I think the main issue is it is running in a forked JVM, but I am not
sure, since I haven't gotten to the low-level details. It runs fine
if I call the goal from the command line (and not as part of a
preparationGoal during release)
My guess is that Plexus is somehow redirecting the owner process
System.in and passing it to the forked process, but I really have no
clue. All I know is it hangs on bufferedReader.readLine()
-Grant
On May 11, 2007, at 10:08 AM, Daniel Kulp wrote:
On Thursday 10 May 2007 16:35, Wayne Fay wrote:
In M2, things like this are generally either passed as parameters
(-D...) or simply specified as configurations for the plugin in the
pom.xml configuration.
Actually, I can't think of a single M2 plugin that prompts the user
for input while processing etc. There is probably a good reason for
this (the forked JVM etc) so perhaps reconsider your approach?
The GPG plugin will prompt for a passphrase. It just uses straight
System.in stuff without a problem. Not sure why it works and yours
doesn't.
Dan
Wayne
On 5/10/07, Grant Ingersoll <[EMAIL PROTECTED]> wrote:
Hi,
Long time M1 user upgrading to M2...
I have a Mojo that I have written that asks for user input
concerning it's operation (I use a BufferedReader wrapping
System.in). When I run the goal standalone, everything works fine.
However, when I run the goal as preparationGoal of the
maven-release-plugin, it hangs and never seems to get the input from
the command line. I think the issue lies in the fact that it is a
forked JVM but I am not sure. I have trouble debugging it, b/c the
debugging options specified in the mvn command (via MAVEN_OPTS)
don't work b/c I get errors saying the port is already in use (it
starts up and listens on the port, but then a subprocess seems to
try to acquire the same port, resulting in an error.)
Below is the code I have in my mojo.
BufferedReader reader
= new BufferedReader(new
InputStreamReader(System.in)); String line = null;
try
{
getLog().warn("Pre loop");
while (true)
{
getLog().warn
(tagDir
+ " exists in the repository - [d]elete or
[a]bort?");
line = reader.readLine();
getLog().debug("Before check: " + line);
if (line.equalsIgnoreCase("a") ||
line.equalsIgnoreCase("d"))
{
break;
}
getLog().debug("Here: " + line);
}
getLog().warn("Line: " + line);
if (getLog().isDebugEnabled())
{
getLog().debug("Line: " + line);
}
Thanks,
Grant
--------------------------
Grant Ingersoll
Center for Natural Language Processing
http://www.cnlp.org/tech/lucene.asp
Read the Lucene Java FAQ at http://wiki.apache.org/jakarta-lucene/
LuceneFAQ
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