Fixes memory leak in FileDescriptor

filedescriptor.patch

diff -r aa0ad405f70b src/solaris/classes/java/io/FileDescriptor.java
--- a/src/solaris/classes/java/io/FileDescriptor.java	Thu Jun 28 14:11:05 2012 -0700
+++ b/src/solaris/classes/java/io/FileDescriptor.java	Tue Jul 03 11:26:32 2012 -0700
@@ -24,8 +24,11 @@
  */
 
 package java.io;
+
+import java.io.Closeable;
+import java.lang.Boolean;
 import java.util.ArrayList;
-import java.util.List;
+import java.util.WeakHashMap;
 
 /**
  * Instances of the file descriptor class serve as an opaque handle
@@ -46,7 +49,7 @@
 
     private int fd;
     private Closeable parent;
-    private List<Closeable> otherParents;
+    private WeakHashMap<Closeable, Boolean> otherParents;
     private boolean closed;
 
     /**
@@ -174,11 +177,11 @@
             // first caller gets to do this
             parent = c;
         } else if (otherParents == null) {
-            otherParents = new ArrayList<>();
-            otherParents.add(parent);
-            otherParents.add(c);
+            otherParents = new WeakHashMap<Closeable, Boolean>();
+            otherParents.put(parent, true);
+            otherParents.put(c, true);
         } else {
-            otherParents.add(c);
+            otherParents.put(c, true);
         }
     }
 
@@ -195,7 +198,7 @@
             IOException ioe = null;
             try (Closeable c = releaser) {
                 if (otherParents != null) {
-                    for (Closeable referent : otherParents) {
+                    for (Closeable referent : otherParents.keySet()) {
                         try {
                             referent.close();
                         } catch(IOException x) {