Download of the rtc.jar fails on certain file systems (FAT, NTFS)

[sbondorf]

As of version 2.5.2, we have the following in the pom.xml's mpa profile to download the rtc.jar:

<plugin>
	<groupId>com.googlecode.maven-download-plugin</groupId>
	<artifactId>download-maven-plugin</artifactId>
	<version>${maven.download.plugin.version}</version>
	<executions>
		<execution>
			<id>get-mpa-rtc</id>
			<phase>validate</phase>
			<goals>
				<goal>wget</goal>
			</goals>
			<configuration>
				<url>http://www.mpa.ethz.ch/static/download.php?file=RTCToolbox_bin.zip</url>
				<unpack>true</unpack>
				<outputDirectory>${project.basedir}/lib/</outputDirectory>
			</configuration>
		</execution>
	</executions>
</plugin>

For some file systems, in particular Windows ones (FAT and NTFS), the question mark ? is a reserved character. Unfortunately, the above code tries to save the zip file under the name download.php?file=RTCToolbox_bin.zip before unzipping and deleting it. This first step fails on some file systems like NTFS. For example, Maven will fail on Windows saying:

Caused by: java.io.FileNotFoundException: C:\Users\user_s_path\DNC\lib\download.php?file=RTCToolbox_bin.zip (The filename, directory name, or volume label syntax is incorrect)
	at java.base/java.io.FileOutputStream.open0(Native Method)
	at java.base/java.io.FileOutputStream.open(FileOutputStream.java:292)
	at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:235)
	at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:185)....

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Workaround

1. Getting the dependency manually:
   For now, Windows users need to manually download the MPA RTC toolbox from http://www.mpa.ethz.ch/static/download.php?file=RTCToolbox_bin.zip and unzip it into the /lib directory.
2. Prevent Maven from trying to download:
   In the pom.xml, remove the above plugin from the mpa profile.

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Thanks to Sidharth Sharma for reporting by email.

[NetCal]

The download URL changed, does not have a question mark in it anymore, so this issue is considered fixed.