- * This is a convenient method for local management use and is + * This is a convenience method for local management use and is * equivalent to calling: *
* {@link #getThreadCpuTime getThreadCpuTime}(Thread.currentThread().getId());
@@ -403,7 +403,7 @@
* @return the total CPU time for the current thread if CPU time
* measurement is enabled; {@code -1} otherwise.
*
- * @throws java.lang.UnsupportedOperationException if the Java
+ * @throws UnsupportedOperationException if the Java
* virtual machine does not support CPU time measurement for
* the current thread.
*
@@ -421,7 +421,7 @@
* not necessarily nanoseconds accuracy.
*
*
- * This is a convenient method for local management use and is
+ * This is a convenience method for local management use and is
* equivalent to calling:
*
* {@link #getThreadUserTime getThreadUserTime}(Thread.currentThread().getId());
@@ -430,7 +430,7 @@
* @return the user-level CPU time for the current thread if CPU time
* measurement is enabled; {@code -1} otherwise.
*
- * @throws java.lang.UnsupportedOperationException if the Java
+ * @throws UnsupportedOperationException if the Java
* virtual machine does not support CPU time measurement for
* the current thread.
*
@@ -467,7 +467,7 @@
* {@code -1} otherwise.
*
* @throws IllegalArgumentException if {@code id <= 0}.
- * @throws java.lang.UnsupportedOperationException if the Java
+ * @throws UnsupportedOperationException if the Java
* virtual machine does not support CPU time measurement for
* other threads.
*
@@ -502,7 +502,7 @@
* {@code -1} otherwise.
*
* @throws IllegalArgumentException if {@code id <= 0}.
- * @throws java.lang.UnsupportedOperationException if the Java
+ * @throws UnsupportedOperationException if the Java
* virtual machine does not support CPU time measurement for
* other threads.
*
@@ -548,7 +548,7 @@
* @return {@code true} if thread CPU time measurement is enabled;
* {@code false} otherwise.
*
- * @throws java.lang.UnsupportedOperationException if the Java virtual
+ * @throws UnsupportedOperationException if the Java virtual
* machine does not support CPU time measurement for other threads
* nor for the current thread.
*
@@ -564,11 +564,11 @@
* @param enable {@code true} to enable;
* {@code false} to disable.
*
- * @throws java.lang.UnsupportedOperationException if the Java
+ * @throws UnsupportedOperationException if the Java
* virtual machine does not support CPU time measurement for
* any threads nor for the current thread.
*
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("control").
*
@@ -604,7 +604,7 @@
* @return an array of IDs of the threads that are monitor
* deadlocked, if any; {@code null} otherwise.
*
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("monitor").
*
@@ -616,7 +616,7 @@
* Resets the peak thread count to the current number of
* live threads.
*
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("control").
*
@@ -642,10 +642,10 @@
* deadlocked waiting for object monitors or ownable synchronizers, if any;
* {@code null} otherwise.
*
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("monitor").
- * @throws java.lang.UnsupportedOperationException if the Java virtual
+ * @throws UnsupportedOperationException if the Java virtual
* machine does not support monitoring of ownable synchronizer usage.
*
* @see #isSynchronizerUsageSupported
@@ -704,10 +704,10 @@
* information about a thread whose ID is in the corresponding
* element of the input array of IDs.
*
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("monitor").
- * @throws java.lang.UnsupportedOperationException
+ * @throws UnsupportedOperationException
*
* - if {@code lockedMonitors} is {@code true} but
* the Java virtual machine does not support monitoring
@@ -794,10 +794,10 @@
* element of the input array of IDs.
*
* @throws IllegalArgumentException if {@code maxDepth} is negative.
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("monitor").
- * @throws java.lang.UnsupportedOperationException
+ * @throws UnsupportedOperationException
*
* - if {@code lockedMonitors} is {@code true} but
* the Java virtual machine does not support monitoring
@@ -835,10 +835,10 @@
*
* @return an array of {@link ThreadInfo} for all live threads.
*
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("monitor").
- * @throws java.lang.UnsupportedOperationException
+ * @throws UnsupportedOperationException
*
* - if {@code lockedMonitors} is {@code true} but
* the Java virtual machine does not support monitoring
@@ -884,10 +884,10 @@
* @return an array of {@link ThreadInfo} for all live threads.
