Slow connection operations with java fork=false

[jotpe]

Hello list,

at first my values:
Apache Ant(TM) version 1.9.2 compiled on July 8 2013
java.runtime.version : 1.7.0_45-b18
java.vm.name : Java HotSpot(TM) Client VM
os.name : Windows XP


I've written a Java utility class, that executes some import jobs. If
executed via commandline only OR by ant task with fork="true" parameter, it
runs as it schould: fast and without blocking.

The bottlenecks are retrieving websites
    new URL("xyz").openConnection().getInputStream()
and establishing a database connections
    DriverManager.getConnection(url, props)


With fork="true" OR direct commandline both takes ~ 50 ms +- 25 ms
With fork="false" it takes always 9047 ms +- 13 ms


The ant target looks normal, i think:

<target name="read">
    <java classname="ImportJob" fork="false" failonerror="true">
        <arg value="a" />
        <classpath>
            <pathelement path="dist/classes"/>
            <pathelement location="dist/postgresql-9.1-903.jdbc4.jar" />
            <pathelement location="dist/commons-codec-1.7.jar" />
            <pathelement location="dist/commons-io-2.4.jar" />
            <pathelement location="dist/commons-lang3-3.1.jar" />
            <pathelement location="dist/commons-logging-1.1.1.jar" />
            <pathelement location="dist/httpclient-4.2.3.jar" />
            <pathelement location="dist/httpcore-4.2.2.jar" />
            <pathelement location="dist/utils-io-0.0.2.jar" />
            <pathelement location="dist/gson-2.2.2.jar" />
        </classpath>
    </java>
</target>


Is there somewhere an internal timeout which is reached after 9 seconds
without throwing an exception? Does anyone know this problem, is it a bug?

Best Regards Johannes