ADDITIONAL SYSTEM INFORMATION :
I tested on Mac and Linux systems. Bug is present in OpenJDK 21, Oracle java 21, and Oracle java 17

A DESCRIPTION OF THE PROBLEM :
I am attempting to use ThreadMXBean.dumpAllThreads() to see the states of my threads, but I am only getting 8 stack frames for each thread. The javadoc says that if getThreadInfo() is called without a maxdepth it is the same as Integer.MAX_VALUE. Even if I explicitly pass in Integer.MAX_VALUE I only see 8 stack frames.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
See test case.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Should see the entire stack trace for all threads.
ACTUAL -
I see at most 8 stack frames. My demo code produces this output:

"Attach Listener" daemon prio=9 Id=19 RUNNABLE

"Common-Cleaner" daemon prio=8 Id=18 TIMED_WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@6bdf28bb
at java.base@21.0.6/jdk.internal.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@6bdf28bb
at java.base@21.0.6/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:269)
at java.base@21.0.6/java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1852)
at java.base@21.0.6/java.lang.ref.ReferenceQueue.await(ReferenceQueue.java:71)
at java.base@21.0.6/java.lang.ref.ReferenceQueue.remove0(ReferenceQueue.java:143)
at java.base@21.0.6/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:218)
at java.base@21.0.6/jdk.internal.ref.CleanerImpl.run(CleanerImpl.java:140)
at java.base@21.0.6/java.lang.Thread.runWith(Thread.java:1596)
...

"Finalizer" daemon prio=8 Id=10 WAITING on java.lang.ref.NativeReferenceQueue$Lock@7e0babb1
at java.base@21.0.6/java.lang.Object.wait0(Native Method)
- waiting on java.lang.ref.NativeReferenceQueue$Lock@7e0babb1
at java.base@21.0.6/java.lang.Object.wait(Object.java:366)
at java.base@21.0.6/java.lang.Object.wait(Object.java:339)
at java.base@21.0.6/java.lang.ref.NativeReferenceQueue.await(NativeReferenceQueue.java:48)
at java.base@21.0.6/java.lang.ref.ReferenceQueue.remove0(ReferenceQueue.java:158)
at java.base@21.0.6/java.lang.ref.NativeReferenceQueue.remove(NativeReferenceQueue.java:89)
at java.base@21.0.6/java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:173)

"Monitor Ctrl-Break" daemon prio=5 Id=20 RUNNABLE
at java.base@21.0.6/jdk.internal.loader.NativeLibrary.findEntry0(Native Method)
at java.base@21.0.6/jdk.internal.loader.NativeLibraries$NativeLibraryImpl.find(NativeLibraries.java:312)
at java.base@21.0.6/jdk.internal.loader.NativeLibraries.find(NativeLibraries.java:103)
at java.base@21.0.6/java.lang.ClassLoader.findNative(ClassLoader.java:2466)
at java.base@21.0.6/sun.nio.ch.Net.isExclusiveBindAvailable(Native Method)
at java.base@21.0.6/sun.nio.ch.Net.<clinit>(Net.java:828)
at java.base@21.0.6/sun.nio.ch.NioSocketImpl.create(NioSocketImpl.java:466)
- locked java.lang.Object@6b71769e
at java.base@21.0.6/java.net.DelegatingSocketImpl.create(DelegatingSocketImpl.java:74)
...

"Notification Thread" daemon prio=9 Id=21 RUNNABLE

"Reference Handler" daemon prio=10 Id=9 RUNNABLE
at java.base@21.0.6/java.lang.ref.Reference.waitForReferencePendingList(Native Method)
at java.base@21.0.6/java.lang.ref.Reference.processPendingReferences(Reference.java:246)
at java.base@21.0.6/java.lang.ref.Reference$ReferenceHandler.run(Reference.java:208)

"Signal Dispatcher" daemon prio=9 Id=11 RUNNABLE

"main" prio=5 Id=1 RUNNABLE
at java.management@21.0.6/sun.management.ThreadImpl.dumpThreads0(Native Method)
at java.management@21.0.6/sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:518)
at app//ThreadDumpBug.printAllThreads(ThreadDumpBug.java:9)
at app//ThreadDumpBug.printThreads(ThreadDumpBug.java:18)
at app//ThreadDumpBug.printThreads(ThreadDumpBug.java:16)
at app//ThreadDumpBug.printThreads(ThreadDumpBug.java:16)
at app//ThreadDumpBug.printThreads(ThreadDumpBug.java:16)
at app//ThreadDumpBug.printThreads(ThreadDumpBug.java:16)
...


---------- BEGIN SOURCE ----------
import java.io.PrintStream;
import java.util.Comparator;

public class ThreadDumpBug {

    public static void printAllThreads(PrintStream pw) {
        java.util.Arrays.stream(
                        java.lang.management.ManagementFactory.getThreadMXBean()
                                .dumpAllThreads(true, true, Integer.MAX_VALUE)
                ).sorted(Comparator.comparing(java.lang.management.ThreadInfo::getThreadName))
                .forEach(pw::print); // already includes newlines, so using print instead of println
    }

    private static void printThreads(int moreFrames, PrintStream pw) {
        if (moreFrames > 0)
            printThreads(moreFrames - 1 , pw);
        else
            printAllThreads(pw);
    }

    public static void main(String[] args) {
        printThreads(15, System.out);
    }
}

---------- END SOURCE ----------