[tycho-user] http not working when using tycho-eclipserun-plugin

["Kopecz, Klaus" <klaus.kopecz@xxxxxxx>]

I'm starting the "B3 Aggregator" application via Tycho's eclipserun plugin. This application is trying to access some URLs via http as specified in a configuration file. During the build Tycho comes up with the following command line

cmd.exe /X /C ""C:\Program Files\Java\jre6\bin\java.exe" -jar C:\Users\d099999\.m2\repository\p2\osgi\bundle\org.eclipse.equinox.launcher\1.3.0.v20120522-1813\org.eclipse.equinox.launcher-1.3.0.v20120522-1813.jar -install C:\eclipse\eclipse4\workspace\B3fromTycho\feature\target\work -configuration C:\eclipse\eclipse4\workspace\B3fromTycho\feature\target\work\configuration -application org.eclipse.b3.cli.headless aggregate --buildModel test.b3aggr"

which lets B3 Aggregator fail with

Unable to load repository http://nexus ...
Unable to load repository http://nexus ...
Unable to load repository p2:http://nexus ...
Unable to load repository p2:http://nexus ...
Build failed! Exception was org.eclipse.core.runtime.CoreException: Not all repositories could be loaded (see log for details)
Not all repositories could be loaded (see log for details)

Using my "own" command line from a dos shell works fine if I'm using the equinox launcher from my local Eclipse installation

java.exe -jar C:\eclipse\eclipse4\eclipse\plugins\org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar -application org.eclipse.b3.cli.headless aggregate --buildModel test.b3aggr

Any idea what to do to get the Tycho command line working for http? Do I need additional dependencies in the eclipserun-plugin configuration? Here is my pom-snippet:

<plugin>
	<groupId>org.eclipse.tycho.extras</groupId>
	<artifactId>tycho-eclipserun-plugin</artifactId>
	<version>${tycho-version}</version>
	<configuration>
	               <appArgLine>-application org.eclipse.b3.cli.headless aggregate --buildModel test.b3aggr</appArgLine>
		<dependencies>
                    		<dependency>
                        			<artifactId>org.eclipse.b3.cli</artifactId>
		                        	<type>eclipse-plugin</type>
		             	</dependency>
                       		<dependency>
		                        	<artifactId>org.eclipse.b3.aggregator.engine</artifactId>
		                        	<type>eclipse-plugin</type>
		              	</dependency>              	
                	</dependencies>
	 </configuration>
	<executions>
	 	<execution>
			<goals>
		                        	<goal>eclipse-run</goal>
	                    	</goals>
			<phase>compile</phase>
		</execution>
            	</executions>
</plugin>

Thanks,
Klaus