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Activating JVMTI features

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Insensitivity
How do I cheat?

Reputation: 0

Joined: 03 May 2015
Posts: 5

Posted: Fri May 26, 2017 4:54 am Post subject: Activating JVMTI features

Hey, I was wondering how do I use the JVMTI features that came with CE 6.4,
I keep getting

Code:

Error:C:\Program Files (x86)\Cheat Engine 6.6\autorun\java.lua:1582: java_find_what_writes only works when the JVMTI agent is launched at start

I tried running the java executable with

Code:

-agentpath:"C:\Program Files (x86)\Cheat Engine 6.6\autorun\dlls\64\CEJVMTI.dll"

Any help is appreciated.

Dark Byte
Site Admin

Reputation: 458

Joined: 09 May 2003
Posts: 25295
Location: The netherlands

Posted: Fri May 26, 2017 10:46 am Post subject:

i can't test it right now, but does your java program launch another program? if so, try using the JAVA_TOOL_OPTIONS environment variable to load the cejvmti _________________ Do not ask me about online cheats. I don't know any and wont help finding them. Like my help? Join me on Patreon so i can keep helping

Insensitivity
How do I cheat?

Reputation: 0

Joined: 03 May 2015
Posts: 5

Posted: Mon May 29, 2017 10:22 am Post subject:

Dark Byte wrote:

i can't test it right now, but does your java program launch another program?
if so, try using the JAVA_TOOL_OPTIONS environment variable to load the cejvmti

I managed to get it working now but I do have a couple of questions,
I want to be able to locate a value (similar to pointers),
This is what I did at first

Code:

local object = java_getObjectHandleToAddress(0x1B17F1F4)
local class = java_getObjectClass(object)
local signature = java_getClassSignature(class)

I got the signature (I replaced the actual name with application)

Code:

Lcom/application/A/I/K/A/B;

Now that I have the signature I can follow up with

Code:

local class = java_findClass(signature)
local objects = java_findAllObjectsFromClass(class)

but how do I input the signature in java_findClass ?
as "Lcom/application/A/I/K/A/B;" or as "Lcom/application/A/I/K/A/B"
I don't really know, both caused CE to crash

the objects variable looks like this:

How do I actually determine which one corresponds to the value I'm looking for, and how do I actually convert the number ( / object ) to an actual Cheat Engine address?
Is there any API docs for the Lua Engine window thingy ?

Thanks in advance :^ )

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