/usr/lib/x86_64-linux-gnu/radare2/0.9.6/magic/java is in libradare2-0.9.6 0.9.6-3.1+deb8u1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | # $OpenBSD: java,v 1.5 2009/04/24 18:54:34 chl Exp $
#------------------------------------------------------------
# Java ByteCode and Mach-O binaries (e.g., Mac OS X) use the
# same magic number, 0xcafebabe, so they are both handled
# in the entry called "cafebabe".
#------------------------------------------------------------
# Java serialization
# From Martin Pool (m.pool@pharos.com.au)
0 beshort 0xaced Java serialization data
>2 beshort >0x0004 \b, version %d
0 belong 0xfeedfeed Java KeyStore
!:mime application/x-java-keystore
0 belong 0xcececece Java JCE KeyStore
!:mime application/x-java-jce-keystore
# Dalvik .dex format. http://retrodev.com/android/dexformat.html
# From <mkf@google.com> "Mike Fleming"
0 string dex\n
>0 regex dex\n[0-9][0-9][0-9]\0 Dalvik dex file
>4 string >000 version %s
0 string dey\n
>0 regex dey\n[0-9][0-9][0-9]\0 Dalvik dex file (optimized for host)
>4 string >000 version %s
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