Allow defining jul helper classes without using temp directory#15682
Merged
trask merged 1 commit intoopen-telemetry:mainfrom Dec 18, 2025
Merged
Allow defining jul helper classes without using temp directory#15682trask merged 1 commit intoopen-telemetry:mainfrom
trask merged 1 commit intoopen-telemetry:mainfrom
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jaydeluca
approved these changes
Dec 18, 2025
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Resolves #15666
On jdk 23+ we don't use unsafe to define classes in boot loader. We can either provide a
MethodHandles.Lookupfor the desired package or fall back to usingInstrumentation.appendToBootstrapClassLoaderSearch. The latter needs to create a temporary jar which won't work when the temp directory isn't writable.