From 26cdffc7519298f50b1965ac38a749159cbcc2e4 Mon Sep 17 00:00:00 2001
From: lvotypko <lvotypko@redhat.com>
Date: Tue, 17 May 2016 13:44:28 +0200
Subject: [PATCH] Close file after reading.

---
 .../FileBuildParameters.java                    |  2 +-
 .../ParameterizedTriggerUtils.java              | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/main/java/hudson/plugins/parameterizedtrigger/FileBuildParameters.java b/src/main/java/hudson/plugins/parameterizedtrigger/FileBuildParameters.java
index c3739cbe..f4defe4c 100644
--- a/src/main/java/hudson/plugins/parameterizedtrigger/FileBuildParameters.java
+++ b/src/main/java/hudson/plugins/parameterizedtrigger/FileBuildParameters.java
@@ -118,7 +118,7 @@ private List<ParameterValue> extractAllValues(AbstractBuild<?,?> build, TaskList
 			String s = null;
 			VirtualFile artifact = build.getArtifactManager().root().child(file);
 			if (artifact.isFile()) {
-			    s = IOUtils.toString(artifact.open());
+			    s = ParameterizedTriggerUtils.readFileToString(artifact);
 			}
 
 			if (s == null) {
diff --git a/src/main/java/hudson/plugins/parameterizedtrigger/ParameterizedTriggerUtils.java b/src/main/java/hudson/plugins/parameterizedtrigger/ParameterizedTriggerUtils.java
index af8087f0..76734ba6 100644
--- a/src/main/java/hudson/plugins/parameterizedtrigger/ParameterizedTriggerUtils.java
+++ b/src/main/java/hudson/plugins/parameterizedtrigger/ParameterizedTriggerUtils.java
@@ -34,6 +34,7 @@
 import java.io.StringReader;
 import java.util.LinkedHashMap;
 import java.util.Properties;
+import jenkins.util.VirtualFile;
 
 /**
  * Common utility methods.
@@ -67,6 +68,22 @@ public static String readFileToString(FilePath f, String encoding) throws IOExce
         }
     }
     
+        /**
+     * {@link read VirtualFile
+     * 
+     * @param f file to read
+     * @return read string
+     * @throws IOException
+     */
+    public static String readFileToString(VirtualFile f) throws IOException, InterruptedException {
+        InputStream in = f.open();
+        try {
+            return IOUtils.toString(in);
+        } finally {
+            in.close();
+        }
+    }
+    
     public static ParametersAction mergeParameters(ParametersAction base, ParametersAction overlay) {
         LinkedHashMap<String,ParameterValue> params = new LinkedHashMap<String,ParameterValue>();
         for (ParameterValue param : base.getParameters())