Modifying Java Component Settings

Properties for JVM and JDK components are displayed on the Java Virtual Machine page of the Options dialog box, shown in Figure 117. When you start Stylus Studio, it automatically detects the Java Virtual Machine (JVM) and compiler components installed on your machine and sets the properties for these components accordingly.

Figure 117. Reset Java Properties in the Options Dialog Box

Once these properties have values, Stylus Studio uses them until you either

  • Use the auto detect feature to change them. You might want use auto detect if you have been using Stylus Studio with the J2SE 1.4.2 and later install the J2SE 5.0, for example.
  • Change them manually. You can manually specify that Stylus Studio use a different jvm.dll or javac.exe, for example.

How Auto Detect Works

The auto detect feature prompts Stylus Studio to fetch the settings from the registry setting Current Version under the key HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment to find the version, and then adds the version number to that same location to get the settings.

Note that if you manually change your settings to use another local version of the JDK, it may fail to load properly unless you also point the Current Version setting to match. This is because the JVM itself might try to load DLLs from the location of the current version instead of the location you specify.

About JVM Parameters

As a rule, you should never change the default values in the Parameter fields for the JVM or the External JVM. This option exists to accommodate unusual configurations. In such situations, Stylus Studio Technical Support might instruct you to change this value.

About JDK Parameters

The -g parameter instructs the compiler to add debugging information to the generated .class file; it is set by default.

How to Modify Java Component Properties

To modify Java component properties:
1. Start Stylus Studio if it is not already running, and select Tools > Options from the menu.

The Options dialog box appears.

2. Select General > Application Settings > Java Virtual Machine.
3. If you want Stylus Studio to update Java component properties to the latest installed version on you machine, click the Auto detect button.

Otherwise, make the changes manually.

4. Click OK.
5. If you made changes to any JVM properties, you need to restart Stylus Studio for those changes to take effect.
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