JNI DETECTED ERROR IN APPLICATION: obj == null'

[farimarwat]

Build fingerprint: 'google/sdk_google_phone_x86/generic_x86:7.0/NYC/6696031:userdebug/dev-keys'
Revision: '0'
ABI: 'x86'
pid: 4359, tid: 4359, name: test.com >>> com.test.com <<<
signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
Abort message: 'art/runtime/java_vm_ext.cc:470] JNI DETECTED ERROR IN APPLICATION: obj == null'
eax 00000000 ebx 00001107 ecx 00001107 edx 00000006
esi bfc4ea0c edi bfc4e8a0
xcs 00000073 xds 0000007b xes 0000007b xfs 0000003b xss 0000007b
eip a9482424 ebp bfc4e920 esp bfc4e838 flags 00000282

backtrace:
#00 pc ffffe424 [vdso:a9482000] (__kernel_vsyscall+16)
#1 pc 0007eb78 /system/bin/linker (__dl_syscall+40)
#2 pc 00004681 /system/bin/linker (__dl__ZL24debuggerd_signal_handleriP7siginfoPv+1201)
#3 pc 0078a844 /data/local/tmp/re.frida.server/frida-agent-32.so (offset 0x61e000)

//Function to hoo:
private final void verifySafety(String str) {
h.h.a.d.o.e.a(this).K(generateNonce(), Constants.SAFETY).j(this, new m0(this, str)).g(this, p0.a);
}

//Javascript:
videoActivity.verifySafety.implementation = function(str){
console.log("testing");
};

[yotamN]

Could you please describe what you were trying to do, with which APK and on which platform?