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I20080612-2000 I removed the source attachment from an rt.jar, and then hovered over a reference to java.lang.Object from that jar. When no hover appeared, I checked the threads, and found that the Text Viewer Hover Presenter was blocked. The URL was http://java.sun.com/javase/6/docs/api/java/lang/Object.html . I checked the firewall, but I didn't find any problem there. In the browser, the URL above worked fine. I have not found an easy way to add a timeout (except for opening the connection in a separate thread). java.net.URLConnection#setReadTimeout(int) is unfortunately only available in 1.5. Daemon Thread [Text Viewer Hover Presenter] (Suspended) owns: PlainSocketImpl (id=151) owns: HttpClient (id=152) owns: HttpURLConnection (id=153) PlainSocketImpl.socketConnect(InetAddress, int, int) line: not available [native method] PlainSocketImpl.doConnect(InetAddress, int, int) line: 389 PlainSocketImpl.connectToAddress(InetAddress, int, int) line: 250 PlainSocketImpl.connect(SocketAddress, int) line: 237 Socket.connect(SocketAddress, int) line: 540 Socket.connect(SocketAddress) line: 490 HttpClient(NetworkClient).doConnect(String, int) line: 180 HttpClient.openServer(String, int) line: 403 HttpClient.openServer() line: 521 HttpClient.<init>(URL, Proxy, int) line: 246 HttpClient.New(URL, Proxy, int, boolean) line: 320 HttpClient.New(URL, Proxy, int) line: 337 HttpURLConnection.getNewHttpClient(URL, Proxy, int) line: 822 HttpURLConnection.plainConnect() line: 774 HttpURLConnection.connect() line: 699 HttpURLConnection.getInputStream() line: 943 [local variables unavailable] ResolvedBinaryType(JavaElement).getURLContents(String) line: 751 ResolvedBinaryType(BinaryType).getJavadocContents(IProgressMonitor) line: 1059 ResolvedBinaryType(BinaryType).getAttachedJavadoc(IProgressMonitor) line: 971 JavadocContentAccess2.getHTMLContent(IMember, boolean, boolean) line: 98 JavadocHover.getHoverInfo(IJavaElement[], String, JavadocBrowserInformationControlInput) line: 552 JavadocHover.internalGetHoverInfo(ITextViewer, IRegion) line: 509 JavadocHover.getHoverInfo2(ITextViewer, IRegion) line: 494 BestMatchHover.getHoverInfo2(ITextViewer, IRegion) line: 129 JavaEditorTextHoverProxy.getHoverInfo2(ITextViewer, IRegion) line: 82 TextViewerHoverManager$4.run() line: 166
I could reproduce this also after I restarted the runtime workbench in which it originally happened. However, I could not reproduce any more after I restarted my computer. OK to close for now, unless you think there really is a problem in the connection code.
Olivier, what do you think? Could we improve the connection code?
With what we have available as API from the core libraries, there is not much we can do. Maybe we should investigate using the org.apache.commons.httpclient which is available through orbit. Philippe, any thoughts on this?
I think for compatible deltas we are only checking ADDED and CHANGED deltas. For not compatible deltas, we should also report a problem.
*** This bug has been marked as a duplicate of bug 136091 ***
