SOLR-4525: Fix more leaks with open files on properties load/store

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1452143 13f79535-47bb-0310-9956-ffa450edef68

solr/core/src/java/org/apache/solr/core/SolrProperties.java

@@ -38,6 +38,7 @@ import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -332,10 +333,14 @@ public class SolrProperties implements ConfigSolr {
       }
     }
 
+    OutputStream os = null;
     try {
-      outProps.store(new FileOutputStream(plus.getFilePath()), null);
+      os = new FileOutputStream(plus.getFilePath());
+      outProps.store(os, null);
     } catch (IOException e) {
       log.error("Failed to persist core {}, filepath {}", coreName, plus.getFilePath());
+    } finally {
+      IOUtils.closeQuietly(os);
     }
 
   }
@@ -381,10 +386,14 @@ public class SolrProperties implements ConfigSolr {
         propsOut.put(prop, toTest);
       }
     }
+    OutputStream os = null;
     try {
-      propsOut.store(new FileOutputStream(props), null);
+      os = new FileOutputStream(props);
+      propsOut.store(os, null);
     } catch (IOException e) {
       log.error("Failed to persist file " + props.getAbsolutePath(), e);
+    } finally {
+      IOUtils.closeQuietly(os);
     }
   }
 
@@ -439,7 +448,12 @@ public class SolrProperties implements ConfigSolr {
       if (propFile.exists()) { // Stop looking after processing this file!
         log.info("Discovered properties file {}, adding to cores", propFile.getAbsolutePath());
         Properties propsOrig = new Properties();
-        propsOrig.load(new FileInputStream(propFile));
+        InputStream is = new FileInputStream(propFile);
+        try {
+          propsOrig.load(is);
+        } finally {
+          IOUtils.closeQuietly(is);
+        }
 
         Properties props = new Properties();
         for (String prop : propsOrig.stringPropertyNames()) {

solr/core/src/test/org/apache/solr/core/TestSolrDiscoveryProperties.java

@@ -58,9 +58,12 @@ public class TestSolrDiscoveryProperties extends SolrTestCaseJ4 {
       props.put(parts[0], parts[1]);
     }
     FileOutputStream out = new FileOutputStream(solrProps.getAbsolutePath());
+    try {
       props.store(out, null);
+    } finally {
       out.close();
     }
+  }
 
   private void addSolrXml() throws Exception {
     File tmpFile = new File(solrHomeDirectory, SolrProperties.SOLR_XML_FILE);
@@ -92,8 +95,11 @@ public class TestSolrDiscoveryProperties extends SolrTestCaseJ4 {
     assertTrue("Failed to mkdirs for " + parent.getAbsolutePath(), parent.mkdirs());
 
     FileOutputStream out = new FileOutputStream(propFile);
+    try {
       stockProps.store(out, null);
+    } finally {
       out.close();
+    }
 
     addConfFiles(new File(parent, "conf"));
   }
@@ -304,7 +310,12 @@ public class TestSolrDiscoveryProperties extends SolrTestCaseJ4 {
     Properties curr = cc.getContainerProperties();
 
     Properties persisted = new Properties();
-    persisted.load(new FileInputStream(new File(solrHomeDirectory, SolrProperties.SOLR_PROPERTIES_FILE)));
+    FileInputStream in = new FileInputStream(new File(solrHomeDirectory, SolrProperties.SOLR_PROPERTIES_FILE));
+    try {
+      persisted.load(in);
+    } finally {
+      in.close();
+    }
 
     assertEquals("Persisted and original should be the same size", orig.size(), persisted.size());
 
@@ -332,7 +343,12 @@ public class TestSolrDiscoveryProperties extends SolrTestCaseJ4 {
     // Read the persisted file.
     Properties props = new Properties();
     File propParent = new File(solrHomeDirectory, orig.getProperty(CoreDescriptor.CORE_NAME));
-    props.load(new FileInputStream(new File(propParent, SolrProperties.CORE_PROP_FILE)));
+    FileInputStream in = new FileInputStream(new File(propParent, SolrProperties.CORE_PROP_FILE));
+    try {
+      props.load(in);
+    } finally {
+      in.close();
+    }
     Set<String> propSet = props.stringPropertyNames();
 
     assertEquals("Persisted properties should NOT contain extra properties", propSet.size(), orig.size());