Defining the Client Environment - Java Deployment with JNLP and WebStart - page 307

Security Permission Description

Listen to localhost:1024

java.net.SocketPermission

(Only) read property: java.version

java.util.PropertyPermission

Read java.vendor

java.util.PropertyPermission

Read java.vendor.url

java.util.PropertyPermission

Read java.class.version

java.util.PropertyPermission

Read os.version

java.util.PropertyPermission

Read os.name

java.util.PropertyPermission

Read os.arch

java.util.PropertyPermission

Read path.separator

java.util.PropertyPermission

Read file.separator

java.util.PropertyPermission

Read line.separator

java.util.PropertyPermission

Read java.specification.vendor

java.util.PropertyPermission

Read java.specification.name

java.util.PropertyPermission

Read java.specification.version

java.util.PropertyPermission

Read java.vm.specification.name

java.util.PropertyPermission

Read java.vm.specification.vendor

java.util.PropertyPermission

Read java.vm.version

java.util.PropertyPermission

Read java.vm.vendor

java.util.PropertyPermission

Read java.vm.name

java.util.PropertyPermission

java.awt.AWTPermission showWindowWithoutWarningBanner

Stop a thread

java.lang.RuntimePermission

Properties not listed here are not allowed for this security level.

All-Permissions Trusted Environment
Because there are no limitations to the All-Permissions trusted environment, the JNLP Client
will prompt the user with a warning dialog box at application startup, like the one shown in
Figure 9.4. JNLP Clients always warn users when a signed application requests unrestricted
access to the local environment.

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J2EE Application Client Trusted Environment
The J2EE Application Client Trusted Environment is in-between the first two security modali-
ties. The allowed permissions are listed in the following table.