aross@ubuntu:~/WORKING_DIRECTORY$ source build/envsetup.sh
including device/asus/grouper/vendorsetup.sh
including device/generic/armv7-a-neon/vendorsetup.sh
including device/generic/armv7-a/vendorsetup.sh
including device/moto/wingray/vendorsetup.sh
including device/samsung/crespo/vendorsetup.sh
including device/samsung/maguro/vendorsetup.sh
including device/ti/panda/vendorsetup.sh
including sdk/bash_completion/adb.bash
aross@ubuntu:~/WORKING_DIRECTORY$ lunch

You're building on Linux

Lunch menu... pick a combo:
     1. full-eng
     2. full_x86-eng
     3. vbox_x86-eng
     4. full_grouper-userdebug
     5. mini_armv7a_neon-userdebug
     6. mini_armv7a-userdebug
     7. full_wingray-userdebug
     8. full_crespo-userdebug
     9. full_maguro-userdebug
     10. full_panda-userdebug

Which would you like? [full-eng] full_toro-userdebug

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=4.1.1
TARGET_PRODUCT=full_toro
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a-neon
HOST_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-3.2.0-27-generic-x86_64-with-Ubuntu-12.04-precise
HOST_BUILD_TYPE=release
BUILD_ID=JRO03C
OUT_DIR=out
============================================

aross@ubuntu:~/WORKING_DIRECTORY$ make -j4 otapackage
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=4.1.1
TARGET_PRODUCT=full_toro
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a-neon
HOST_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-3.2.0-27-generic-x86_64-with-Ubuntu-12.04-precise
HOST_BUILD_TYPE=release
BUILD_ID=JRO03C
OUT_DIR=out
============================================
Checking build tools versions...
************************************************************
You are attempting to build with the incorrect version
of java.

Your version is: java version "1.6.0_24".
The correct version is: Java SE 1.6.

Please follow the machine setup instructions at
    https://source.android.com/source/download.html
************************************************************
build/core/main.mk:141: *** stop.  Stop.
aross@ubuntu:~/WORKING_DIRECTORY$