How to track which field raises a NullPointerException when inserting a custom field into the Contacts data table?

Question

I get the complete exception:

07-16 19:19:17.244: ERROR/DatabaseUtils(151): java.lang.NullPointerException
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at com.android.providers.contacts.ContactsProvider2.insertData(ContactsProvider2.java:3069)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at com.android.providers.contacts.ContactsProvider2.insertInTransaction(ContactsProvider2.java:2930)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at com.android.providers.contacts.CContactsProvider2.insertInTransaction(CContactsProvider2.java:156)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at com.android.providers.contacts.HtcContactsProvider2.insertInTransaction(HtcContactsProvider2.java:1281)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at com.android.providers.contacts.SQLiteContentProvider.insert(SQLiteContentProvider.java:90)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at com.android.providers.contacts.ContactsProvider2.insert(ContactsProvider2.java:2737)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at android.content.ContentProvider$Transport.insert(ContentProvider.java:150)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:170)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at android.os.Binder.execTransact(Binder.java:287)
07-16 19:19:17.244: ERROR/DatabaseUtils(151):     at dalvik.system.NativeStart.run(Native Method)

The code I use is:

public void saveFormality() {
    ContentValues values = new ContentValues();
    values.put(Data.DATA1, this.getFormality() ? "1" : "0");
    saveDataWithMimeType(clsContacts.MIMETYPE_FORMALITY, values, this.getId());
}


private void saveDataWithMimeType(String mimetype, ContentValues values, String contactid) {
    try {
        int mod = ctx.getContentResolver().update(
                Data.CONTENT_URI,
                values,
                ContactsContract.Data.RAW_CONTACT_ID + "=" + contactid + " AND " + ContactsContract.Data.MIMETYPE + "= '"
                        + mimetype + "'", null);

        if (mod == 0) {
            values.put(Data.RAW_CONTACT_ID, contactid);
            values.put(Data.MIMETYPE, mimetype);
            // this is where exception occurs
            Uri u=ctx.getContentResolver().insert(Data.CONTENT_URI, values);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

This only happens on the phone, not in the emulator. All fields have been marked, and none of them are null. What could be the reason?

Answer 1

I found this out using the huge process of digging up raw data to manually add contacts, and then trial and error to find out what data the content provider insisted on. It is quite simple:

Data.Type ( "data2" ). , HTC Contacts ContentProvider NullPointerException. Android Contacts ContentProvider , TYPE_OTHER.

HTC () ContentProvider Contacts, , (b) . HtcContactsProvider2.java, , .

Answer 2

ContactsProvider2.java:3069 , . , , , null.