Created a new exampleString template for JavaSpring

Author: smasset

modules/openapi-generator/src/main/resources/JavaSpring/exampleString.mustache

@@ -0,0 +1 @@
+"{{#lambdaRemoveLineBreak}}{{#lambdaEscapeDoubleQuote}}{{{example}}}{{/lambdaEscapeDoubleQuote}}{{/lambdaRemoveLineBreak}}"

modules/openapi-generator/src/main/resources/JavaSpring/methodBody.mustache

@@ -8,7 +8,7 @@ return CompletableFuture.supplyAsync(()-> {
 {{#async}}    {{/async}}            {{/jdk8}}for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
     {{/-first}}
 {{#async}}        {{/async}}{{^async}}{{#jdk8}}    {{/jdk8}}{{/async}}            if (mediaType.isCompatibleWith(MediaType.valueOf("{{{contentType}}}"))) {
-{{#async}}        {{/async}}{{^async}}{{#jdk8}}    {{/jdk8}}{{/async}}                String exampleString = "{{#lambdaRemoveLineBreak}}{{#lambdaEscapeDoubleQuote}}{{{example}}}{{/lambdaEscapeDoubleQuote}}{{/lambdaRemoveLineBreak}}";
+{{#async}}        {{/async}}{{^async}}{{#jdk8}}    {{/jdk8}}{{/async}}                String exampleString = {{>exampleString}};
 {{#async}}        {{/async}}{{^async}}{{#jdk8}}    {{/jdk8}}{{/async}}                ApiUtil.setExampleResponse(request, "{{{contentType}}}", exampleString);
 {{#async}}        {{/async}}{{^async}}{{#jdk8}}    {{/jdk8}}{{/async}}                break;
 {{#async}}        {{/async}}{{^async}}{{#jdk8}}    {{/jdk8}}{{/async}}            }
@@ -37,7 +37,7 @@ Mono<Void> result = Mono.empty();
         for (MediaType mediaType : exchange.getRequest().getHeaders().getAccept()) {
         {{/-first}}
             if (mediaType.isCompatibleWith(MediaType.valueOf("{{{contentType}}}"))) {
-                String exampleString = "{{#lambdaRemoveLineBreak}}{{#lambdaEscapeDoubleQuote}}{{{example}}}{{/lambdaEscapeDoubleQuote}}{{/lambdaRemoveLineBreak}}";
+                String exampleString = {{>exampleString}};
                 result = ApiUtil.getExampleResponse(exchange, exampleString);
                 break;
             }