[cross-project-issues-dev] Potential for errors with p2 update and http

[Thomas Watson <tjwatson@xxxxxxxxxx>]

I have not heard of any other reporters
of this.   I got it hit with it again recently and wanted to make
others aware while testing M3.  If your installation contains multiple
versions of the apache http client then you could be hit by https://bugs.eclipse.org/bugs/show_bug.cgi?id=447993

My installation of jgit happens to pull
in an older version of apache http client and I get hit with the following
exception when trying to update with p2.

java.lang.NoSuchMethodError: org.apache.http.impl.client.DefaultHttpClient.execute(Lorg/apache/http/client/methods/HttpUriRequest;Lorg/apache/http/protocol/HttpContext;)Lorg/apache/http/client/methods/CloseableHttpResponse;
        at
org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.performConnect(HttpClientRetrieveFileTransfer.java:1077)
        at
org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer.access$0(HttpClientRetrieveFileTransfer.java:1068)
        at
org.eclipse.ecf.provider.filetransfer.httpclient4.HttpClientRetrieveFileTransfer$1.performFileTransfer(HttpClientRetrieveFileTransfer.java:1064)
        at
org.eclipse.ecf.filetransfer.FileTransferJob.run(FileTransferJob.java:73)
        at
org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)


The only work around I have found is
to bring up the osgi> console and manually refresh the org.eclipse.ecf.provider.filetransfer.httpclient4
bundle:

osgi> refresh org.eclipse.ecf.provider.filetransfer.httpclient4

That allows ecf to be rewired to the
latest version of apache.  I suspect I am hitting this because I do
build to build upgrades which has been updating the latest version of apache
http client recently.  This ends up causing ecf to be re-resolved
and wires to the pre-resolved older version still left around.

Tom