without success. The stacktrace is:
JNLPException[category: Startdateifehler : Exception: null : LaunchDesc:
<jnlp spec="1.6+" codebase="https://www.dukascopy.com/client/demo/jclient/" href="https://www.dukascopy.com/client/demo/jclient/jforex.jnlp">
<information>
<title>JForex Client</title>
<vendor>FX Marketplace Platform</vendor>
<homepage href="null"/>
<description kind="short">JForex Trading Platform</description>
<description kind="one-line">JForex Trading Platform</description>
<description kind="tooltip">JForex Trading Platform</description>
<icon href="https://www.dukascopy.com/client/images/jforex_icon.png" kind="default"/>
</information>
<security>
<all-permissions/>
</security>
<update check="timeout" policy="always"/>
<resources>
<property name="jnlp.client.version" value="2.14.23"/>
<property name="jnlp.platform.mode" value="jforex"/>
<property name="jnlp.client.mode" value="DEMO"/>
<property name="jnlp.login.url" value="https://www1.dukascopy.com/authorization/demo,https://www2.dukascopy.com/authorization/demo,https://www3.dukascopy.com/authorization/demo"/>
<property name="sun.java2d.d3d" value="false"/>
<java initial-heap-size="33554432" max-heap-size="536870912" version="1.6+"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/7zip-4.65.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/DDS2-Connector-1.1.50.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/DDS2-TextEditor-1.6.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/JForex-API-2.6.57.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/ecj-3.5.2.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/jForex-2.14.23.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/jakarta-oro-2.0.8.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/jakarta-regexp-1.4.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/jcalendar-1.3.3.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/lucene-core-3.4.0.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/lucene-highlighter-3.4.0.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/lucene-memory-3.4.0.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/lucene-queries-3.4.0.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/mina-core-1.1.7.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/mina-filter-ssl-1.1.7.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/nlink-1.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/slf4j-api-1.5.8.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/slf4j-jdk14-1.5.8.jar" download="eager" main="false"/>
<jar href="https://www.dukascopy.com/client/demo/jclient/lib/ta-lib-0.4.4dc.jar" download="eager" main="false"/>
</resources>
<application-desc main-class="com.dukascopy.dds2.greed.GreedClient"/>
</jnlp> ]
at com.sun.javaws.LaunchDownload.getMainClassName(LaunchDownload.java:1028)
at com.sun.javaws.Launcher.doLaunchApp(Launcher.java:1044)
at com.sun.javaws.Launcher.run(Launcher.java:105)
at java.lang.Thread.run(Thread.java:619)
