OWS-606: FileNotFound treated as Proxy exception

Author: janakmulani

core/src/main/java/net/adoptopenjdk/icedteaweb/resources/downloader/BaseResourceDownloader.java

@@ -12,12 +12,14 @@
 import net.adoptopenjdk.icedteaweb.resources.Resource;
 import net.adoptopenjdk.icedteaweb.resources.cache.Cache;
 import net.adoptopenjdk.icedteaweb.resources.cache.DownloadInfo;
+import net.adoptopenjdk.icedteaweb.ui.swing.SwingUtils;
 import net.sourceforge.jnlp.config.ConfigurationConstants;
 import net.sourceforge.jnlp.runtime.JNLPRuntime;
 import net.sourceforge.jnlp.util.UrlUtils;
 
 import java.io.ByteArrayInputStream;
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.Socket;
@@ -104,9 +106,12 @@ private String exceptionMessage(final Exception e) {
     private void checkForProxyError() {
         for (final Exception excp : downLoadExceptions) {
             final Throwable cause = excp.getCause();
-            if (cause instanceof IOException && cause.getMessage().toLowerCase().contains("proxy")) {
-                BasicExceptionDialog.show((IOException) cause);
-                JNLPRuntime.exit(-1);
+            if (cause instanceof IOException && !(cause instanceof FileNotFoundException) && cause.getMessage().toLowerCase().contains("proxy")) {
+                BasicExceptionDialog.willBeShown();
+                SwingUtils.invokeLater(() -> {
+                    BasicExceptionDialog.show((IOException) cause);
+                    JNLPRuntime.exit(-1, false);
+                });
             }
         }
     }

core/src/main/java/net/sourceforge/jnlp/runtime/JNLPRuntime.java

@@ -894,12 +894,19 @@ private static boolean isPluginDebug() {
         return pluginDebug;
     }
 
-    public static <T> T exit(int i) {
-        waitForExceptionDialogsToBeClosed();
+    public static <T> T exit(int i, boolean waitToCloseExceptionDialogs) {
+        LOG.debug("JNLPRuntime,exit()");
+        if (waitToCloseExceptionDialogs) {
+            waitForExceptionDialogsToBeClosed();
+        }
         System.exit(i);
         return null;
     }
 
+    public static <T> T exit(int i) {
+        return exit(i, true);
+    }
+
     public static void waitForExceptionDialogsToBeClosed() {
         try {
             if (BasicExceptionDialog.areShown()) {