I'm seen this question, and I want know if this solution will work only on Java settings in my computer or this will work in all computers with Java installed? Because I want that my applet (.jar) works in all computers with Java installed, and with security settings default (High) that already comes when Java installed see.
Someone could give me a tip?
Thank in advance!
As the answer given into the post you have mentioned which is
Just Go To Startmenu >>Java >>Configure Java >> Security >> Edit site list >> copy and paste your Link with problem >> OK Problem fixed :)
This you have to do in each and every computer in which you want to run your applets , untill you are using self signed applets.
Alternative Solution : Just Use Signed Applets
Update
To understand the diffrence between Unsigned , Self-Signed and Signed Applets i suggest you to read this Java Applets: Unsigned vs Self-Signed vs Signed
In the java Update java7u51 Adding sites in exception list has been changed slightly , you may also look this post for that
Upcoming Exception Site List in 7u51
Related
I have JRE 8u211 installed on a Windows 10 box with IE 11. I can see the Java plugin (and plugin 2) are installed and enabled. I have the "Allow active content to run in files on my computer" option checked under Security. But I cannot get a Java applet to load. Every time the page loads, I get the "The page you are viewing uses Java" notification as if the browser thinks I don't have Java installed.
What am I missing?
Figured it out. I'd forgotten that IE traditionally doesn't seem to like x64 Java installs very much. Once I dropped a 32 bit version, everything worked.
In the perfect dream world where all software development makes use of current and best practices, applets might be dead. But in the actual world of legacy support, they are (unfortunately) still alive.
I second the comment by Elliot Fischer... However, there is still quite a lot of Hardware that is still being supported, or even potentially manufactured (sold for sure) that can only function with these Java applets.
I had this problem with my Motorola FX7400. Of course Motorola says it's "Service & Support Discontinuation Date" is 30.8.2019. Of course the latest firmware is from 2015 and doesn't have a hint of any type of certificate or signing of java applets!
For most applets that have not been updated since the very latest Java Security settings were upgraded in around 2013-2015 and which most likely are also only 32-bit and have no signing of any sort on them; Do the following steps. Of course, even I CANNOT RECOMMEND THIS METHOD AT ALL FOR APPLICATIONS RUN FROM THE INTERNET Also, you should take precautions when trying to use Java like this on Hardware you are not familiar with.
The steps that are required for Windows 7, 8.1 & 10 with Internet Explorer 11 are as follows:
Download and install latest JRE SE 32bit from here: https://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html (And yes, you need to give out your private data including address and phone number. You also need to pay for a license, if you are not a developer or a private user)
Start Internet Explorer 11 (64 bit seems to work fine)
Ensure ActiveX filtering is disabled Tools -> ActiveX filtering On my install disabling this was only necessary to be able to run the Java test from the "alternate page", which is marked "IE 11 users:": https://www.java.com/en/download/installed.jsp
Check that the Java plugin is enabled Tools -> Manage Add-ons
Check that your security zone has Scripting of Java applets enabled. On my IE11 it was enabled by default even for the Internet-zone set to Medium-High with protected mode on Tools -> Internet Options -> Security -> (select your appropriate zone) -> Custom level -> Scripting of Java applets
If the applet that needs to run is not properly signed (very likely...), it is required to set every single URL where an applet is run in to the exceptions. (As of writing this answer, at least wildcars for paths are working.)
When running the applet, accept the security exception prompts that Java prompts for.
And finally! For some reason there will at some point when loading an applet that previously loaded fine be a prompt about not being able to run the applet, because only applications that meet the very high security settings (signed applets) can be run. To get back to running again, Java's temporary files need to be removed. Restoring security prompts has no effect. Start Menu -> Configure Java -> General tab -> Temporary Internet Files -> Settings... -> Delete Files -> OK C:\Users\%username%\AppData\LocalLow\Sun\Java\Deployment\Cache -directory probably also works.
Security and prompts really have come far in the past 10 years, haven't they?
I jumped here searching for an answer that I found elsewhere and I would like to share.
According to my experience the problems of IEx64 with jre x64 are due to the fact that internet explorer tabs are 32 bit processes, so they work only if they find a 32 bit jre. There is a registry key to force IEx64 to open x64 tabs:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main
Dword TabProcGrowth set to 0
I heard it is considered a security flaw, but it can be accepted if IE is used only with well known legacy web applications.
