[DERBY-5485] Simplify PropertySetter so that it is less brittle and easier to maintain.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.9.1.0
• Fix Version/s: 10.9.1.0
• Component/s: Build tools
• Urgency: Normal
• Issue & fix info: Patch Available
• Assignee: Richard N. Hillegas
• Reporter: Richard N. Hillegas
• Created: 26/Oct/11 13:00
• Updated: 09/Apr/13 16:54
• Resolved: 28/Feb/12 14:24

Description

The PropertySetter task sets up classpath variables so that the build can take advantage of JVM-specific class libraries. Using those libraries makes it possible for the compiler to flag code which is supposed to run on less capable platforms but which calls methods from later JVMs. This is a very tricky problem and we seem to have reached consensus that it requires too much effort to make PropertySetter run correctly in all of the build environments which Derby developers use. I will attach a proposal for how to simplify PropertySetter so that it requires less effort to maintain.

Issue Links

• is related to: DERBY-5984 Derby 10.8 branch does not build out-of-the-box using Oracle's Java 7 JDK on Mac OSX.
• is related to: DERBY-5483 Improve Derby build to build with IBM JDK 1.7
• is related to: DERBY-5949 Fix PropertySetter to take account of Java 8
• is related to: DERBY-5469 Make it possible to build Derby if you are on Mac OS X and your JDK is JDK 7