*
* @throws IllegalArgumentException if {@code maxDepth} is negative.
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("monitor").
- * @throws java.lang.UnsupportedOperationException
+ * @throws UnsupportedOperationException
*
* - if {@code lockedMonitors} is {@code true} but
* the Java virtual machine does not support monitoring
diff -r ac24594d2c8c -r c29e49148be7 src/java.management/share/classes/sun/management/ThreadImpl.java
--- a/src/java.management/share/classes/sun/management/ThreadImpl.java Wed Sep 25 14:33:44 2019 -0700
+++ b/src/java.management/share/classes/sun/management/ThreadImpl.java Wed Sep 25 15:22:33 2019 -0700
@@ -29,6 +29,7 @@
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
import javax.management.ObjectName;
+import java.util.Objects;
/**
* Implementation for java.lang.management.ThreadMXBean as well as providing the
@@ -112,11 +113,15 @@
return cpuTimeEnabled;
}
- protected boolean isThreadAllocatedMemoryEnabled() {
+ private void ensureThreadAllocatedMemorySupported() {
if (!isThreadAllocatedMemorySupported()) {
throw new UnsupportedOperationException(
- "Thread allocated memory measurement is not supported");
+ "Thread allocated memory measurement is not supported.");
}
+ }
+
+ protected boolean isThreadAllocatedMemoryEnabled() {
+ ensureThreadAllocatedMemorySupported();
return allocatedMemoryEnabled;
}
@@ -155,16 +160,18 @@
return getThreadInfo(ids, 0);
}
+ private void verifyThreadId(long id) {
+ if (id <= 0) {
+ throw new IllegalArgumentException(
+ "Invalid thread ID parameter: " + id);
+ }
+ }
+
private void verifyThreadIds(long[] ids) {
- if (ids == null) {
- throw new NullPointerException("Null ids parameter.");
- }
+ Objects.requireNonNull(ids);
for (int i = 0; i < ids.length; i++) {
- if (ids[i] <= 0) {
- throw new IllegalArgumentException(
- "Invalid thread ID parameter: " + ids[i]);
- }
+ verifyThreadId(ids[i]);
}
}
@@ -342,26 +349,41 @@
}
}
+ protected long getCurrentThreadAllocatedBytes() {
+ if (isThreadAllocatedMemoryEnabled()) {
+ return getThreadAllocatedMemory0(0);
+ }
+ return -1;
+ }
+
+ private boolean verifyThreadAllocatedMemory(long id) {
+ verifyThreadId(id);
+ return isThreadAllocatedMemoryEnabled();
+ }
+
protected long getThreadAllocatedBytes(long id) {
- long[] ids = new long[1];
- ids[0] = id;
- final long[] sizes = getThreadAllocatedBytes(ids);
- return sizes[0];
+ boolean verified = verifyThreadAllocatedMemory(id);
+
+ if (verified) {
+ return getThreadAllocatedMemory0(
+ Thread.currentThread().getId() == id ? 0 : id);
+ }
+ return -1;
}
private boolean verifyThreadAllocatedMemory(long[] ids) {
verifyThreadIds(ids);
-
- // check if Thread allocated memory measurement is supported.