About IEx64
In the folder
\Program Files (x86)\Internet Explorer
there is the 32 bit version and when you open a page in IEx64 it is actually displayed by an new instance of IEx86. You can check this using task manager, going on detail tab and looking at the application path.
How do you fix this error, "A Java Virtual Machine is requrired to use WebConnect applets.". Java is installed and works fine at the java test page. For this applet it's recommended that you are running Java 6u30 and using Internet Explorer. This was not an issue until moving to Windows 8, it ran perfectly in Windows 7. Does anyone know what I can do to fix this?
http://puu.sh/bbqG5/b2382bc2fb.png
I thought I might add that this is an OpenConnect applet.
Java 8 update 31 and higher doesn't like WebConnect's TLS certificate. If you go in to the Java control panel, set Signed Code Certificate Revocation Check and TLS Certificate Revocation Check to Do Not Check (Not recommended), hit apply, launch the WebConnect applet so Java caches it, and then turn the certificate checks back on it should work.
I have a small company with website, that I'd like to make more interesting by adding there applet. I've prepared it already, and when launched from eclipse it works correctly. However when it is launched as an applet, from website I have a warning that it is not trusted and cannot run it without adding my page to java exceptions.
And here the fun begins. I'd like to have my applet signed in order to allow customers use it without any changes in their java configuration. I'm not planning to make more applets, or any other code that would need signing, so I don't really need to buy expensive certificates.
I've tried self-signing, however according to Java 7 policies it is not enough to run an applet.
I've also wanted to obtain free OpenSource Code certificate from Certum.eu, however the link doesn't work anymore.
CACert is also not an option, as I've heard that it is not trusted in all browsers...
Is there any way I could sign my applet with no harm to my wallet?
The closest thing to an open source certificate is CACert which is however not supported in all browsers. Thawte and Certum seem to have stopped offering free certificates for open source projects. (If you really want to know write an email to Certum why the link is dead)
The only thing I know of currently is GlobalSign.
I am using the Sentinel EMS from Safenet. The local tomcat6 website uses the java applets for their hardware key management. I installed the latest jre7 u45 from java.com. My problem is the java applets are taking too much time to load in an offline environment (applet shows the progress bar about 8 - 10 minutes). When the machine is connected to internet, the applets will load in less than 1 minute. Is there any setting to change the behaviour of java or is it a problem of tomcat?
Note:The safenet people replied it is the problem of jre installation and I need to re-install. I did re install 2-3 times, but no chance to rectify the problem.
I think there is some gap in communication . I am trying to answer your question below, hope this helps
Certificate verification is recommended by JAVA since JRE 7 update 25 for security reasons, you can visit http://www.java.com/en/download/help/revocation_options.xml
There is a Workaround which is not recommended by Java
Open Control Panel
Open Java
Goto Advance Settings
Find "Perform certificate revocation checks on"
Select "Do not check (Not Recommended)"
Click Ok
After this restart all Browser instances
Note :- For Intranet or Localhost you can use this workaround as you know that certificates are valid, but for internet please revert back to default settings
I am from Safenet QA
I have a small applet hosted free of charge on my website. It doesn't desire any special permissions to access the user's computer and the code hasn't changed in 5 years.
In the past few months, I've been getting lots of emails from users complaining about security popups/warnings every time they use the applet. Most recently it appears that there's no way to "permanently allow this applet" anymore, and now warnings that say in the future unsigned applets won't be allowed to run at all.
I've tried self-signing the applet but the warning message is even scarier, stating that the applet will now have unrestricted access to the user's computer. I set the self-signed applet to run in the sandbox but the warning is still scarier than the unsigned applet warning, even though it runs with the same permissions.
What options do we have? I've been thinking about porting it to a different language, such as flash or HTML5. Are those any better? Is there any hope of Oracle backing off and letting unsigned applets live in peace again?
The warning is presented by the browser. Executing Java is disabled in Chrome for security reasons.
Mozilla Firefox
Chrome
Applets needs to be signed. You can use self-signed certificates. Yes once you sign, your applet has privileged access on user's computer to store and even delete files. However the user will have to click on "I Trust" for the applet to run. Self-signed certificate they can add it in their keystore of browser so that next time it will not pop up the warning. However I suggest that you buy code signing certificate from Digicert, Verisign etc so that your website looks professional. Since this is 5 years old code you need to describe to us what the applet code does so that we can think of alternative ways of implementation using different technology.