Update ClassLoader.findNative to support JEP 472 #20840
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A new version of ClassLoader.findNative has been introduced, which accepts the Java method name and the Java class where the native method is declared as input parameters. It performs native access checks to comply with JEP 472 (Prepare to Restrict the Use of JNI). Related: eclipse-openj9#19680 Related: eclipse-openj9#20354 Signed-off-by: Babneet Singh <[email protected]>
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@tajila Requesting your review. |
tajila
reviewed
Dec 17, 2024
| static long findNative(ClassLoader loader, String entryName) { | ||
| /*[IF JAVA_SPEC_VERSION >= 24]*/ | ||
| static long findNative1(ClassLoader loader, String entryName, Class<?> cls, String javaName) { | ||
| long address = findNative0(loader, entryName); |
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Does the spec specify this order of checks? As in, if we look for a method that doesnt exist in a class that doesnt have native access, which error shows up?
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The spec does not explicitly define the order of checks, but we can infer it from the available OpenJDK tests. Currently, we are aligned with the RI since we pass the majority of failing tests in #20354.
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jenkins test sanity alinux64 jdk24 |
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A new version of
ClassLoader.findNativehas been introduced, whichaccepts the Java method name and the Java class where the native
method is declared as input parameters. It performs native access
checks to comply with JEP 472 (Prepare to Restrict the Use of JNI).
Related: #19680
Related: #20354