- if (!isThreadAllocatedMemorySupported()) {
- throw new UnsupportedOperationException(
- "Thread allocated memory measurement is not supported.");
- }
-
return isThreadAllocatedMemoryEnabled();
}
protected long[] getThreadAllocatedBytes(long[] ids) {
+ Objects.requireNonNull(ids);
+
+ if (ids.length == 1) {
+ long size = getThreadAllocatedBytes(ids[0]);
+ return new long[] { size };
+ }
+
boolean verified = verifyThreadAllocatedMemory(ids);
long[] sizes = new long[ids.length];
@@ -374,10 +396,7 @@
}
protected void setThreadAllocatedMemoryEnabled(boolean enable) {
- if (!isThreadAllocatedMemorySupported()) {
- throw new UnsupportedOperationException(
- "Thread allocated memory measurement is not supported.");
- }
+ ensureThreadAllocatedMemorySupported();
Util.checkControlAccess();
synchronized (this) {
@@ -511,6 +530,7 @@
private static native void getThreadTotalCpuTime1(long[] ids, long[] result);
private static native long getThreadUserCpuTime0(long id);
private static native void getThreadUserCpuTime1(long[] ids, long[] result);
+ private static native long getThreadAllocatedMemory0(long id);
private static native void getThreadAllocatedMemory1(long[] ids, long[] result);
private static native void setThreadCpuTimeEnabled0(boolean enable);
private static native void setThreadAllocatedMemoryEnabled0(boolean enable);
diff -r ac24594d2c8c -r c29e49148be7 src/java.management/share/native/libmanagement/ThreadImpl.c
--- a/src/java.management/share/native/libmanagement/ThreadImpl.c Wed Sep 25 14:33:44 2019 -0700
+++ b/src/java.management/share/native/libmanagement/ThreadImpl.c Wed Sep 25 15:22:33 2019 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -94,6 +94,13 @@
JNI_FALSE /* user */);
}
+JNIEXPORT jlong JNICALL
+Java_sun_management_ThreadImpl_getThreadAllocatedMemory0
+ (JNIEnv *env, jclass cls, jlong tid)
+{
+ return jmm_interface->GetOneThreadAllocatedMemory(env, tid);
+}
+
JNIEXPORT void JNICALL
Java_sun_management_ThreadImpl_getThreadAllocatedMemory1
(JNIEnv *env, jclass cls, jlongArray ids, jlongArray sizeArray)
diff -r ac24594d2c8c -r c29e49148be7 src/jdk.management/share/classes/com/sun/management/ThreadMXBean.java
--- a/src/jdk.management/share/classes/com/sun/management/ThreadMXBean.java Wed Sep 25 14:33:44 2019 -0700
+++ b/src/jdk.management/share/classes/com/sun/management/ThreadMXBean.java Wed Sep 25 15:22:33 2019 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -61,7 +61,7 @@
* @throws NullPointerException if {@code ids} is {@code null}
* @throws IllegalArgumentException if any element in the input array
* {@code ids} is {@code <=} {@code 0}.
- * @throws java.lang.UnsupportedOperationException if the Java
+ * @throws UnsupportedOperationException if the Java
* virtual machine implementation does not support CPU time
* measurement.
*
@@ -95,7 +95,7 @@
* @throws NullPointerException if {@code ids} is {@code null}
* @throws IllegalArgumentException if any element in the input array
* {@code ids} is {@code <=} {@code 0}.
- * @throws java.lang.UnsupportedOperationException if the Java
+ * @throws UnsupportedOperationException if the Java
* virtual machine implementation does not support CPU time
* measurement.
*
@@ -109,13 +109,50 @@
/**
* Returns an approximation of the total amount of memory, in bytes,
- * allocated in heap memory for the thread of the specified ID.
+ * allocated in heap memory for the current thread.
+ * The returned value is an approximation because some Java virtual machine
+ * implementations may use object allocation mechanisms that result in a
+ * delay between the time an object is allocated and the time its size is
+ * recorded.
+ *
+ *
+ * This is a convenience method for local management use and is
+ * equivalent to calling:
+ *
+ * {@link #getThreadAllocatedBytes getThreadAllocatedBytes}(Thread.currentThread().getId());
+ *
+ *
+ * @implSpec The default implementation throws
+ * {@code UnsupportedOperationException}.
+ *
+ * @return an approximation of the total memory allocated, in bytes, in
+ * heap memory for the current thread
+ * if thread memory allocation measurement is enabled;
+ * {@code -1} otherwise.
+ *
+ * @throws UnsupportedOperationException if the Java virtual
+ * machine implementation does not support thread memory allocation
+ * measurement.
+ *
+ * @see #isThreadAllocatedMemorySupported
+ * @see #isThreadAllocatedMemoryEnabled
+ * @see #setThreadAllocatedMemoryEnabled
+ *
+ * @since 14
+ */
+ public default long getCurrentThreadAllocatedBytes() {
+ throw new UnsupportedOperationException();
+ }
+
+ /**
+ * Returns an approximation of the total amount of memory, in bytes,
+ * allocated in heap memory for the thread with the specified ID.
