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Tycho build fails [message #1816963]

Wed, 13 November 2019 01:51

Eclipse User

Trying to automate the build process for my sample plugin project usinf maven tycho. Tried all known solutions, but no luck.

Set up details :
1. Using eclipse 2018-12 with PDE plugin installed for plugin development
2. Proxy settings are done
3. Maven(3.6.0) is installed
4. Converted my simple plugin to maven project. And pom looks like below,

.....
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.myorg</groupId>
	<artifactId>com.myorg.myplgin</artifactId>
	<version>1.0.0-SNAPSHOT</version>
	<packaging>eclipse-plugin</packaging>
	<properties>
		<tycho-version>1.4.0</tycho-version>
	</properties>
	<repositories>
		<repository>
			<id>2018-12</id>
			<layout>p2</layout>
			<url>https://download.eclipse.org/releases/2018-12/</url>
		</repository>
	</repositories>
	<build>
		<plugins>
			<plugin>
				<groupId>org.eclipse.tycho</groupId>
				<artifactId>tycho-maven-plugin</artifactId>
				<version>${tycho-version}</version>
				<extensions>true</extensions>
			</plugin>
		</plugins>
	</build>
</project>

Upon building getting below error,

Caused by: java.net.UnknownHostException: download.eclipse.org
    at java.net.InetAddress.getAllByName0 (InetAddress.java:1280)
    at java.net.InetAddress.getAllByName (InetAddress.java:1192)
    at java.net.InetAddress.getAllByName (InetAddress.java:1126)
    at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve (SystemDefaultDnsResolver.java:45)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.resolveHostname (DefaultClientConnectionOperator.java:263)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection (DefaultClientConnectionOperator.java:162)
    at org.apache.http.impl.conn.ManagedClientConnectionImpl.open (ManagedClientConnectionImpl.java:326)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect (DefaultRequestDirector.java:610)
    at org.apache.http.impl.client.DefaultRequestDirector.execute (DefaultRequestDirector.java:445)
    at org.apache.http.impl.client.AbstractHttpClient.doExecute (AbstractHttpClient.java:835)
    at org.apache.http.impl.client.CloseableHttpClient.execute (CloseableHttpClient.java:83)
    at org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientFileSystemBrowser.runRequest (HttpClientFileSystemBrowser.java:263)
    at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run (AbstractFileSystemBrowser.java:69)
    at org.eclipse.core.internal.jobs.Worker.run (Worker.java:63)

Not able to make out what is wrong here. All proxy settings are fine, still host is unknown. Seems like its very old issue and have been discussed plenty of times in this forum, but no solution mentioned in those posts worked for me. So re-posting the issue.

Re: Tycho build fails [message #1816994 is a reply to message #1816963]

Wed, 13 November 2019 08:57

Eclipse User

A failure to find a server's name sounds like a fundamental DNS configuration problem in the server machine on which you run your Tycho build. I doubt than can be fixed via anything configurable in the Maven/Tycho build itself. Does the shell script "ping download.eclipse.org" work on that machine?

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