java.lang.RuntimeException: can not merge I and Z

[ajinabraham]

classes-errors.zip : https://mega.co.nz/#!qkxwTQTb!9kE-_dhSV1-zREysVsSp4ERHFynrVTWUAU_HijsY4rA

[pxb1988]

java.lang.RuntimeException: can not merge I and Z on following method

.method public b(Z)V
    .registers 4
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    invoke-static { v0 }, Lcom/twitter/android/TweetActivity;->b(Lcom/twitter/android/TweetActivity;)Z
    move-result v0
    if-nez v0, :L0
    if-eqz p1, :L0
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    const v1, 2131624898
    invoke-virtual { v0, v1 }, Lcom/twitter/android/TweetActivity;->findViewById(I)Landroid/view/View;
    move-result-object v0
    const/4 v1, 0
    invoke-virtual { v0, v1 }, Landroid/view/View;->setVisibility(I)V
    :L0
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    invoke-static { v0, p1 }, Lcom/twitter/android/TweetActivity;->a(Lcom/twitter/android/TweetActivity;I)Z
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    iget-object v0, v0, Lcom/twitter/android/TweetActivity;->g:Landroid/widget/Button;
    iget-object v1, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    iget-object v1, v1, Lcom/twitter/android/TweetActivity;->e:Lcom/twitter/android/composer/TweetBox;
    invoke-virtual { v1 }, Lcom/twitter/android/composer/TweetBox;->j()Z
    move-result v1
    invoke-virtual { v0, v1 }, Landroid/widget/Button;->setEnabled(Z)V
    return-void
.end method

notice the line invoke-static { v0, p1 }, Lcom/twitter/android/TweetActivity;->a(Lcom/twitter/android/TweetActivity;I)Z.
p1 is defined as Z (boolean) but used as I(int)

the problem is caused by strict type calculation, because in java syntaxt, a boolean can not assign to an inteager. so dex2jar forbid merge type Z and I. It is simple to fix

• modify the dex by hand and add the following code before invoke-static { v0, p1 }, Lcom/twitter/android/TweetActivity;->a(Lcom/twitter/android/TweetActivity;I)Z

if-eqz p1, :LZERO
    const p1, 1
    goto :Lend
:LZERO
    const p1, 0
:Lend

• OR modify the dex2jar code. return Type I when merge I and Z at com.googlecode.dex2jar.ir.TypeClass.merge(TypeClass.java:100)

merge to #10

[Dhoundiyal]

got same error dex2jar 2.0

[amitfegade121]

java.lang.RuntimeException: can not merge I and Z on following method

.method public b(Z)V
    .registers 4
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    invoke-static { v0 }, Lcom/twitter/android/TweetActivity;->b(Lcom/twitter/android/TweetActivity;)Z
    move-result v0
    if-nez v0, :L0
    if-eqz p1, :L0
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    const v1, 2131624898
    invoke-virtual { v0, v1 }, Lcom/twitter/android/TweetActivity;->findViewById(I)Landroid/view/View;
    move-result-object v0
    const/4 v1, 0
    invoke-virtual { v0, v1 }, Landroid/view/View;->setVisibility(I)V
    :L0
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    invoke-static { v0, p1 }, Lcom/twitter/android/TweetActivity;->a(Lcom/twitter/android/TweetActivity;I)Z
    iget-object v0, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    iget-object v0, v0, Lcom/twitter/android/TweetActivity;->g:Landroid/widget/Button;
    iget-object v1, p0, Lcom/twitter/android/vj;->a:Lcom/twitter/android/TweetActivity;
    iget-object v1, v1, Lcom/twitter/android/TweetActivity;->e:Lcom/twitter/android/composer/TweetBox;
    invoke-virtual { v1 }, Lcom/twitter/android/composer/TweetBox;->j()Z
    move-result v1
    invoke-virtual { v0, v1 }, Landroid/widget/Button;->setEnabled(Z)V
    return-void
.end method

notice the line invoke-static { v0, p1 }, Lcom/twitter/android/TweetActivity;->a(Lcom/twitter/android/TweetActivity;I)Z.
p1 is defined as Z (boolean) but used as I(int)

the problem is caused by strict type calculation, because in java syntaxt, a boolean can not assign to an inteager. so dex2jar forbid merge type Z and I. It is simple to fix

• modify the dex by hand and add the following code before invoke-static { v0, p1 }, Lcom/twitter/android/TweetActivity;->a(Lcom/twitter/android/TweetActivity;I)Z

if-eqz p1, :LZERO
    const p1, 1
    goto :Lend
:LZERO
    const p1, 0
:Lend

• OR modify the dex2jar code. return Type I when merge I and Z at com.googlecode.dex2jar.ir.TypeClass.merge(TypeClass.java:100)

merge to #10

Can you tell us please where to modify or make changes?
Thanks in advanced.

[Nirvanchik]

Got the same error when decoding my app. Mostly errors come from Google support-lib code.
Why not make a command-line flag to ignore this error?
Manipulation with bytecode is a hard job not worthing to spend time to (especially when my app has 72 errors of this type).