native层出现崩溃

[HelloFish-2016]

03-02 14:25:40.144 F/(21828): java_vm_ext.cc:570] JNI DETECTED ERROR IN APPLICATION: GetStringUTFChars received NULL jstring
03-02 14:25:40.144 F/(21828): java_vm_ext.cc:570] in call to GetStringUTFChars
03-02 14:25:40.144 F/(21828): java_vm_ext.cc:570] from int com.aliyun.sls.android.producer.LogProducerClient.log_producer_client_add_log_with_len(long, long, int, java.lang.String[], java.lang.String[], int)

但是我看addlog源码里这里面都有判null的
int i = 0;
for (Map.Entry<String, String> entry : contents.entrySet()) {
String key = entry.getKey();
key = key == null ? "" : key;
keyArray[i] = key;

        String value = entry.getValue();
        value = value == null ? "" : value;
        valueArray[i] = value;

        i++;
    }

麻烦看下是啥情况
使用的sdk版本是2.6.2

[cnbleu]

升级到 2.6.11 版本