I tried to invoke Report Problem button in an exception dialog. IDE froze for a
few minutes because AWT thread was blocked by some network communication.

It was probably caused by wrong proxy settings but I think network communication
cannot be run in AWT thread and there should be some progress showing what is
happening.

"AWT-EventQueue-1" prio=10 tid=0x08a2b800 nid=0xd78 runnable
[0x9f0c1000..0x9f0c1eb0]
   java.lang.Thread.State: RUNNABLE
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(SocketInputStream.java:129)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
        at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
        - locked <0xa00aaee8> (a java.io.BufferedInputStream)
        at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:632)
        at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:577)
        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1004)
        - locked <0xa009aa00> (a sun.net.www.protocol.http.HttpURLConnection)
        at
org.netbeans.modules.uihandler.Installer$Submit.doShow(Installer.java:521)
        at
org.netbeans.modules.uihandler.Installer.doDisplaySummary(Installer.java:241)
        at
org.netbeans.modules.uihandler.Installer.displaySummary(Installer.java:221)
        at org.netbeans.modules.uihandler.UIHandler.run(UIHandler.java:86)
        at
org.netbeans.modules.uihandler.UIHandler.actionPerformed(UIHandler.java:105)