Can jclass and jmethodID be static in code?

Hi
In my program different threads call same C function.
In this C function I am calling JNI APIs.
Here JNI_CreateJavaVM is called only once and same static variable JavaVM is used all the time.
AttachCurrentThread is used to attach current thread and get variable JNIEnv.
During first call to C function, JNI APIs JNI_CreateJavaVM , FindClass and GetStaticMethodID are called and static variables are initialized.
During subsequent operations, API AttachCurrentThread is called and same static variable for method id is passed to CallStaticIntMethod.
Program is running successfully for all threads.
Question) Is it a good way to declare method id variable static and use same variable in all threads?
As JNIEnv variable is not same for all threads...so is it expected to call apis FindClass and GetStaticMethodID after AttachCurrentThread API?

Can jclass and jmethodID be static in code?Yes.

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Problem with static and nonstatic objects in same code?

Hi everyone, I am working on a project and I kept running into an odd problem where my code would compile but when I went to run the code I would get an exception. I finally narrowed my problem down to a small fragment. Here is an example.
class Mut{
static Mut Fido = new Mut();
Mut Sammy = new Mut();
public static void main(String args[]){
This piece of code will compile but when I run it on an WindowsXP machine the JRE tells me there is an exception at line 3. If I change the code to this:
class Mut{
static Mut Fido = new Mut();
static Mut Sammy = new Mut();
public static void main(String args[]){
The code runs fine without any problems. My question is: why can't I create a static object and a nonstatic object in the same class? Is this a certain feature of JAVA I don't understand or is this a blackbox problem with XP? Any help is appreciated. Thanks
Vance

Is the exception stack trace what is displayed in the command-line window? If it is here is what is displayed(This is a lot):
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
at Mut.<init>(Mut.java:3)
C:\>
I don't know if this is everything because the winow won't let me scroll back up to where I enterd "java Mut"
Hope this helps.
Message was edited by: Vance
cell@tech

How can we pass argument to static block of code????

hi ,
My question is we can use static initialization block for having functionality like constructors for initializing static variable ,but we cannot pass arguments to static initialization block then how can I create functionality like parametrized constructors.Whats the alternative shall I use a static method to perform this functionality,since all methods in given class are static and
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jduprez wrote:
Hello Jussi,Salut Jérôme
That's probably a more maintenable design.
However what do you base your remark on - I'm struck by the word obviously?
Is there some design principle from which this advice so naturally ensues that it is obvious ?Yes I read my posting later on and thought about changing it, since it's not necessarily an obvious solution. I was making assumptions that I didn't clarify from the OP.
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Now we just need to have the OP explain his situation a bit better.

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> >
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Can jclass and jmethodID be static in code?

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