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StackWalker updates for Java 22 #18145

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merged 1 commit into from
Sep 15, 2023
Merged

StackWalker updates for Java 22 #18145

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12 changes: 3 additions & 9 deletions jcl/src/java.base/share/classes/java/lang/PinnedThreadPrinter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -26,26 +26,20 @@
import java.lang.StackWalker.StackFrame;
import java.lang.StackWalker.StackFrameImpl;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import static java.lang.StackWalker.Option.*;

/**
* Prints the stack trace of Pinned Thread that is attempting to yield.
* Prints the stack trace of a pinned thread that is attempting to yield.
*/
final class PinnedThreadPrinter {
private static final StackWalker STACKWALKER;

static {
STACKWALKER = StackWalker.getInstance(Set.of(SHOW_REFLECT_FRAMES, RETAIN_CLASS_REFERENCE));
STACKWALKER.setGetMonitorsFlag();
}
private static final StackWalker STACKWALKER = StackWalker.newInstanceWithMonitors();

static void printStackTrace(PrintStream out, boolean printAll) {
out.println(Thread.currentThread());
List<StackFrame> stackFrames = STACKWALKER.walk(s -> s.collect(Collectors.toList()));
for (int i = 0; i < stackFrames.size(); i++) {
StackFrameImpl sti = (StackFrameImpl)stackFrames.get(i);
StackFrameImpl sti = (StackFrameImpl) stackFrames.get(i);
Object[] monitors = sti.getMonitors();

if (monitors != null) {
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