fix findJsonValueType

Author: frantuma

modules/swagger-core/src/main/java/io/swagger/v3/core/jackson/ModelResolver.java

@@ -1116,17 +1116,21 @@ protected Type findJsonValueType(final BeanDescription beanDesc) {
 
  // use recursion to check for method findJsonValueAccessor existence (Jackson 2.9+)
  // if not found use previous deprecated method which could lead to inaccurate result
- AnnotatedMember jsonValueMember = invokeMethod(beanDesc, "findJsonValueAccessor");
- if (jsonValueMember != null) {
- return jsonValueMember.getType();
- } else {
+ try {
+ AnnotatedMember jsonValueMember = invokeMethod(beanDesc, "findJsonValueAccessor");
+ if (jsonValueMember != null) {
+ return jsonValueMember.getType();
+ }
+ } catch (Exception e) {
  LOGGER.warn("jackson BeanDescription.findJsonValueAccessor not found, this could lead to inaccurate result, please update jackson to 2.9+");
  }
 
- jsonValueMember = invokeMethod(beanDesc, "findJsonValueMethod");
- if (jsonValueMember != null) {
- return jsonValueMember.getType();
- } else {
+ try {
+ AnnotatedMember jsonValueMember = invokeMethod(beanDesc, "findJsonValueMethod");
+ if (jsonValueMember != null) {
+ return jsonValueMember.getType();
+ }
+ } catch (Exception e) {
  LOGGER.error("Neither 'findJsonValueMethod' nor 'findJsonValueAccessor' found in jackson BeanDescription. Please verify your Jackson version.");
  }
  return null;
@@ -3057,13 +3061,9 @@ protected boolean isNumberSchema(Schema schema){
  return "number".equals(schema.getType()) || (schema.getTypes() != null && schema.getTypes().contains("number")) || "integer".equals(schema.getType()) || (schema.getTypes() != null && schema.getTypes().contains("integer"));
  }
 
- private AnnotatedMember invokeMethod(final BeanDescription beanDesc, String methodName) {
- try {
- Method m = BeanDescription.class.getMethod(methodName);
- return (AnnotatedMember) m.invoke(beanDesc);
- } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
- return null;
- }
+ private AnnotatedMember invokeMethod(final BeanDescription beanDesc, String methodName) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException{
+ Method m = BeanDescription.class.getMethod(methodName);
+ return (AnnotatedMember) m.invoke(beanDesc);
  }
 
  protected Schema buildRefSchemaIfObject(Schema schema, ModelConverterContext context) {