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These rules can be specified as configuration-scoped preferences available via the Authorities tab of the Install/Update → Trust preferences: This can be relevant inside a corporate environment where the firewall may introduce certificates into the network traffic that are not recognized by the cacerts of the Java runtime, i.e., this may be used to avoid " PKIX path validation failed" exceptions that can otherwise be fixed only by importing the firewall certificate into the Java runtime's cacerts. The following system properties can be used to affect this behavior: p2.httpRuleĪdding the line -Dp2.httpRule=allow as the last line of the eclipse.ini can be used to restore the previous behavior. To address CVE-2021-41033, all access to external update sites and their artifacts is forced to use https, even when http is specified. This is sometimes also helpful when you have a local update site for testing custom plugins

Go to Window -> Preferences -> Install Update -> Available Software Sites => select the entry and click the "Reload" button to the right. Just remember to copy the adress so you can add it again. Go to Window -> Preferences -> Install/update: Available Software sites.

So, if you still get no connection to the indigo update site, but everything else is working, try that. This forces Eclipse to reread the contents of the site even if it has a cached copy. I have encountered problems where an update site would not load, then I had to remove it and add it again.

If internet is working fine outside of Eclipse, try changing to Native. Native provider available, selecting this one causes settings that Selecting Manual causes settingsĭefined in Eclipse to be used. Specifies the settings profile to be used when opening connections.Ĭhoosing the Direct provider causes all the connections to be opened What are your proxy preferences? Go to Window -> preferences -> General: Network connections. Look up any normal adress, is it working?Ĭan you connect to another update site? Try for example Eclipse Emma: Do you see anything there? In Eclipse: Window -> show view -> Other -> General: Internal web browser. Can you connect to internet at all through Eclipse?