Bug#673276: lintian: please add check to detect incompatible java bytecode versions
Package: lintian
Version: 2.5.7
Severity: normal
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Currently Debian and Ubuntu ship three versions of Java - 5, 6 and 7.
Its possible to get into the situation where bytecode is generated from source
code that is not backwards compatible - javac by default will generate bytecode
that is only forwards compatible.
To ensure that java libraries are compatible with all versions of Java in
the archive, it would be great to have a lintian check which warnings if
the minimum bytecode version is exceeded - I think this should be Java 5.
The jh_depends command in the javatools package checks the bytecode version
in jar files for generating alternative runtime Dependencies - this can
probably be re-used in lintian as well:
(version: bytecode version)
java5: 49
java6: 50
java7: 51
This is of immediate use in Ubuntu where we are starting the transition of
default-java to OpenJDK7 but OpenJDK6 will be retained in the archive.
Thanks
- -- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-24-generic (SMP w/8 CPU cores)
Locale: LANG=C, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages lintian depends on:
ii binutils 2.22-6
ii bzip2 1.0.6-1
ii diffstat 1.55-2
ii file 5.11-1
ii gettext 0.18.1.1-8
ii hardening-includes 2.1
ii intltool-debian 0.35.0+20060710.1
ii libapt-pkg-perl 0.1.26+b1
ii libc-bin 2.13-32
ii libclass-accessor-perl 0.34-1
ii libclone-perl 0.31-1+b2
ii libdpkg-perl 1.16.3
ii libemail-valid-perl 0.190-1
ii libipc-run-perl 0.91-1
ii libparse-debianchangelog-perl 1.2.0-1
ii libtimedate-perl 1.2000-1
ii liburi-perl 1.60-1
ii locales 2.13-32
ii man-db 2.6.1-2
ii patchutils 0.3.2-1.1
ii perl [libdigest-sha-perl] 5.14.2-10
ii unzip 6.0-6
lintian recommends no packages.
Versions of packages lintian suggests:
ii binutils-multiarch <none>
ii dpkg-dev 1.16.3
ii libhtml-parser-perl 3.69-2
ii libtext-template-perl <none>
ii man-db 2.6.1-2
ii xz-utils 5.1.1alpha+20110809-3
- -- debconf-show failed
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