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Fix CLDR locale adapter warnings during test security policy loading #39

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Fix CLDR locale adapter warnings during test security policy loading #39

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Copilot May 5, 2026
60ec552
Fix CLDR locale adapter and URLPermission warnings in test JVMs
Copilot May 5, 2026
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7 changes: 7 additions & 0 deletions gradle/testing/defaults-tests.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,13 @@ allprojects {
systemProperty 'java.awt.headless', 'true'
systemProperty 'jdk.map.althashing.threshold', '0'

// Use COMPAT locale provider to avoid CLDR adapter instantiation errors.
// When the security policy file is loaded, java.net.URLPermission entries trigger locale
// operations. On some JDK builds, the CLDR adapter cannot be instantiated, causing
// "java.security.policy: error adding Permission, java.net.URLPermission:" warnings.
// Setting COMPAT first avoids this failure while still allowing CLDR as a fallback.
systemProperty 'java.locale.providers', 'COMPAT,CLDR'

if (!Os.isFamily(Os.FAMILY_WINDOWS)) {
systemProperty 'java.security.egd', 'file:/dev/./urandom'
}
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