eclipse.ini (sts.ini)
add below settings:
-Dsun.net.client.defaultReadTimeout=3000000
-Xms512m
-Xmx768m
-XX:ReservedCodeCacheSize=128m
-XX:MaxPermSize=256m
-XX:+UseParallelGC
-Dorg.eclipse.ecf.provider.filetransfer.excludeContributors=org.eclipse.ecf.provider.filetransfer.httpclient
-Dhttp.proxyPort=80xx
-Dhttp.proxyHost=xxx.proxy.xxx.com
-Dhttp.nonProxyHosts=localhost|127.0.0.1