Sun Studio 12: Debugging a Program With dbx

Environment Variables for Java Debugging

The following environment variables are specific to debugging a Java application with dbx. You can set the JAVASRCPATH, CLASSPATHX, and jvm_invocation environment variables at a shell prompt before starting dbx. The setting of the jdbx_mode environment variable changes as you are debugging your application. You can change its setting with the jon command (jon Command) and the joff command (see joff Command).

`jdbx_mode`	The `jdbx_mode` environment variable can have the following settings: `java`, `jni,` or `native`. For descriptions of the Java, JNI, and native modes, and how and when the mode changes, see `dbx` Modes for Debugging Java Code. Default: `java`.
`JAVASRCPATH`	You can use the `JAVASRCPATH` environment variable to specify the directories in which `dbx` should look for Java source files. This variable is useful when the Java sources files are not in the same directory as the `.class` or `.jar` files. See Specifying the Location of Your Java Source Files for more information.
`CLASSPATHX`	The `CLASSPATHX` environment variable lets you specify to `dbx` a path for Java class files that are loaded by custom class loaders. For more information, see Specifying a Path for Class Files That Use Custom Class Loaders.
`jvm_invocation`	The `jvm_invocation` environment variable lets you customize the way the JVM^TM software is started. (The terms “Java virtual machine” and “JVM” mean a virtual machine for the Java platform.) For more information, see Customizing Startup of the JVM Software.