插件开发找不到类问题

插件类是
com.fchtech.btblock.plugin.BlePlugin
在Eclipse bin下看到class生成

<feature  
            name="ble"  
            value="com.fchtech.btblock.plugin.BlePlugin" />  

        <service  
            name="ble"  
            value="com.fchtech.btlock.plugin.BlePlugin" />

启动的时候BlePlugin类中的onStart方法能够被调用到，会打印 "onStart was called"，表示类肯定存在

用js调用里面的方法就提示找不到类，莫名其妙啊

09-07 14:23:51.088: W/System.err(2556): java.lang.ClassNotFoundException: com.fchtech.btblock.plugin.BlePlugin
09-07 14:23:51.097: W/System.err(2556): at java.lang.Class.classForName(Native Method)
09-07 14:23:51.097: W/System.err(2556): at java.lang.Class.forName(Class.java:309)
09-07 14:23:51.097: W/System.err(2556): at java.lang.Class.forName(Class.java:273)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.feature.b.a(FeatureMgr.java:356)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.feature.b.a(FeatureMgr.java:297)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.feature.b.processEvent(FeatureMgr.java:132)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.common.b.a.dispatchEvent(Core.java:392)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.common.b.b.j.processEvent(WindowMgr.java:117)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.common.b.b.h.exec(DHWebview.java:166)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.common.util.Birdge.exec(Birdge.java:25)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.common.adapter.ui.AdaWebview$3.execute(AdaWebview.java:586)
09-07 14:23:51.097: W/System.err(2556): at io.dcloud.common.adapter.util.MessageHandler$1.handleMessage(MessageHandler.java:23)
09-07 14:23:51.097: W/System.err(2556): at android.os.Handler.dispatchMessage(Handler.java:102)
09-07 14:23:51.097: W/System.err(2556): at android.os.Looper.loop(Looper.java:135)
09-07 14:23:51.098: W/System.err(2556): at android.app.ActivityThread.main(ActivityThread.java:5343)
09-07 14:23:51.098: W/System.err(2556): at java.lang.reflect.Method.invoke(Native Method)
09-07 14:23:51.098: W/System.err(2556): at java.lang.reflect.Method.invoke(Method.java:372)
09-07 14:23:51.098: W/System.err(2556): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
09-07 14:23:51.098: W/System.err(2556): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
09-07 14:23:51.098: W/System.err(2556): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.fchtech.btblock.plugin.BlePlugin" on path: DexPathList[[zip file "/data/app/com.fchtech.btlock-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
09-07 14:23:51.098: W/System.err(2556): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
09-07 14:23:51.098: W/System.err(2556): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-07 14:23:51.098: W/System.err(2556): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
09-07 14:23:51.098: W/System.err(2556): ... 19 more
09-07 14:23:51.098: W/System.err(2556): Suppressed: java.lang.ClassNotFoundException: com.fchtech.btblock.plugin.BlePlugin
09-07 14:23:51.098: W/System.err(2556): at java.lang.Class.classForName(Native Method)
09-07 14:23:51.098: W/System.err(2556): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
09-07 14:23:51.098: W/System.err(2556): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
09-07 14:23:51.098: W/System.err(2556): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
09-07 14:23:51.098: W/System.err(2556): ... 20 more
09-07 14:23:51.098: W/System.err(2556): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

插件类代码：

package com.fchtech.btlock.plugin;  

import java.io.UnsupportedEncodingException;  

import org.json.JSONArray;  

import android.bluetooth.BluetoothAdapter;  
import android.bluetooth.BluetoothDevice;  
import android.bluetooth.BluetoothManager;  
import android.content.Context;  
import android.os.Bundle;  
import android.util.Log;  
import io.dcloud.common.DHInterface.IWebview;  
import io.dcloud.common.DHInterface.StandardFeature;  
import io.dcloud.common.util.JSUtil;  

public class BlePlugin extends StandardFeature {  

    private BluetoothAdapter mBluetoothAdapter;  
    private String CallBackID;  
    private IWebview webview;  
    private BluetoothAdapter.LeScanCallback mLEScanCallback;  

    private String tag = "BlePlugin";  

    public void onStart(Context pContext, Bundle pSavedInstanceState,  
            String[] pRuntimeArgs) {  