* The returned value is an approximation because some Java virtual machine
* implementations may use object allocation mechanisms that result in a
* delay between the time an object is allocated and the time its size is
* recorded.
*
- * If the thread of the specified ID is not alive or does not exist,
+ * If the thread with the specified ID is not alive or does not exist,
* this method returns {@code -1}. If thread memory allocation measurement
* is disabled, this method returns {@code -1}.
* A thread is alive if it has been started and has not yet died.
@@ -127,13 +164,13 @@
*
* @param id the thread ID of a thread
* @return an approximation of the total memory allocated, in bytes, in
- * heap memory for a thread of the specified ID
- * if the thread of the specified ID exists, the thread is alive,
+ * heap memory for the thread with the specified ID
+ * if the thread with the specified ID exists, the thread is alive,
* and thread memory allocation measurement is enabled;
* {@code -1} otherwise.
*
* @throws IllegalArgumentException if {@code id} {@code <=} {@code 0}.
- * @throws java.lang.UnsupportedOperationException if the Java virtual
+ * @throws UnsupportedOperationException if the Java virtual
* machine implementation does not support thread memory allocation
* measurement.
*
@@ -165,7 +202,7 @@
* @throws NullPointerException if {@code ids} is {@code null}
* @throws IllegalArgumentException if any element in the input array
* {@code ids} is {@code <=} {@code 0}.
- * @throws java.lang.UnsupportedOperationException if the Java virtual
+ * @throws UnsupportedOperationException if the Java virtual
* machine implementation does not support thread memory allocation
* measurement.
*
@@ -194,7 +231,7 @@
* @return {@code true} if thread memory allocation measurement is enabled;
* {@code false} otherwise.
*
- * @throws java.lang.UnsupportedOperationException if the Java virtual
+ * @throws UnsupportedOperationException if the Java virtual
* machine does not support thread memory allocation measurement.
*
* @see #isThreadAllocatedMemorySupported
@@ -208,10 +245,10 @@
* @param enable {@code true} to enable;
* {@code false} to disable.
*
- * @throws java.lang.UnsupportedOperationException if the Java virtual
+ * @throws UnsupportedOperationException if the Java virtual
* machine does not support thread memory allocation measurement.
*
- * @throws java.lang.SecurityException if a security manager
+ * @throws SecurityException if a security manager
* exists and the caller does not have
* ManagementPermission("control").
*
diff -r ac24594d2c8c -r c29e49148be7 src/jdk.management/share/classes/com/sun/management/internal/HotSpotThreadImpl.java
--- a/src/jdk.management/share/classes/com/sun/management/internal/HotSpotThreadImpl.java Wed Sep 25 14:33:44 2019 -0700
+++ b/src/jdk.management/share/classes/com/sun/management/internal/HotSpotThreadImpl.java Wed Sep 25 15:22:33 2019 -0700
@@ -58,6 +58,11 @@
}
@Override
+ public long getCurrentThreadAllocatedBytes() {
+ return super.getCurrentThreadAllocatedBytes();
+ }
+
+ @Override
public long getThreadAllocatedBytes(long id) {
return super.getThreadAllocatedBytes(id);
}
diff -r ac24594d2c8c -r c29e49148be7 test/hotspot/jtreg/vmTestbase/nsk/monitoring/ThreadMXBean/GetThreadAllocatedBytes/BaseBehaviorTest.README
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/ThreadMXBean/GetThreadAllocatedBytes/BaseBehaviorTest.README Wed Sep 25 14:33:44 2019 -0700
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/ThreadMXBean/GetThreadAllocatedBytes/BaseBehaviorTest.README Wed Sep 25 15:22:33 2019 -0700
@@ -1,4 +1,4 @@
-Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
This code is free software; you can redistribute it and/or modify it
@@ -21,7 +21,8 @@
DESCRIPTION
- Tests getThreadAllocatedBytes(long id) and getThreadAllocatedBytes(long[] ids),
+ Tests getCurrentThreadAllocatedBytes(), getThreadAllocatedBytes(long id),
+ and getThreadAllocatedBytes(long[] ids),
functions of com.sun.management.ThreadMXBean
All methods should
diff -r ac24594d2c8c -r c29e49148be7 test/hotspot/jtreg/vmTestbase/nsk/monitoring/ThreadMXBean/GetThreadAllocatedBytes/BaseBehaviorTest.java
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/ThreadMXBean/GetThreadAllocatedBytes/BaseBehaviorTest.java Wed Sep 25 14:33:44 2019 -0700
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/ThreadMXBean/GetThreadAllocatedBytes/BaseBehaviorTest.java Wed Sep 25 15:22:33 2019 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -27,7 +27,8 @@
import nsk.monitoring.ThreadMXBean.*;
/**
- * Tests getThreadAllocatedBytes(long id) and getThreadAllocatedBytes(long[] ids),
+ * Tests getCurrentThreadAllocatedBytes(), getThreadAllocatedBytes(long id).
