Having the environment variable CLASSPATH set when building can cause hard-to-diagnose build errors. We should not silently accept the CLASSPATH variable when building. Normally, the classpath should be correctly setup for all invocations of java during the build. If the user wants to have a hard-coded value for CLASSPATH, they must set it explicitly in `configure`.
------------- Commit messages: - 8229031: Exporting CLASSPATH from shell can result in build failures Changes: https://git.openjdk.java.net/jdk/pull/5280/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5280&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8229031 Stats: 27 lines in 2 files changed: 27 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/5280.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/5280/head:pull/5280 PR: https://git.openjdk.java.net/jdk/pull/5280
