[Q] Activity working fine in <=Android 4.1 but died in Android 4.2

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I'm creating an application for reading online novel and it works in Android 2.3.3 - 4.1, but somehow in Android 4.2, one of the Activity (DisplayLightNovelContentActivity) is suddenly died when reading one of the chapter (Sword Art Online:Aria in the Starless Night, original page: baka-tsuki.org/project/index.php?title=Sword_Art_Online:Aria_in_the_Starl ess_Night)

This only happen in Android 4.2 (Galaxy Nexus, Nexus 7, Nexus 10), it is working ok in previous version of Android.

Based on the log file, I'm seeing a lot of process was died by ActivityManager before my application died (lnreader).

These are the log files: pastebin.com/fgXKG1Ew and pastebin.com/dQgEJmik

This is the source code: github.com/calvinaquino/LNReader-Android

Can someone explain to me? Any fundamental changes on how android 4.2/4.2.1 that affected my application?

To replicate the error:
Open chapter from Sword Art Online --> Side Stories --> Aria_in_the_Starless_Night and try to read/scroll, it will closed after few minutes. The log file only show 11-17 04:57:06.946: I/ActivityManager(476): Process com.erakk.lnreader (pid 18764) has died.

Stackoverflow link here: stackoverflow.com/questions/13637524/activity-working-fine-in-android-4-1-but-died-in-android-4-2-activitymanager