A short list of the commands you use with jdmpview.
The following table shows the jdmpview - quick reference:
Command | Sub-command | Description |
---|---|---|
help | Displays a list of commands or help for a specific command. | |
info | ||
thread | Displays information about Java™ and native threads. | |
system | Displays information about the system the core dump is from. | |
class | Displays the inheritance chain and other data for a given class. | |
proc | Displays threads, command line arguments, environment variables, and shared modules of current process. | |
jitm | Displays JIT and AOT compiled methods and their addresses. | |
lock | Displays a list of available monitors and locked objects. | |
sym | Displays a list of available modules. | |
mmap | Displays a list of all memory segments in the address space. | |
heap | Displays information about all heaps or the specified heap. | |
hexdump | Displays a section of memory in a hexdump-like format. | |
+ | Displays the next section of memory in hexdump-like format. | |
- | Displays the previous section of memory in hexdump-like format. | |
whatis | Displays information about what is stored at the given memory address. | |
find | Searches memory for a given string. | |
findnext | Finds the next instance of the last string passed to "find". | |
findptr | Searches memory for the given pointer. | |
x/ (examine) | Examine works like "x/" in gdb (including use of defaults): passes number of items to display and unit size ('b' for byte (8 bit), 'h' for half word (16 bit), 'w' for word (32 bit), 'g' for giant word (64 bit)) to sub-command (for example x/12bd). | |
J | Displays information about a particular object or all objects of a class. | |
D | Displays the integer at the specified address. | |
X | Displays the hex value of the bytes at the specified address. | |
K | Displays the specified memory section as if it were a stack frame. | |
deadlock | Displays information about deadlocks if there are any set. | |
set logging | Configures logging settings, starts logging, or stops logging. This allows the results of commands to be logged to a file. | |
show logging | Displays the current values of logging settings. | |
cd | Changes the current working directory, used for log files. | |
pwd | Displays the current working directory. | |
quit | Exits the core file viewing tool; any log files that are currently open are closed before the tool exits. |