Options for tracing Java runtime

To display a summary of the command line options in the SDK, enter emulator -help or SDK -help. The command displays a list of the options that work with the executable in the command window. The -help option must be the only option in a command.

Trace output displays within the output window of an IDE or within the SDK DOS Console when you run the SDK as a standalone application. For information on how to set up the tracing, see Setting MIDP tracing and speed options.

The following tracing options apply only to Java output:

Option

Prints

Use with

-Xverbose:allocation

Memory allocation trace

emulator.exe

-Xverbose:class

Class loading trace

emulator.exe

-Xverbose:gc

Garbage collection trace

emulator.exe

-Xverbose:gcverbose

Verbose garbage collection trace

emulator.exe

-Xverbose:threading

All threads in the system

emulator.exe

-Xverbose:classverbose

Verbose class loading trace

emulator.exe

-Xverbose:verifier

Verifier trace

emulator.exe

-Xverbose:stackmaps

Stackmap trace

emulator.exe

-Xverbose:bytecodes

Byte code trace

emulator.exe

-Xverbose:method

Method trace call

emulator.exe

-Xverbose:methodcallsverbose

Verbose method call trace

emulator.exe

-Xverbose:stackchunks

Stackchunk trace

emulator.exe

-Xverbose:frames

Frame trace

emulator.exe

-Xverbose:exceptions

Exception trace

emulator.exe

-Xverbose:events

Event trace

emulator.exe

-Xverbose:monitors

Monitor trace

emulator.exe

-Xverbose:networking

Networking trace

emulator.exe

-Xverbose: -Xverbose:all

Enable all Java traces

emulator.exe