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Andreas Kohlbecker, 03/23/2017 11:46 AM


Taxonomic Editor development environment

The main source of information is Setting up a Taxonomic Editor development environment

This page only contains additional information not yet contained in the above linked page.

Download timeouts in the maven validate phase

This especially happens with the http://download.eclipse.org/releases/ repository from where plugins have to be downloaded.

The according error message in the maven log is:

[ERROR] Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'eclipse-swtbot' from location http://download.eclipse.org/releases/indigo/: Unable to read repository at http://download.eclipse.org/releases/indigo. Unable to read repository at http://download.eclipse.org/releases/indigo/201109230900/content.jar. Read timed out -> [Help 1]

Running maven in the debug mode (-X) reveals that this is a socket timeout:

Caused by: java.net.SocketTimeoutException: Read timed out
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
    at java.net.SocketInputStream.read(SocketInputStream.java:170)
    at java.net.SocketInputStream.read(SocketInputStream.java:141)
    at org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:198)
    at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:178)
    at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:137)
    at java.io.FilterInputStream.read(FilterInputStream.java:133)
    at java.io.FilterInputStream.read(FilterInputStream.java:107)
    at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer$1.performFileTransfer(AbstractRetrieveFileTransfer.java:178)
    at org.eclipse.ecf.filetransfer.FileTransferJob.run(FileTransferJob.java:73)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

In the above download process two classes are involved which have different timeoiut settings:

  • org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer
  • java.net.SocketInputStream

setting timeout controls for JRE-http based transport in org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer

See http://wiki.eclipse.org/Equinox/p2/TransportDebugging.

In case of equinox transport timeouts, a message like the following will should occur in the stack trace:

    Timeout while reading input stream.
    The following system properties can be used to adjust the readTimeout, retryAttempts, and closeTimeout
    org.eclipse.ecf.provider.filetransfer.retrieve.readTimeout=xxx
    org.eclipse.ecf.provider.filetransfer.retrieve.retryAttempts=xxx
    org.eclipse.ecf.provider.filetransfer.retrieve.closeTimeout=xxx

Setting the waggon timeouts in the setting.xml

see http://maven.apache.org/guides/mini/guide-http-settings.html and http://stackoverflow.com/questions/23510525/maven-dependency-timeout-settings#27015320

This setting is supposed to configure the java.net.SocketInputStream timeouts which therefore should be the correct one in order to fix the above problem.

However, setting

<server>
  <id>eclipse-swtbot</id>
  <configuration>
    <httpConfiguration>
      <all>
        <connectionTimeout>180000</connectionTimeout>
        <readTimeout>180000</readTimeout>
      </all>
    </httpConfiguration>
  </configuration>
</server>

Causes an error in maven. Maven is missing the user credentials and fails with a NullPointerException. Maybe updating maven helps?

Updated by Andreas Kohlbecker about 7 years ago · 3 revisions