1 files changed, 3 insertions, 0 deletions
diff --git a/3rdParty/Unbound/src/android/dns/dns_android.cpp b/3rdParty/Unbound/src/android/dns/dns_android.cpp
index 4b1c368..d7cfa15 100644
--- a/3rdParty/Unbound/src/android/dns/dns_android.cpp
+++ b/3rdParty/Unbound/src/android/dns/dns_android.cpp
@@ -12,18 +12,21 @@
 JavaVM* javaVM = 0;
 
 JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* /*aReserved*/) {
   javaVM = vm;
   return JNI_VERSION_1_6;
 }
 
 std::vector<std::string> get_servers() {
   std::vector<std::string> servers;
+  if (javaVM == 0) {
+    return servers;
+  }
 
   JNIEnv* env = 0;
   int result = javaVM->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
   if (result == JNI_EDETACHED) {
     if (javaVM->AttachCurrentThread(&env, 0) != 0) {
       return servers;
     }
   } else if (result != JNI_OK) {
     return servers;