 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000] JNI DETECTED ERROR IN APPLICATION: java_class == null 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]     in call to GetMethodID 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]     from com.shockwave.pdfium.a.a com.shockwave.pdfium.PdfiumCore.nativeGetPageSizeByIndex(long, int, int) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000] "AsyncTask #0" prio=0 tid=00 Runnable 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   | group="main" sCount=0 dsCount=0 flags=0 obj=0x00e0b0b0 self=0xe0000a00 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   | sysTid=00000 nice=00 cgrp=default sched=0/0 handle=0xcab00000 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   | state=R schedstat=( 0 0 0 ) utm=0 stm=0 core=0 HZ=000 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   | stack=0xcaa00000-0xcaa00000 stackSize=0000KB 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   | held mutexes= "mutator lock"(shared held) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 000eedcf  /system/lib/libart.so (art::DumpNativeStack(std::__0::basic_ostream<char, std::__0::char_traits<char>>&, int, BacktraceMap*, char const*, art::ArtMethod*, void*)+000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 000000db  /system/lib/libart.so (art::Thread::DumpStack(std::__0::basic_ostream<char, std::__0::char_traits<char>>&, bool, BacktraceMap*, bool) const+000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 00000a00  /system/lib/libart.so (art::Thread::Dump(std::__0::basic_ostream<char, std::__0::char_traits<char>>&, bool, BacktraceMap*, bool) const+00) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 0000000f  /system/lib/libart.so (art::JavaVMExt::JniAbort(char const*, char const*)+000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 00000c0b  /system/lib/libart.so (art::JavaVMExt::JniAbortF(char const*, char const*, ...)+00) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 00000c0b  /system/lib/libart.so (art::JNI::GetMethodID(_JNIEnv*, _jclass*, char const*, char const*)+000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 000000d0  /data/app/mx.com.publicacioneselfaro.himnia_musica-heck0rZ0EQdvqxG_0m-dkA==/lib/arm/libjniPdfium.so (Java_com_shockwave_pdfium_PdfiumCore_nativeGetPageSizeByIndex+000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   native: #00 pc 0000000d  /data/app/mx.com.publicacioneselfaro.himnia_musica-heck0rZ0EQdvqxG_0m-dkA==/oat/arm/base.odex (Java_com_shockwave_pdfium_PdfiumCore_nativeGetPageSizeByIndex__JII+000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at com.shockwave.pdfium.PdfiumCore.nativeGetPageSizeByIndex(Native method) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at com.shockwave.pdfium.PdfiumCore.b(:000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   - locked <0x0d00c000> (a java.lang.Object) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at c.a.a.a.i.b(:00) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at c.a.a.a.i.<init>(:00) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at c.a.a.a.c.a(:00) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at c.a.a.a.c.doInBackground(:00) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at android.os.AsyncTask$0.call(AsyncTask.java:000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at java.util.concurrent.FutureTask.run(FutureTask.java:000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:0000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]   at java.lang.Thread.run(Thread.java:000) 0000-00-00 00:00:00.000 00000-00000/? A/zygote: java_vm_ext.cc:000]  0000-00-00 00:00:00.000 00000-00000/? A/zygote: runtime.cc:000] 