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[GR-65899] JFR substitutions for JDK 25+26. #11400

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[GR-65899] JFR substitutions for JDK 25+26. #11400

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29c7034
jfr substitutions
roberttoyonaga Jun 12, 2025
a3104c7
fix style
roberttoyonaga Jun 12, 2025
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24 changes: 24 additions & 0 deletions ...tevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jfr/Target_jdk_jfr_internal_JVM.java
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Original file line number Diff line number Diff line change
Expand Up @@ -296,6 +296,12 @@ public static void setMethodSamplingPeriod(long type, long intervalMillis) {
SubstrateJVM.get().setMethodSamplingInterval(type, intervalMillis);
}

/** See {@code JVM#setCPUThrottle}. */
@Substitute
public static void setCPUThrottle(double rate, boolean autoAdapt) {
// JFR CPUTimeSample is not supported.
}

/** See {@link JVM#setOutput}. */
@Substitute
public static void setOutput(String file) {
Expand Down Expand Up @@ -652,6 +658,24 @@ public static boolean isProduct() {
*/
return true;
}

/** See {@link JVM#setMethodTraceFilters}. */
@Substitute
public static long[] setMethodTraceFilters(
String[] classes,
String[] methods,
String[] annotations,
int[] modification) {
// JFR method tracing is not supported. No filters can be used so return null.
return null;
}

/** See {@link JVM#drainStaleMethodTracerIds}. */
@Substitute
public static long[] drainStaleMethodTracerIds() {
// JFR method tracing is not supported. Return no stale IDs.
return null;
}
}

class Target_jdk_jfr_internal_JVM_Util {
Expand Down