From c7843aa9c76f37b521a562565945a55373563c34 Mon Sep 17 00:00:00 2001
From: Ilya Matveev <ilya.matveev@jetbrains.com>
Date: Wed, 9 Aug 2017 11:43:43 +0700
Subject: [PATCH] dependencies: Detect unexpected stream end while downloading

---
 tools/helpers/src/main/kotlin/DependencyDownloader.kt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/helpers/src/main/kotlin/DependencyDownloader.kt b/tools/helpers/src/main/kotlin/DependencyDownloader.kt
index 0a30d32733c..c1c93ea5ca3 100644
--- a/tools/helpers/src/main/kotlin/DependencyDownloader.kt
+++ b/tools/helpers/src/main/kotlin/DependencyDownloader.kt
@@ -163,6 +163,9 @@ class DependencyDownloader(dependenciesRoot: File,
                             currentBytes += read
                             read = from.read(buffer)
                         }
+                        if (currentBytes != totalBytes) {
+                            throw EOFException("The stream closed before end of downloading.")
+                        }
                     }
                 }
             } catch (e: Throwable) {
@@ -179,7 +182,7 @@ class DependencyDownloader(dependenciesRoot: File,
         println("Done.")
         if (downloadError != null) {
             tmpFile.delete()
-            throw RuntimeException("Cannot download dependency: $url", downloadError)
+            throw IOException("Cannot download dependency: $url", downloadError)
         }
         Files.move(
                 tmpFile.toPath(),