StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POjni method called with exception pending getarraylength
text
Body
copied!<p>I use google nexus s's nfc function to develop my program based on RF card. here is my method, I think the problem is the data object</p> <pre><code>unsigned char *CNFCFunList::jbyteArray2Byte(jbyteArray data, int *outLen) { LOGI("jbyteArray2Byte begin"); if (data == NULL) { LOGI("data is NULL"); return 0; } jsize size = m_pJNIEnv->GetArrayLength(data); LOGI("GetArrayLength begin %d",size); //LOGI("GetByteArrayElements begin,data length = %d",env->GetArrayLength(data)); jbyte * olddata = (jbyte*)m_pJNIEnv->GetByteArrayElements(data, 0); jsize oldsize = m_pJNIEnv->GetArrayLength(data); unsigned char* bytearr = (unsigned char*)olddata; *outLen = (int)oldsize; return bytearr; </code></pre> <p>}</p> <p>But I get JNI WARNING: JNI method called with exception pending in Lcom/uai/jni/...;(J[BJI) (GetArrayLength) Pending exception is:</p> <p>also I get the exception </p> <pre><code>I/dalvikvm(5836): java.io.IOException: Transceive failed 11-23 10:19:35.269: I/dalvikvm(5836): at android.nfc.TransceiveResult.getResponseOrThrow(TransceiveResult.java:52) 11-23 10:19:35.269: I/dalvikvm(5836): at android.nfc.tech.BasicTagTechnology.transceive(BasicTagTechnology.java:151) 11-23 10:19:35.269: I/dalvikvm(5836): at android.nfc.tech.IsoDep.transceive(IsoDep.java:172) 11-23 10:19:35.269: I/dalvikvm(5836): at com.uai.jni.libUai.uaiGenKeyPair(Native Method) 11-23 10:19:35.269: I/dalvikvm(5836): at </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload