Re: JNI and JVM Version
Re: JNI and JVM Version
- Subject: Re: JNI and JVM Version
- From: Greg Herlihy <email@hidden>
- Date: Wed, 22 Feb 2006 20:34:51 -0800
- Thread-topic: JNI and JVM Version
I would suggest asking this question on the java-dev mailing list, whose
archive can be found here: http://lists.apple.com/archives/Java-dev/2006
Greg
On 2/22/06 3:28 PM, "email@hidden" <email@hidden>
wrote:
> Hi all,
>
> So I'm writing an application in Obj-C Cocoa, and would like to utilize a set
> of classes created using Java 1.5's generics and other assorted funities.
>
> The default jre being used in Tiger is 1.4.2 and I don't want to change it at
> the system level.
>
> Eventually I want to distribute my application to other folks, so I don't want
> to hack any symbolic links or anything in the system. Is there a way to
> declare the jvm version I want to use either through the initial setup of JVM
> or some other thing I can do programmatically or through configuration?
>
> Here's a snippet from when I create the jvm...
>
> JavaVMOption options[1];
> JavaVMInitArgs vm_args;
> long status;
> options[0].optionString = "-Djava.class.path=/Users/Me/Jars/Employee.jar";
> memset(&vm_args, 0, sizeof(vm_args));
> vm_args.version = JNI_VERSION_1_2;
> vm_args.nOptions = 1;
> vm_args.options = options;
> status = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);
> if (status != JNI_ERR) {
> NSLog(@"JVM CREATED");
> }
>
> And here is when I attempt to retrieve a class reference from the jvm I get
> errors.
>
> NSString *javaClassName = @"org/ph/TestClass";
> const char *temp = [javaClassName cString];
> jObjectClass = (*env)->FindClass(env, temp);
>
>
> Thanks in advance for any assistance.
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