Multiple SIGABRT crash reports during decoding phase

[jisung]

We have about 500 crash reports per month, which are difficult to reproduce. Can you please review the attached stacktrace and throw Java Exception instead of crash? Thank you in advance.

SIGABRT Abort program 
    /apex/com.android.runtime/lib/bionic/libc.so:392370 abort
    /apex/com.android.runtime/lib/bionic/libc.so:393739 __assert2
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:208563 0xaa38eeb3
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:208821 0xaa38efb5
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:202099 0xaa38d573
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:200227 __cxa_get_exception_ptr
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:200171 __cxa_throw
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:192599 operator new(unsigned int)
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:105311 0xaa375b5f
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:105215 apng_drawable::ApngFrame::ApngFrame(unsigned int, unsigned int)
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:98233 apng_drawable::ApngDecoder::decode(std::__ndk1::unique_ptr<apng_drawable::StreamSource, std::__ndk1::default_delete<apng_drawable::StreamSource> >, int&)
    /data/app/com.photo.app-u2VLzjwd7M7a7x8Ch8Rd4A==/lib/arm/libapng-drawable.so:100223 Java_com_linecorp_apng_decoder_ApngDecoderJni_decode