Only register the Swagger annotation imports for the corresponding annotationLibrary

Author: shybovycha

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java

@@ -595,9 +595,13 @@ public void processOpts() {
         }
 
         // imports for pojos
-        importMapping.put("ApiModelProperty", "io.swagger.annotations.ApiModelProperty");
-        importMapping.put("ApiModel", "io.swagger.annotations.ApiModel");
-        importMapping.put("Schema", "io.swagger.v3.oas.annotations.media.Schema");
+        if (AnnotationLibrary.SWAGGER1.equals(getAnnotationLibrary())) {
+            importMapping.put("ApiModelProperty", "io.swagger.annotations.ApiModelProperty");
+            importMapping.put("ApiModel", "io.swagger.annotations.ApiModel");
+        } else if (AnnotationLibrary.SWAGGER2.equals(getAnnotationLibrary())) {
+            importMapping.put("Schema", "io.swagger.v3.oas.annotations.media.Schema");
+        }
+
         importMapping.put("BigDecimal", "java.math.BigDecimal");
         importMapping.put("JsonDeserialize", "com.fasterxml.jackson.databind.annotation.JsonDeserialize");
         importMapping.put("JsonProperty", "com.fasterxml.jackson.annotation.JsonProperty");