Delete local references to avoid reference table overflow.

Change-Id: I2218b97647e381bfe6d329b1b6134bb76c1832b6
diff --git a/core/jni/android_server_BluetoothA2dpService.cpp b/core/jni/android_server_BluetoothA2dpService.cpp
index cf53a06..8c795af 100644
--- a/core/jni/android_server_BluetoothA2dpService.cpp
+++ b/core/jni/android_server_BluetoothA2dpService.cpp
@@ -256,10 +256,12 @@
                     parse_property_change(env, msg, (Properties *)&sink_properties,
                                 sizeof(sink_properties) / sizeof(Properties));
         const char *c_path = dbus_message_get_path(msg);
+        jstring path = env->NewStringUTF(c_path);
         env->CallVoidMethod(nat->me,
                             method_onSinkPropertyChanged,
-                            env->NewStringUTF(c_path),
+                            path,
                             str_array);
+        env->DeleteLocalRef(path);
         result = DBUS_HANDLER_RESULT_HANDLED;
         return result;
     } else {
@@ -292,10 +294,13 @@
         result = JNI_FALSE;
     }
     LOGV("... Device Path = %s, result = %d", path, result);
+
+    jstring jPath = env->NewStringUTF(path);
     env->CallVoidMethod(nat->me,
                         method_onConnectSinkResult,
-                        env->NewStringUTF(path),
+                        jPath,
                         result);
+    env->DeleteLocalRef(jPath);
     free(user);
 }
 
diff --git a/core/jni/android_server_BluetoothEventLoop.cpp b/core/jni/android_server_BluetoothEventLoop.cpp
index 259cc01..01b6711 100644
--- a/core/jni/android_server_BluetoothEventLoop.cpp
+++ b/core/jni/android_server_BluetoothEventLoop.cpp
@@ -1061,6 +1061,8 @@
     DBusError err;
     dbus_error_init(&err);
     JNIEnv *env;
+    jstring addr;
+
     nat->vm->GetEnv((void**)&env, nat->envVer);
 
     LOGV("... address = %s", address);
@@ -1109,10 +1111,12 @@
         }
     }
 
+    addr = env->NewStringUTF(address);
     env->CallVoidMethod(nat->me,
                         method_onCreatePairedDeviceResult,
-                        env->NewStringUTF(address),
+                        addr,
                         result);
+    env->DeleteLocalRef(addr);
 done:
     dbus_error_free(&err);
     free(user);
@@ -1139,10 +1143,12 @@
         }
         LOG_AND_FREE_DBUS_ERROR(&err);
     }
+    jstring addr = env->NewStringUTF(address);
     env->CallVoidMethod(nat->me,
                         method_onCreateDeviceResult,
-                        env->NewStringUTF(address),
+                        addr,
                         result);
+    env->DeleteLocalRef(addr);
     free(user);
 }
 
@@ -1163,10 +1169,12 @@
         LOG_AND_FREE_DBUS_ERROR(&err);
         result = JNI_FALSE;
     }
+    jstring jPath = env->NewStringUTF(path);
     env->CallVoidMethod(nat->me,
                         method_onDiscoverServicesResult,
-                        env->NewStringUTF(path),
+                        jPath,
                         result);
+    env->DeleteLocalRef(jPath);
     free(user);
 }
 
@@ -1194,10 +1202,12 @@
     }
 
 done:
+    jstring addr = env->NewStringUTF(address);
     env->CallVoidMethod(nat->me,
                         method_onGetDeviceServiceChannelResult,
-                        env->NewStringUTF(address),
+                        addr,
                         channel);
+    env->DeleteLocalRef(addr);
     free(user);
 }
 #endif