+ * and getThreadAllocatedBytes(long[] ids),
* functions of com.sun.management.ThreadMXBean
*
* All methods should
@@ -49,11 +50,31 @@
public void run() {
if (threadMXBean == null)
return;
+
+ // Expect -1 if thread allocated memory is disabled
+ threadMXBean.setThreadAllocatedMemoryEnabled(false);
+ long result = threadMXBean.getCurrentThreadAllocatedBytes();
+ if (result != -1)
+ throw new TestFailure("Failure! getCurrentThreadAllocatedBytes() should "
+ + "return -1 if ThreadAllocatedMemoryEnabled is set to false. "
+ + "Received : " + result);
+ threadMXBean.setThreadAllocatedMemoryEnabled(true);
+ // Expect >= 0 value for current thread
+ result = threadMXBean.getCurrentThreadAllocatedBytes();
+ if (result < 0)
+ throw new TestFailure("Failure! getCurrentThreadAllocatedBytes() should "
+ + "return >= 0 value for current thread. Received : " + result);
+ // Expect >= 0 value for current thread from getThreadAllocatedBytes(id)
+ result = threadMXBean.getThreadAllocatedBytes(Thread.currentThread().getId());
+ if (result < 0)
+ throw new TestFailure("Failure! getThreadAllocatedBytes(id) should "
+ + "return >= 0 value for current thread. Received : " + result);
+
MXBeanTestThread thread = new MXBeanTestThread();
long id = thread.getId();
long[] idArr = new long[] { id };
- long result;
long[] resultArr;
+
// Expect -1 for not started threads
result = threadMXBean.getThreadAllocatedBytes(id);
if (result != -1)
@@ -80,7 +101,7 @@
+ "Recieved : " + resultArr[0]);
threadMXBean.setThreadAllocatedMemoryEnabled(true);
- // Expect > 0 value for running threads
+ // Expect >= 0 value for running threads
result = threadMXBean.getThreadAllocatedBytes(id);
if (result < 0)
throw new TestFailure("Failure! getThreadAllocatedBytes(long id) should "
diff -r ac24594d2c8c -r c29e49148be7 test/hotspot/jtreg/vmTestbase/nsk/monitoring/share/server/ServerThreadMXBeanNew.java
--- a/test/hotspot/jtreg/vmTestbase/nsk/monitoring/share/server/ServerThreadMXBeanNew.java Wed Sep 25 14:33:44 2019 -0700
+++ b/test/hotspot/jtreg/vmTestbase/nsk/monitoring/share/server/ServerThreadMXBeanNew.java Wed Sep 25 15:22:33 2019 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -59,6 +59,10 @@
new String[] { long.class.getName() });
}
+ public long getCurrentThreadAllocatedBytes() {
+ return getLongAttribute("CurrentThreadAllocatedBytes");
+ }
+
public void setThreadAllocatedMemoryEnabled(boolean enabled) {
setBooleanAttribute("ThreadAllocatedMemoryEnabled", enabled);
}
diff -r ac24594d2c8c -r c29e49148be7 test/jdk/com/sun/management/ThreadMXBean/ThreadAllocatedMemory.java
--- a/test/jdk/com/sun/management/ThreadMXBean/ThreadAllocatedMemory.java Wed Sep 25 14:33:44 2019 -0700
+++ b/test/jdk/com/sun/management/ThreadMXBean/ThreadAllocatedMemory.java Wed Sep 25 15:22:33 2019 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -23,7 +23,7 @@
/*
* @test
- * @bug 6173675
+ * @bug 6173675 8231209
* @summary Basic test of ThreadMXBean.getThreadAllocatedBytes
* @author Paul Hohensee
*/
@@ -33,9 +33,8 @@
public class ThreadAllocatedMemory {
private static com.sun.management.ThreadMXBean mbean =
(com.sun.management.ThreadMXBean)ManagementFactory.getThreadMXBean();
