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Please go to the Sun Java site and verify that Java is enabled in your browser: http://www.java.com/en/download/help/testvm.xml

Java software is available for Windows, Macintosh, Linux and UNIX operating systems.

If you're having problems with site tools and suspect Java problems, please see this FAQ:
»Tools FAQ »Tweak Test - Speed Test Problems

Don't leave feedback for this FAQ question if you are experiencing difficulty with the site's java applets. Post in the Site Tools forum where you can get help and your questions will be seen by many.

Feedback received on this FAQ entry:
  • Java message: Application Blocked by Java Security "For security, applications must now meet the requirements for the High or Very high security settings, or be part of the Exception Site List, to be allowed to run." More information: http://java.com/en/download/help/jcp_security.xml Solution: 1. In the Java control panel app, under the Security tab, select "Enable Java content in the browser", security level "Very high", then Apply. 2. Click on "Edit Site List", add an exception for the following URL: http://www.dslreports.com/tweaks Notes: - your browser must support the Java plug-in and the plug-in must be enabled - Firefox users running NoScript must configure NoScript to allow Java - Chromium does not support the Java plug-in Although the application now runs, at the present time it still does not work because the application reports: The test server is unreachable Error: access denied - java.net.socketpermission _______ Reference http://java.com/en/download/faq/exception_sitelist.xml Is there a native tool for various platforms which does the same thing, or some alternative that does not require Java?

    2015-01-25 15:16:26

  • On Firefox: Close Firefox Clear Firefox cache (CCleaner) Open Java in your Window's OS control panel Find the option to restore security prompts Add http://www.dslreports.com to exceptions in Java Close Java control panel Navigate to DSLreports Worked for me

    2014-12-29 15:15:16

  • Tweak Tester wouldn't run regardless of security level. Temporarily adding dslrports.com to the Exception Site List (on the security tab) let me run it... but I shouldn't have had to.

    2014-05-23 00:09:27 (OriginalDrM See Profile)

  • the tweak test even after creating an exception will not run here is the java report: com.sun.deploy.security.BlockedException: The application was blocked even though the host site of the html file at: http://www.dslreports.com/tweaks is included in the Exception Site List because the application refers to resources on multiple domains. The jar file at file:/C:/Program%20Files/Java/jre7/lib/applet/WMPNS.jar is on a different domain and is not also included on the Exception Site List. at com.sun.deploy.security.ruleset.RuleId.isException(Unknown Source) at com.sun.deploy.security.ruleset.DeploymentRuleSet.getDefaultOrException(Unknown Source) at com.sun.deploy.security.ruleset.DeploymentRuleSet.getDRS(Unknown Source) at com.sun.deploy.security.ruleset.DeploymentRuleSet.findDRS(Unknown Source) at sun.plugin2.applet.Applet2Manager.getMainDeploymentRuleSet(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader.getDeploymentRuleSet(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.isTrustedByTrustDecider(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.getTrustedCodeSources(Unknown Source) at com.sun.deploy.security.CPCallbackHandler$ParentCallback.strategy(Unknown Source) at com.sun.deploy.security.CPCallbackHandler$ParentCallback.openClassPathElement(Unknown Source) at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(Unknown Source) at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$1000(Unknown Source) at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(Unknown Source) at com.sun.deploy.security.DeployURLClassPath$JarLoader.(Unknown Source) at com.sun.deploy.security.DeployURLClassPath$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source) at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source) at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source) at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source) at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.Exception ... 35 more

    2014-02-05 18:47:27

  • Tool will not run with Java7 /51. Clicking do not block has no effect. Nor does reducing security settings. Java message says reason it wont run is because it has a combination of signed and unsigned code.

    2014-02-05 18:42:47

  • version 7 update 40: does not work: security set to medium

    2013-09-24 06:28:03 (stoneynt See Profile)

  • mon fils telephonique il etait briser mais la je l est remplacer

    2013-05-12 08:07:05

  • when I try to run the tweak test I get this: 1. Java applet loading is displayed with animation. 2. Result display !Error. Click for details. 3. Application Error [ ClassNotFoundException ] ! tweak7.class (Details) (Ignore) (Reload) 4. Details : Java Plug-in : v 1.7.0_17-b02 Java HotSpot(TM) Client VM

    2013-03-14 10:42:43 (edgreason See Profile)

  • still does not work

    2013-03-04 19:21:34 (ld95621 See Profile)

  • There is a major security flaw in Java JVM that is being repaired. It's been disabled.

    2013-02-16 10:59:14 (jayesel317 See Profile)

  • Still not working 12/27/2012.

    2012-12-27 06:06:44

  • Why has the applet stopped working in spite of Java being uptodate?

    2012-12-05 09:58:25

  • Tweak Test stop working with latest Java update. XP, 7, MAC, doesn't matter... all are no longer working :( Thanks so much!

    2012-12-01 09:26:27 (Zippy6 See Profile)

edited by KeysCapt See Profile
last modified: 2009-04-29 16:51:10