Java Update: Frequently Asked Questions

Rebooting is sometimes required because installing Windows Installer 2.0 the Microsoft technology used by the Java installer requires rebooting. Note: Java Installer now detects Java enabled Mozilla browsers locked files and will prompt you to close the browser so that a reboot can be avoided.

Rebooting may be necessary for any of the following reasons: If you use Netscape/Mozilla browsers and if they are java-enabled, files of previous jre's may have been locked. Installing Windows Installer 2.0 (Microsoft technology used by the Java installer) sometimes requires rebooting.

Java on Mac OS X is updated incrementally through numerous releases. Therefore, the only way to revert to an earlier Java installation is to reinstall the operating system. The same applies for any other Java-related Software Updates or Developer Previews. For this reason, it is strongly recommended that Developer Previews of Java on Mac OS X be installed on non-critical systems .

There are two ways to accomplish this: If you want to uninstall the Java 2 JRE, use the "Add/Remove Programs" utility in the Microsoft Windows Control Panel (Start->Settings->Control Panel to get to "Add/Remove Programs"). Alternatively, if you still have the original installation program that you used to install the Java 2 JRE, you can double-click on it. This will take you to a screen with Modify and Remove options. Select Remove to uninstall the JRE. Note that you must be connected to the Internet for this to work.

You need to close and restart the Java Control Panel to get the updated Control Panel.

There are two common causes for this. The first is that the JSVGCanvas doesn't know it's a dynamic document. Normally Batik detects this by looking for script elements but when you modify the document from Java it can't tell. So call JSVGCanvas.setDocumentState(JSVGCanvas.ALWAYS_DYNAMIC) before loading the document (with setURI, setDocument, setSVGDocument etc.). The second common reason is that the changes aren't made in the UpdateManager's thread. ...

You may experience a problem installing JRE and may get the following warning message during installation. Note: this is not a problem with the Online Services CD. It appears to be an issue with the JRE software installer which is not produced by the Tax Office. If you get the warning message above, select the 'Retry' button one or more times to continue the installation (in some cases you may need to select 'Retry' many times before the message finally stops appearing and the installation continues). ...

If you installed the JRE through the Custom option but unchecked the browser selections, you may run into this situation. To fix the problem, go to the Browser tab in Java Control Panel and check the browsers that you want to run the newly installed version of Java.

If you installed the JRE through the Custom option but unchecked the browser selections, you may run into this situation. To fix the problem, go to the Browser tab in Java Plug-in Control Panel and check the browsers that you want to run the newly installed version of Java.

If you installed the J2RE through the Custom option but unchecked the browser selections, you may run into this situation. To fix the problem, go to the Browser tab in Java Plug-in Control Panel and check the browsers that you want to run the newly installed version of Java.

You need to close and restart the Java Plug-in Control Panel to get the updated Control Panel.

You need to close and restart the Java Plug-in Control Panel to get the updated Control Panel.