- private static boolean testFailed = false;
- private static boolean done = false;
- private static boolean done1 = false;
+ private static volatile boolean done = false;
+ private static volatile boolean done1 = false;
private static Object obj = new Object();
private static final int NUM_THREADS = 10;
private static Thread[] threads = new Thread[NUM_THREADS];
@@ -44,6 +43,22 @@
public static void main(String[] argv)
throws Exception {
+ testSupportEnableDisable();
+
+ // Test current thread two ways
+ testGetCurrentThreadAllocatedBytes();
+ testCurrentThreadGetThreadAllocatedBytes();
+
+ // Test a single thread that is not this one
+ testGetThreadAllocatedBytes();
+
+ // Test many threads that are not this one
+ testGetThreadsAllocatedBytes();
+
+ System.out.println("Test passed");
+ }
+
+ private static void testSupportEnableDisable() {
if (!mbean.isThreadAllocatedMemorySupported()) {
return;
}
@@ -58,10 +73,7 @@
"ThreadAllocatedMemory is expected to be disabled");
}
- Thread curThread = Thread.currentThread();
- long id = curThread.getId();
-
- long s = mbean.getThreadAllocatedBytes(id);
+ long s = mbean.getCurrentThreadAllocatedBytes();
if (s != -1) {
throw new RuntimeException(
"Invalid ThreadAllocatedBytes returned = " +
@@ -77,63 +89,106 @@
throw new RuntimeException(
"ThreadAllocatedMemory is expected to be enabled");
}
+ }
+
+ private static void testGetCurrentThreadAllocatedBytes() {
+ long size = mbean.getCurrentThreadAllocatedBytes();
+ ensureValidSize(size);
+
+ // do some more allocation
+ doit();
+
+ checkResult(Thread.currentThread(), size,
+ mbean.getCurrentThreadAllocatedBytes());
+ }
+
+ private static void testCurrentThreadGetThreadAllocatedBytes() {
+ Thread curThread = Thread.currentThread();
+ long id = curThread.getId();
long size = mbean.getThreadAllocatedBytes(id);
- // implementation could have started measurement when
- // measurement was enabled, in which case size can be 0
- if (size < 0) {
- throw new RuntimeException(
- "Invalid allocated bytes returned = " + size);
- }
+ ensureValidSize(size);
+ // do some more allocation
doit();
- // Expected to be size1 >= size
- long size1 = mbean.getThreadAllocatedBytes(id);
- if (size1 < size) {
- throw new RuntimeException("Allocated bytes " + size1 +
- " expected >= " + size);
+ checkResult(curThread, size, mbean.getThreadAllocatedBytes(id));
+ }
+
+ private static void testGetThreadAllocatedBytes()
+ throws Exception {
+
+ // start a thread
+ done = false; done1 = false;
+ Thread curThread = new MyThread("MyThread");
+ curThread.start();
+ long id = curThread.getId();
+
+ // wait for thread to block after doing some allocation
+ waitUntilThreadBlocked(curThread);
+
+ long size = mbean.getThreadAllocatedBytes(id);
+ ensureValidSize(size);
+
+ // let thread go to do some more allocation
+ synchronized (obj) {
+ done = true;
+ obj.notifyAll();
}
- System.out.println(curThread.getName() +
- " Current thread allocated bytes = " + size +
- " allocated bytes = " + size1);
+
+ // wait for thread to get going again. we don't care if we
+ // catch it in mid-execution or if it hasn't
+ // restarted after we're done sleeping.
