6739920: java 6u4~ use larger C heap if there are many threads

Reviewed-by: chegar

src/share/classes/java/net/AbstractPlainSocketImpl.java

@@ -308,6 +308,12 @@ abstract class AbstractPlainSocketImpl extends SocketImpl
             FileDescriptor fd = acquireFD();
             try {
                 socketConnect(address, port, timeout);
+                /* socket may have been closed during poll/select */
+                synchronized (fdLock) {
+                    if (closePending) {
+                        throw new SocketException ("Socket closed");
+                    }
+                }
                 // If we have a ref. to the Socket, then sets the flags
                 // created, bound & connected to true.
                 // This is normally done in Socket.connect() but some

src/solaris/native/java/net/PlainSocketImpl.c

@@ -491,27 +491,6 @@ Java_java_net_PlainSocketImpl_socketConnect(JNIEnv *env, jobject this,
         return;
     }
 
-    /*
-     * The socket may have been closed (dup'ed) while we were
-     * poll/select. In that case SO_ERROR will return 0 making
-     * it appear that the connection has been established.
-     * To avoid any race conditions we therefore grab the
-     * fd lock, check if the socket has been closed, and
-     * set the various fields whilst holding the lock
-     */
-    fdLock = (*env)->GetObjectField(env, this, psi_fdLockID);
-    (*env)->MonitorEnter(env, fdLock);
-
-    if ((*env)->GetBooleanField(env, this, psi_closePendingID)) {
-
-        /* release fdLock */
-        (*env)->MonitorExit(env, fdLock);
-
-        JNU_ThrowByName(env, JNU_JAVANETPKG "SocketException",
-                            "Socket closed");
-        return;
-    }
-
     (*env)->SetIntField(env, fdObj, IO_fd_fdID, fd);
 
     /* set the remote peer address and port */
@@ -536,11 +515,6 @@ Java_java_net_PlainSocketImpl_socketConnect(JNIEnv *env, jobject this,
             (*env)->SetIntField(env, this, psi_localportID, localport);
         }
     }
-
-    /*
-     * Finally release fdLock
-     */
-    (*env)->MonitorExit(env, fdLock);
 }
 
 /*