類似這種報錯

12-16 19:16:22.541 30891 30891 W System.err: java.lang.VerifyError: Verifier rejected class com.dangdang.reader.personal.DataHelper: int com.dangdang.reader.personal.DataHelper.a(com.dangdang.reader.domain.ShelfBook, java.lang.String, android.app.Activity, int) failed to verify: int com.dangdang.reader.personal.DataHelper.a(com.dangdang.reader.domain.ShelfBook, java.lang.String, android.app.Activity, int): [0x20] 'this' argument 'Precise Reference: java.lang.String' not instance of 'Precise Reference: com.dangdang.reader.personal.DataHelper' (declaration of 'com.dangdang.reader.personal.DataHelper' appears in /data/app/com.dangdang.reader-1/base.apk)
 

很可能是以下程式碼中.locals 11這個數量不對，或者

    const-string v9, "class1.reader/personal/DataHelper$a1 is run"
    const-string v10, "ok"

暫存器的使用有問題，比如佔用了原始程式需要用到的暫存器

.method private a(Lcom/dangdang/reader/domain/ShelfBook;Ljava/lang/String;Landroid/app/Activity;I)I
    .locals 11

    .prologue
	const-string v9, "class1.reader/personal/DataHelper$a1 is run"
	const-string v10, "ok"
	invoke-static {v9,v10}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I
    const v9, 0x7f0a0164

    const/4 v8, 0x1

    const/4 v1, -0x1