java.net.SocketException: No buffer space available

[Charles Dupin]

Any idea why since I implemented a connection factory I get sometimes the following exception on the client side at the call objref = Naming.lookup(url);.
It occurs at random.
The exception is:

 java.rmi.ConnectIOException: Exception creating connection to: localhost; nested exception is: 
java.net.SocketException: No buffer space available (maximum connections reached?): connect
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:580)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:185)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:313)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at suncertify.viewer.FBNClient.getHandleToServer(FBNClient.java:229)
at suncertify.viewer.FBNClient.<init>(FBNClient.java:72)
at suncertify.viewer.FBNClient.main(FBNClient.java:269)
Caused by: java.net.SocketException: No buffer space available (maximum connections reached?): connect 

[Peter den Haan]

This can be a bug in early versions of the JVM (was it 1.3 or 1.4?) -- upgrade to the latest version. Also, check that you cleanly close all the sockets and other connections that you use.
- Peter

[Chirag Jakharia]

I am also facing this problem

I read in one of the websites that we can increase buffer space by making some changes in the Windows registry.
Does anyone knows the changes required in the registry

Thanks in advance

CSJakharia