From 375e34fe1283f71e661bd6a3be441fe02b1445c6 Mon Sep 17 00:00:00 2001
From: Simon Marti <simon@marti.email>
Date: Wed, 22 Mar 2017 17:49:58 +0100
Subject: [PATCH] Fix selective generation in successive Maven plugin
 executions (#5152)

Options passed as system properties are properly reset when
disabled in the execution configuration.

Fixes #5151
---
 .../main/java/io/swagger/codegen/plugin/CodeGenMojo.java   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/modules/swagger-codegen-maven-plugin/src/main/java/io/swagger/codegen/plugin/CodeGenMojo.java b/modules/swagger-codegen-maven-plugin/src/main/java/io/swagger/codegen/plugin/CodeGenMojo.java
index 15d3b4a86da4..b3df005872b0 100644
--- a/modules/swagger-codegen-maven-plugin/src/main/java/io/swagger/codegen/plugin/CodeGenMojo.java
+++ b/modules/swagger-codegen-maven-plugin/src/main/java/io/swagger/codegen/plugin/CodeGenMojo.java
@@ -333,13 +333,20 @@ public class CodeGenMojo extends AbstractMojo {
         // Set generation options
         if (null != generateApis && generateApis) {
             System.setProperty("apis", "");
+        } else {
+            System.clearProperty("apis");
         }
+
         if (null != generateModels && generateModels) {
             System.setProperty("models", modelsToGenerate);
+        } else {
+            System.clearProperty("models");
         }
 
         if (null != generateSupportingFiles && generateSupportingFiles) {
             System.setProperty("supportingFiles", supportingFilesToGenerate);
+        } else {
+            System.clearProperty("supportingFiles");
         }
         
         System.setProperty("modelTests", generateModelTests.toString());