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Created attachment 153364 [details] 20 seconds long profiling snapshot from VisualVM while NetBeans was validating some of the downloaded plugins. Product Version: NetBeans IDE Dev (Build Trunk-Build-1202-on-20150423) Updates: Updates available Java: 1.8.0_40; Java HotSpot(TM) 64-Bit Server VM 25.40-b25 Runtime: Java(TM) SE Runtime Environment 1.8.0_40-b25 System: Linux version 3.13.0-24-generic running on amd64; UTF-8; en_US (nb) Description: ============ Under certain circumstances like specific networking setup validation of signed plugins takes enormous time. I hope that attached profiling snapshot and two thread dumps might help diagnose the problem. Steps to reproduce: =================== 0. Be connected to your corporate network via VPN client but don't have any proxy set. Make sure NetBeans IDE takes your operating system's networking configuration. 1. Download JRebel [1] and Codename One [2] plugin binaries. 2. Launch NetBeans IDE and invoke "Tools > Plugins" from main menu. 3. Switch to "Downloaded" tab and push "Add Plugins..." button. 4. Navigate to folder with the NBM files, multiselect them and push "OK" button. 5. Make sure both plugins are checked for installation and push "Install" button. 6. Push "Next >" button and watch the progress of installation. Expected: All required plugins are downloaded and their validation takes couple of seconds depending on number of plugins to be validated of course. Actual: All required plugins are downloaded and their validation takes for example ~4 minutes in case of 11 plugins.
Created attachment 153365 [details] Thread dump taken while NetBeans was validating some plugins.
And here are the plugin links: [1] http://plugins.netbeans.org/download/plugin/3564 [2] http://plugins.netbeans.org/download/plugin/3585
Created attachment 153371 [details] Another thread dump taken while NetBeans was validating some plugins.
Not exactly duplicate of issue 252076 but has the same cause. *** This bug has been marked as a duplicate of bug 252076 ***
OK, this is really a duplicate of issue #252076. Verifying.