error: base operand of ‘->’ has non-pointer type ‘JNIEnv’

Question

#include 
#include 

 JNIEnv* create_vm() {
    JavaVM* jvm;
    JNIEnv* env;
    JavaVMInitArgs args;
    JavaVMOption options[1];

             


        

Answer 1

I am putting the work around found on other SO posts.. I used straight forwardly this - " gcc -g -I /usr/lib/jvm/java-6-sun-1.6.0.26/include -I /usr/lib/jvm/java-6-sun-1.6.0.26/include/linux -L /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/i386/server -ljvm CallJVM.c and a.out was created. Then I need to link it with libjvm.so present in server folder as mentioned in post.

A very beautiful explanation has been put up here

Answer 2

I noticed the different ways of implementing in C and C++ but I think I am writing it correctly.

You are using the C variant, but are compiling with g++, which invokes the C++ compiler (even if your source file has a .c extension).

Either change the C variants like

(*env)->FindClass(env, ...)

to the C++ variants, like

env->FindClass(...)

or switch your compiler to gcc to compile the source as C code.