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8347817: Timeouts running test/jdk/java/lang/String/concat/HiddenClassUnloading.java with fastdebug builds

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Reviewed-by: clanger, mbaesken, mdoerr
This commit is contained in:
Richard Reingruber 2025-01-22 07:02:40 +00:00
parent 3c2a1d87d5
commit 15d6469e8d
1 changed files with 13 additions and 3 deletions
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16
test/jdk/java/lang/String/concat/HiddenClassUnloading.java
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@ -26,13 +26,20 @@ import java.lang.StringBuilder;
import java.lang.invoke.*;
import java.lang.management.ManagementFactory;
import jdk.test.whitebox.WhiteBox;
/**
* @test
* @summary Test whether the hidden class unloading of StringConcatFactory works
*
* @library /test/lib
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @requires vm.flagless
* @run main/othervm -Xmx8M -Xms8M -Xverify:all HiddenClassUnloading
* @run main/othervm -Xmx8M -Xms8M -Xverify:all -XX:-CompactStrings HiddenClassUnloading
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
* -Xverify:all HiddenClassUnloading
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
* -Xverify:all -XX:-CompactStrings HiddenClassUnloading
*/
public class HiddenClassUnloading {
public static void main(String[] args) throws Throwable {
@ -43,7 +50,7 @@ public class HiddenClassUnloading {
long initUnloadedClassCount = ManagementFactory.getClassLoadingMXBean().getUnloadedClassCount();
for (int i = 0; i < 12000; i++) {
for (int i = 0; i < 2000; i++) {
int radix = types.length;
String str = Integer.toString(i, radix);
int length = str.length();
@ -61,6 +68,9 @@ public class HiddenClassUnloading {
);
}
// Request GC which performs class unloading
WhiteBox.getWhiteBox().fullGC();
long unloadedClassCount = ManagementFactory.getClassLoadingMXBean().getUnloadedClassCount();
if (initUnloadedClassCount == unloadedClassCount) {
throw new RuntimeException("unloadedClassCount is zero");