[jdk17u-dev] RFR: 8307732: build-test-lib is broken

[Vishal Chand]

- This PR backports JDK-8307732 to jdk17u-dev. The build-test-lib target is broken on jdk17 and is needed to build wb.jar and test-lib.jar.
- `make build-test-lib` works as expected after the change.

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Commit messages:
 - Backport 0da48f19cbebe0730d689cb966b886f6f73fb3f1

Changes: https://git.openjdk.org/jdk17u-dev/pull/1801/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1801&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8307732
  Stats: 10 lines in 2 files changed: 7 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1801.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1801/head:pull/1801

PR: https://git.openjdk.org/jdk17u-dev/pull/1801