The string was fixed to match other parameters' formatting. There was a PR submitted for this change a long time ago, but there were some issue with its previous author. Today I found the issue being assigned to me, so I figured I might as well submit a patch for it as it was a quick & easy fix.
------------- Commit messages: - 8238968: Inconsisent formatting of Rectangle2D toString method Changes: https://git.openjdk.org/jfx/pull/967/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=967&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8238968 Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jfx/pull/967.diff Fetch: git fetch https://git.openjdk.org/jfx pull/967/head:pull/967 PR: https://git.openjdk.org/jfx/pull/967