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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=22347 java task with BufferedReader hangs [EMAIL PROTECTED] changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED Target Milestone|--- |1.6 ------- Additional Comments From [EMAIL PROTECTED] 2003-08-12 14:04 ------- I presume you are forking the <java> task. Your code should work if you don't fork since you will then access System.in of the Ant VM. When forked, the <java> task is run in a separate VM and no input is provided to this VM. Any attempt to read input will hang that VM waiting for input that is never going to arrive. The input you are typing is going to Ant's VM, not the one running your Java code. The Ant VM isn't trying to read it's input, it's waiting for the external VM to finish. The end result is that everything hangs. Ant 1.6 has much better input handling. By default when forked, the external VM's input stream is closed so that any attempts to read input will fail fast - i.e. it won't hang. Your readLine will return null. You may, however, provide input to the task from a file or an Ant property. It is not possible to connect the console to the forked <java> task in the external VM. i.e. You cannot type into console and have that input provided to the external VM. In general achieving this would be difficult given that more than one task may be running in parallel and there is no way to know how much input each task will want. Finally Ant 1.6 adds a -noinput flag. This prevents even non-forked <java> tasks from reading input. This can be useful if you don't want to inadvertently hang an unattended Ant operation (say a continuous integration type of run). --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
