[LUCENE-5614] Add workaround for ANT bug to enable compile with Java 8 on ANT 1.8.3. and 1.8.4

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.8, 4.9, 6.0
• Component/s: general/build
• Labels: Java8
• Lucene Fields: New
• Assignee: Uwe Schindler
• Reporter: Uwe Schindler
• Created: 17/Apr/14 12:19
• Updated: 28/Aug/22 14:05
• Resolved: 17/Apr/14 12:32

Description

Ant has the following bug introduced in ANT 1.8.3 and 1.8.4. Unfortunately many computers are on this version (and MacOSX on 1.8.2):
https://issues.apache.org/bugzilla/show_bug.cgi?id=53347

I would like to change to minimum ANT 1.9.0, but this would make MacOSX user unhappy. The provided patch is a workaround to set the compiler version to "javac1.7" via ANT property, if the broken versions are used with Java 1.8.