
               <groupId>io.swagger.codegen.v3</groupId>
               <artifactId>swagger-codegen-maven-plugin</artifactId>
               <version>${swagger.codegen.plugin.version}</version>
+              <dependencies>
+                <dependency>
+                  <groupId>com.github.jknack</groupId>
+                  <artifactId>handlebars</artifactId>
+                  <version>${handlebar.version}</version>
+                </dependency>
+              </dependencies>
               <executions>
                 <execution>
                   <phase>compile</phase>