was introduced with fix [JDK-8189354] which uses MockListObserver in tests. Fix is analogous to previous eclipse build problems (f.i. JDK-8265513): add-exports to allow access to base' test package.
- relates to
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JDK-8189354 Change.getRemoved() list contains incorrect selected items when a TreeItem is collapsed
- Resolved
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JDK-8265513 Openjfx graphics build broken (Eclipse)
- Resolved