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Build: NetBeans IDE Dev (Build 201705050001) VM: Java HotSpot(TM) 64-Bit Server VM, 25.131-b11, Java(TM) SE Runtime Environment, 1.8.0_131-b11 OS: Windows 10 User Comments: mkhramov: Convert maven artefact to Netbeans library GUEST: Create new Library from maven artefact Stacktrace: java.lang.AssertionError at org.openide.awt.HtmlRendererImpl.reset(HtmlRendererImpl.java:103) at org.openide.awt.HtmlRendererImpl.getTreeCellRendererComponent(HtmlRendererImpl.java:147) at org.openide.explorer.view.NodeRenderer.getTreeCellRendererComponent(NodeRenderer.java:156) at org.openide.explorer.view.TreeView.initializeTree(TreeView.java:314) at org.openide.explorer.view.TreeView.<init>(TreeView.java:238) at org.openide.explorer.view.TreeView.<init>(TreeView.java:228)
Created attachment 164285 [details] stacktrace
Looks very similar to https://netbeans.org/bugzilla/show_bug.cgi?id=269775