From 1c618bf947296c2c37ab63b57243c7d0dfdf09bb Mon Sep 17 00:00:00 2001
From: Alexey Kudravtsev <cdr@intellij.com>
Date: Mon, 6 Oct 2014 16:46:21 +0400
Subject: [PATCH] installers fixed: do not instantiate ProgressWindow in
 headless environment

---
 .../com/intellij/openapi/application/impl/ApplicationImpl.java   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/platform-impl/src/com/intellij/openapi/application/impl/ApplicationImpl.java b/platform/platform-impl/src/com/intellij/openapi/application/impl/ApplicationImpl.java
index 67f868deda91..cf87cd8c24d6 100644
--- a/platform/platform-impl/src/com/intellij/openapi/application/impl/ApplicationImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/application/impl/ApplicationImpl.java
@@ -594,6 +594,7 @@ public class ApplicationImpl extends PlatformComponentManagerImpl implements App
     boolean writeAccessAllowed = isInsideWriteActionEDTOnly();
     if (writeAccessAllowed // Disallow running process in separate thread from under write action.
                            // The thread will deadlock trying to get read action otherwise.
+        || isHeadlessEnvironment() && !isUnitTestMode()
       ) {
       LOG.debug("Starting process with progress from within write action makes no sense");
       try {