com.liferay.portal.upgrade
Classes 
DropIndexes
UpgradePause
UpgradeProcess_4_3_0
UpgradeProcess_4_3_1
UpgradeProcess_4_3_2
UpgradeProcess_4_3_3
UpgradeProcess_4_3_4
UpgradeProcess_4_3_5
UpgradeProcess_4_4_0
UpgradeProcess_5_0_0
UpgradeProcess_5_1_0
UpgradeProcess_5_1_2
UpgradeProcess_5_1_7_to_5_2_7
UpgradeProcess_5_1_8_to_5_2_8
UpgradeProcess_5_2_0
UpgradeProcess_5_2_1
UpgradeProcess_5_2_2
UpgradeProcess_5_2_3
UpgradeProcess_5_2_4
UpgradeProcess_5_2_5
UpgradeProcess_5_2_6
UpgradeProcess_5_2_7
UpgradeProcess_5_2_8
UpgradeProcessUtil