+ goSleep(400);
+
+ checkResult(curThread, size, mbean.getThreadAllocatedBytes(id));
+
+ // let thread exit
+ synchronized (obj) {
+ done1 = true;
+ obj.notifyAll();
+ }
+ try {
+ curThread.join();
+ } catch (InterruptedException e) {
+ System.out.println("Unexpected exception is thrown.");
+ e.printStackTrace(System.out);
+ }
+ }
- // start threads, wait for them to block
+ private static void testGetThreadsAllocatedBytes()
+ throws Exception {
+
+ // start threads
+ done = false; done1 = false;
for (int i = 0; i < NUM_THREADS; i++) {
threads[i] = new MyThread("MyThread-" + i);
threads[i].start();
}
- // threads block after doing some allocation
- waitUntilThreadBlocked();
+ // wait for threads to block after doing some allocation
+ waitUntilThreadsBlocked();
for (int i = 0; i < NUM_THREADS; i++) {
sizes[i] = mbean.getThreadAllocatedBytes(threads[i].getId());
+ ensureValidSize(sizes[i]);
}
- // let threads go and do some more allocation
+ // let threads go to do some more allocation
synchronized (obj) {
done = true;
obj.notifyAll();
}
- // wait for threads to get going again. we don't care if we
+ // wait for threads to get going again. we don't care if we
// catch them in mid-execution or if some of them haven't
// restarted after we're done sleeping.
goSleep(400);
for (int i = 0; i < NUM_THREADS; i++) {
- long newSize = mbean.getThreadAllocatedBytes(threads[i].getId());
- if (sizes[i] > newSize) {
- throw new RuntimeException("TEST FAILED: " +
- threads[i].getName() +
- " previous allocated bytes = " + sizes[i] +
- " > current allocated bytes = " + newSize);
- }
- System.out.println(threads[i].getName() +
- " Previous allocated bytes = " + sizes[i] +
- " Current allocated bytes = " + newSize);
+ checkResult(threads[i], sizes[i],
+ mbean.getThreadAllocatedBytes(threads[i].getId()));
}
// let threads exit
@@ -148,17 +203,30 @@
} catch (InterruptedException e) {
System.out.println("Unexpected exception is thrown.");
e.printStackTrace(System.out);
- testFailed = true;
break;
}
}
- if (testFailed) {
- throw new RuntimeException("TEST FAILED");
+ }
+
+ private static void ensureValidSize(long size) {
+ // implementation could have started measurement when
+ // measurement was enabled, in which case size can be 0
+ if (size < 0) {
+ throw new RuntimeException(
+ "Invalid allocated bytes returned = " + size);
}
-
- System.out.println("Test passed");
}
+ private static void checkResult(Thread curThread,
+ long prev_size, long curr_size) {
+ if (curr_size < prev_size) {
+ throw new RuntimeException("Allocated bytes " + curr_size +
+ " expected >= " + prev_size);
+ }
+ System.out.println(curThread.getName() +
+ " Previous allocated bytes = " + prev_size +
+ " Current allocated bytes = " + curr_size);
+ }
private static void goSleep(long ms) throws Exception {
try {
@@ -169,7 +237,18 @@
}
}
- private static void waitUntilThreadBlocked()
+ private static void waitUntilThreadBlocked(Thread thread)
+ throws Exception {
+ while (true) {
+ goSleep(100);
+ ThreadInfo info = mbean.getThreadInfo(thread.getId());
+ if (info.getThreadState() == Thread.State.WAITING) {
+ break;
+ }
+ }
+ }
+
+ private static void waitUntilThreadsBlocked()
throws Exception {
int count = 0;
while (count != NUM_THREADS) {
@@ -210,7 +289,6 @@
} catch (InterruptedException e) {
System.out.println("Unexpected exception is thrown.");
e.printStackTrace(System.out);
- testFailed = true;
break;
}
}
@@ -225,7 +303,7 @@
" ThreadAllocatedBytes = " + size2);
if (size1 > size2) {
- throw new RuntimeException("TEST FAILED: " + getName() +
+ throw new RuntimeException(getName() +
" ThreadAllocatedBytes = " + size1 +
" > ThreadAllocatedBytes = " + size2);
}
@@ -237,7 +315,6 @@
} catch (InterruptedException e) {
System.out.println("Unexpected exception is thrown.");
e.printStackTrace(System.out);
- testFailed = true;
break;
}
}