It includes three subpanels: As of the JDK 7u10 release, this panel also informs you whether Java is enabled in the browser. This setting is contolled in the Security panel. The About These settings are for network connections. Press the Network Settings There are four choices:. The Update panel, in conjunction with the Java Update Scheduler jusched.
On Microsoft Windows, if both the bit and bit versions of Java are installed, this panel is not available. In this event, you have to launch the Java Control Panel directly from the bit directory command line C: Automatic update is performed on a scheduled basis and it is selected by checking the Check for Updates Automatically check box. If you select automatic update, you can then set the notification via the Notify Me: With notification, you can chose to be notified before an update is downloaded and before it is installed; or you can chose to be notified only before an update is installed i.
The Advanced For daily updates, you can select the time of the day for the update. For weekly updates, you can select the day of the week and the time of the day. For monthly updates, you can select the day of the week and the time of the day. Monthly updates check weekly and notify you within 30 days that an update is available, however, if an update is considered critical you are notified within a week of its release.
You can do manual updates at any time by pressing the Update Now button. This allows you to do immediate, unscheduled updates. The Update Manager coordinates the update process. It is normally transparent to the user but can be viewed in the Processes tab of the Windows Task Manager. Should a user for some reason not want the scheduler to run, it can be killed via End Process button of the Processes tab.
Click the View These settings will be used when a Java application is launched. You may modify the value in each cell by double-clicking it:. This utility searches for unregistered private Java Runtime Environments installed in your computer and adds them to the Java Runtime Versions panel.
When you click the Add button, a new row appears in the Java Runtime Versions panel; however, there are no values for Platform , Product , Path , Runtime Parameters , and Enabled ; you must specify them yourself. There will always be at least one entry. It will be the most recently installed JRE; i. Microsoft Windows will show all JREs installed on a computer. There is no registry so there is no easy way to find the JREs that a user may have installed. Assume you are running on Microsoft Windows with Microsoft Internet Explorer, have first installed version 1.
You can override the Java Plug-in default startup parameters by specifying custom options in the Java Runtime Parameters field. With the exception of setting classpath and cp , the syntax is the same as used with parameters to the java command line invocation. See the java launcher for a full list of command line options:.
Java Control Panel
Setting classpath and cp. The following format should be used for setting classpath and cp in Java Plug-in. To enable assertion support, the following system property must be specified in the Java Runtime Parameters:. Assertion is disabled in Java Plug-in code by default. Since the effect of assertion is determined during Java Plug-in startup, changing assertion settings in the Java Plug-in Control Panel will require a browser restart in order for the new settings to take effect.
Because Java code in Java Plug-in also has built-in assertion, it is possible to enable the assertion in Java Plug-in code through the following:. Tracing is a facility to redirect any output in the Java Console to a trace file. Similar to tracing, logging is a facility to redirect any output in the Java Console to a log file.
Logging can be turned on by enabling the property javaplugin. Furthermore, if you do not want to overwrite the trace and log files each session, you can set the property:.
If the property is set to false , then trace and log files will be uniquely named for each session. If the default trace and log file names are used, then the files would be named as follows. Tracing and logging set through the Control Panel will take effect when the Plug-in is launched, but changes made through the Control Panel while a Plug-in is running will have no effect until a restart. When a connection is made by an applet to a server and the server doesn't respond properly, the applet may appear to hang and may also cause the browser to hang, since by default there is no network connection timeout.
To avoid this problem, Java Plug-in 1. You can override this setting in the Java Runtime Parameters:. Java Plug-in does not set sun. If you want to set it, do so through the Java Runtime Parameters as shown above. These properties specify, respectively, the default connect and read timeout values for the protocol handlers used by java.
The default value set by the protocol handlers is -1 , which means there is no timeout set. For example, for http connections it is the timeout when establishing the connection to the http server. For ftp connections it is the timeout when establishing the connection to ftp servers.
For the official description of these properties, see Networking Properties. De-selecting the Enable Java content in the browser button, which is selected by default, will prevent any Java application from running in the browser.
When the Enable Java content in the browser option is selected, the Security Level slider becomes available. As the security level is increased, more restrictions are placed on allowing an application to run, and stronger warnings are issued to the user.
Very High - Applications that are signed with a valid certificate that is located in the Signer CA keystore, and include the Permissions attribute in the manifest for the main JAR file are allowed to run with security prompts. All other applications are blocked. High - Applications that are signed with a valid or expired certificate that is located in the Signer CA keystore, and include the Permissions attribute in the manifest for the main JAR file are allowed to run with security prompts.
Applications are also allowed to run with security prompts when the revocation status of the certificate cannot be checked. See Rich Internet Application Deployment Process for information on how the decision to run or block an application is made. The Security Level setting affects plug-in applets, Java Web Start applications, embedded JavaFX applications, and access to the native deployment toolkit plug-ins.
How do I clear Java cache on my Mac?
This setting does not affect stand alone Java applications. Comment 16 garbi Comment 17 garbi Comment 18 garbi Comment 19 garbi Comment 20 garbi Comment 21 garbi Comment 22 Tomas Danek Comment 23 Tomas Danek Comment 24 garbi Comment 25 Tomas Danek Comment 26 Stanislav Aubrecht Comment 27 Stanislav Aubrecht Comment 28 Antonin Nebuzelsky Comment 29 Stanislav Aubrecht Comment 30 Quality Engineering Sponsored by.
P2 vote. Exception Report:. Attachments Screenshot after launch blank window View All Add an attachment proposed patch, testcase, etc. Almost once every two launches, I get one of the following UI problems: Sad sad sad This issue must be fixed on JDK side: Can you please specify what do you mean by ' no way to get out of it'? It should be possible to exit fullscreen by moving mouse on top making menu appear and clicking button like in other native apps?
I've noticed that rarely is fullscreen button really missing. This is valid random issue from my POV. Product Version: NetBeans IDE 7.
Mac OS X version Screenshot is not helpful, we need to be sure it's deadlock. See my comment 2. Any idea on how to proceed? Does it work? Very often? From time to time? I've seen this on my MacBook once or twice, so information from you can be very helpful. I tried to launch NB via the console using both: Hereafter, I put the trace I get in the console. And to answer your question, yes this "blank window" happens quite often on my laptop MacBook Pro. To solve it, I have to go throughout an arbitrarily long sequence of quit, reset windows, launch, quit, reset windows, etc. And now the trace: The only idea I have now is that it can be something similar like http: Can you please try to switch off "automatic graphic switching" in System preferences Energy saver, and see if you still can reproduce this problem?
It is however still possible to switch to another application but NB seems to be stuck in full screen mode. Quitting NB seems to be the only option to make it go out of fullscreen mode.