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androidsynchronized-block

Rejecting class because it failed compile-time verification Android

One of my application suddenly fails on startup, with the following error message :

java.lang.VerifyError: Rejecting class com.sample.BufferManagerImpl because it failed compile-time verification (declaration of 'com.sample.BufferManagerImpl' appears in /data/app/com.sample.myapp-1/base.apk)

It only fails on devices using the ART virtual machine, but not on Dalvik

Solution

  • The issue is due to having a synchronized block inside a try-catch block, for example : 

    try {
    synchronized (mLock) {
        updateState();
    }
} catch (IllegalStateException e) {
}

    Apparently this is not a good practice, but as soon as I change it like this it works : 

    synchronized(mLock) {
    try {
        updateState();
    } catch (IllegalStateException e) {
    }
}