RFR: 8296805: ctw build is broken

[Vladimir Kozlov]

On Thu, 10 Nov 2022 16:54:39 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> I noticed the build for the ctw tool based on the WhiteBox API is
> broken. This fixes it AFAICT.

test/hotspot/jtreg/testlibrary/ctw/Makefile line 50:

> 48:     $(TESTLIBRARY_DIR)/jtreg \
> 49:     -maxdepth 1 -name '*.java')
> 50: WB_SRC_FILES = $(shell find $(TESTLIBRARY_DIR)/jdk/test/lib/compiler $(TESTLIBRARY_DIR)/jdk/test/whitebox -name '*.java')

I think `$(TESTLIBRARY_DIR)/sun/hotspot` should be removed.
[JDK-8067223](https://bugs.openjdk.org/browse/JDK-8067223) left copy of WB there because some tests were still using it. But recent @coleenp changes [JDK-8271707](https://bugs.openjdk.org/browse/JDK-8271707) and followed [JDK-8275662](https://bugs.openjdk.org/browse/JDK-8275662) removed duplicated WB in `sun/hotspot`.

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PR: https://git.openjdk.org/jdk/pull/11090