        Log.d(tag, "onStart was called");  
        /**  
         * 如果需要在应用启动时进行初始化，可以继承这个方法，并在properties.  
         * xml文件的service节点添加扩展插件的注册即可触发onStart方法  
         * */  
        BluetoothManager manager = (BluetoothManager) pContext  
                .getSystemService(Context.BLUETOOTH_SERVICE);  
        mBluetoothAdapter = manager.getAdapter();  

        if (!mBluetoothAdapter.isEnabled())  
            mBluetoothAdapter.enable();  

        mLEScanCallback = new BluetoothAdapter.LeScanCallback() {  

            @Override  
            public void onLeScan(BluetoothDevice device, int rssi,  
                    byte[] scanRecord) {  
                Log.d(tag, "onLeScan was called");  
                String device_name = parseLockName(scanRecord);  
                int manu_length = manuDataLength(scanRecord);  
                int offset_status = device_name.length()  
                        + scanRecord[device_name.length() + 1] + 1 + 4 + 1;  
                int num_btl = -1;  
                if (manu_length == 0x0B)  
                    num_btl = scanRecord[offset_status + 6 + 1];  

                JSONArray newArray = new JSONArray();  
                newArray.put(device_name);  
                newArray.put(device.getAddress());  
                newArray.put(rssi);  
                newArray.put(num_btl);  
                JSUtil.execCallback(webview, CallBackID, newArray, JSUtil.OK,  
                        true);  
            }  

        };  

    }  

    private String parseLockName(byte[] scanRecord) {  
        int name_length = scanRecord[0];  
        byte[] name = new byte[name_length];  
        System.arraycopy(scanRecord, 1, name, 0, name_length);  
        try {  
            String res = new String(name, "UTF-8");  
            return res;  
        } catch (UnsupportedEncodingException e) {  
            e.printStackTrace();  
            return null;  
        }  
    }  

    private int manuDataLength(byte[] scanRecord) {  
        // device name length  
        int name_length = scanRecord[0];  
        // 020106 length  
        int second_length = scanRecord[name_length + 1];  
        int manu_length = scanRecord[name_length + second_length + 2];  
        return manu_length;  
    };  

    @SuppressWarnings("deprecation")  
    public void StartScan(IWebview pWebview, JSONArray array) {  
        Log.d(tag, "StartScan was called");  
        CallBackID = array.optString(0);  
        webview = pWebview;  
        mBluetoothAdapter.startLeScan(mLEScanCallback);  
    }  

    @SuppressWarnings("deprecation")  
    public String StopScan(IWebview pWebview, JSONArray array) {  
        Log.d(tag, "StopScan was called");  
        mBluetoothAdapter.stopLeScan(mLEScanCallback);  
        return JSUtil.wrapJsVar("ok", true);  
    }  

}

调用JS API：

document.addEventListener("plusready", function() {  
            var _BARCODE = 'ble', B = window.plus.bridge;  
            var ble = {  
                StartScan : function(successCallback, errorCallback) {  
                    mui.toast("startScan enter");  
                    var success = typeof successCallback !== 'function'  
                            ? null  
                            : function(args) {  
                                successCallback(args);  
                            }, fail = typeof errorCallback !== 'function'  
                            ? null  
                            : function(code) {  
                                errorCallback(code);  
                            };  
                    callbackID = B.callbackId(success, fail);  

                    return B.exec(_BARCODE, "StartScan", [callbackID]);  
                },  
                StopScan : function() {  
                    return B.execSync(_BARCODE, "StopScan", null);  
                }  
            };  
            window.plus.ble = ble;  
        }, true);

js调用方法

plus.ble.StartScan(function(result) {  
                var name = result[0];  
                var address = result[1];  
                var rssi = result[2];  
                var numbl = result[3];  
                var li1 = document.createElement('li');   
                li1.setAttribute('class', "mui-table-view-cell");  
                li1.setAttribute('id', address); // mac地址  
                on = name + " " + address;  
                var a1 = document.createElement('a');   
                a1.setAttribute('class', "mui-navigate-right");  
                a1.addEventListener("tap", function() {  
                        });  
                a1.innerText = on;  
                li1.appendChild(a1);  
                vlist1.appendChild(li1);  
            }, function(result) {  
                alert(result);  
            });