8003120: ResourceManager.getApplicationResources() does not close InputStreams

Summary: Add finally blocks to close the InputStream instances
Reviewed-by: lancea

src/share/classes/com/sun/naming/internal/ResourceManager.java

@@ -542,9 +542,15 @@ public final class ResourceManager {
             try {
                 NamingEnumeration<InputStream> resources =
                     helper.getResources(cl, APP_RESOURCE_FILE_NAME);
+                try {
                     while (resources.hasMore()) {
                         Properties props = new Properties();
-                    props.load(resources.next());
+                        InputStream istream = resources.next();
+                        try {
+                            props.load(istream);
+                        } finally {
+                            istream.close();
+                        }
 
                         if (result == null) {
                             result = props;
@@ -552,11 +558,18 @@ public final class ResourceManager {
                             mergeTables(result, props);
                         }
                     }
+                } finally {
+                    while (resources.hasMore()) {
+                        InputStream istream = (InputStream)resources.next();
+                        istream.close();
+                    }
+                }
 
                 // Merge in properties from file in <java.home>/lib.
                 InputStream istream =
                     helper.getJavaHomeLibStream(JRELIB_PROPERTY_FILE_NAME);
                 if (istream != null) {
+                    try {
                         Properties props = new Properties();
                         props.load(istream);
 
@@ -565,6 +578,9 @@ public final class ResourceManager {
                         } else {
                             mergeTables(result, props);
                         }
+                    } finally {
+                        istream.close();
+                    }
                 }
 
             } catch (IOException e) {