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Windchill System Administrator's Guide

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Property Description<br />

useFullHostNames Specifies if hostnames should be fully qualified for use within the<br />

bootstrap.<br />

Default is false.<br />

verboseInstaller Writes to <strong>System</strong>.out trace messages reflecting class loader reuse,<br />

downloading and installation of new JAR files, and construction of<br />

new bootstrap loaders. The output is short and can be used to confirm<br />

that bootstrap class loaders are being used. This property is used to<br />

debug bootstrapping problems.<br />

Default is false.<br />

verbose loader Writes trace messages to <strong>System</strong>.out reflecting classes and resources<br />

used by bootstrap class loaders. The output can be very large if many<br />

files are loaded. This property is used to debug bootstrapping<br />

problems.<br />

Default is false.<br />

version Specifies the version number for the currently installed bootstrap.<br />

This is the version number used by checkVersion.<br />

Controlling Java <strong>System</strong> Property Settings<br />

As described in the preceding table, you can use the configuration file to control<br />

Java system property settings. Because the bootstrapper is signed and trusted, it<br />

can be used to set system properties before applets are started. The bootstrapper<br />

searches the .wtboot.properties file and uses any properties with names of the<br />

form of setProperty.xxx to set the system property specified by xxx.<br />

Because the bootstrap package can be granted special privileges, it can be used to<br />

set Java system properties before other classes are loaded and initialized. This<br />

makes it useful as a single, consistent mechanism to control your Java system<br />

properties across several Web browsers. This is especially handy when you want<br />

to work around default settings that do not produce the desired results.<br />

Whenever a new JAR class loader is instantiated, the bootstrap properties (from<br />

the .wtboot.properties file) are examined. Java system properties are set when a<br />

property naming convention is triggered. Any bootstrap property that has a name<br />

starting with setProperty results in the setting of a system property using the<br />

remainder of the name. For example, the following bootstrap property sets the<br />

user.language system property:<br />

setProperty.user.language=FR.<br />

Some Java system classes are initialized at load time, using system properties, and<br />

are not normally affected by later changes to the system properties if the class is<br />

already loaded. Therefore, special support has been added to reset the default<br />

2-6 <strong>Windchill</strong> <strong>System</strong> Administrator’s <strong>Guide</strong>

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