[Bug 2127750] [NEW] openjdk-25 S390 java/util/concurrent/tck/JSR166TestCase fails (questing)

[Vladimir Petko]

Public bug reported:

One of the unit tests fails:
STARTED    AtomicReference9Test::testCompareAndExchange 'testCompareAndExchange'
junit.framework.AssertionFailedError: expected:<-5> but was:<-4>
	at junit.framework.Assert.fail(Assert.java:57)
	at junit.framework.Assert.failNotEquals(Assert.java:329)
	at junit.framework.Assert.assertEquals(Assert.java:78)
	at junit.framework.Assert.assertEquals(Assert.java:234)
	at junit.framework.Assert.assertEquals(Assert.java:241)
	at junit.framework.TestCase.assertEquals(TestCase.java:384)
	at JSR166TestCase.mustEqual(JSR166TestCase.java:1318)
	at AtomicReference9Test.testCompareAndExchange(AtomicReference9Test.java:132)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:565)
	at junit.framework.TestCase.runTest(TestCase.java:177)
	at JSR166TestCase.runTest(JSR166TestCase.java:382)
	at junit.framework.TestCase.runBare(TestCase.java:142)
	at JSR166TestCase.runBare(JSR166TestCase.java:373)
	at junit.framework.TestResult$1.protect(TestResult.java:122)
	at junit.framework.TestResult.runProtected(TestResult.java:142)
	at junit.framework.TestResult.run(TestResult.java:125)
	at junit.framework.TestCase.run(TestCase.java:130)
	at junit.framework.TestSuite.runTest(TestSuite.java:241)
	at junit.framework.TestSuite.run(TestSuite.java:236)
	at junit.framework.TestSuite.runTest(TestSuite.java:241)
	at junit.framework.TestSuite.run(TestSuite.java:236)
	at junit.framework.TestSuite.runTest(TestSuite.java:241)
	at junit.framework.TestSuite.run(TestSuite.java:236)

The compare exchange operation returns the expected value, not the
stored value.

** Affects: openjdk-25 (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- openjdk-25 S390 java/util/concurrent/tck/JSR166TestCase fails
+ openjdk-25 S390 java/util/concurrent/tck/JSR166TestCase fails (questing)

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https://bugs.launchpad.net/bugs/2127750

Title:
  openjdk-25 S390 java/util/concurrent/tck/JSR166TestCase fails
  (questing)

Status in openjdk-25 package in Ubuntu:
  New

Bug description:
  One of the unit tests fails:
  STARTED    AtomicReference9Test::testCompareAndExchange 'testCompareAndExchange'
  junit.framework.AssertionFailedError: expected:<-5> but was:<-4>
  	at junit.framework.Assert.fail(Assert.java:57)
  	at junit.framework.Assert.failNotEquals(Assert.java:329)
  	at junit.framework.Assert.assertEquals(Assert.java:78)
  	at junit.framework.Assert.assertEquals(Assert.java:234)
  	at junit.framework.Assert.assertEquals(Assert.java:241)
  	at junit.framework.TestCase.assertEquals(TestCase.java:384)
  	at JSR166TestCase.mustEqual(JSR166TestCase.java:1318)
  	at AtomicReference9Test.testCompareAndExchange(AtomicReference9Test.java:132)
  	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
  	at java.base/java.lang.reflect.Method.invoke(Method.java:565)
  	at junit.framework.TestCase.runTest(TestCase.java:177)
  	at JSR166TestCase.runTest(JSR166TestCase.java:382)
  	at junit.framework.TestCase.runBare(TestCase.java:142)
  	at JSR166TestCase.runBare(JSR166TestCase.java:373)
  	at junit.framework.TestResult$1.protect(TestResult.java:122)
  	at junit.framework.TestResult.runProtected(TestResult.java:142)
  	at junit.framework.TestResult.run(TestResult.java:125)
  	at junit.framework.TestCase.run(TestCase.java:130)
  	at junit.framework.TestSuite.runTest(TestSuite.java:241)
  	at junit.framework.TestSuite.run(TestSuite.java:236)
  	at junit.framework.TestSuite.runTest(TestSuite.java:241)
  	at junit.framework.TestSuite.run(TestSuite.java:236)
  	at junit.framework.TestSuite.runTest(TestSuite.java:241)
  	at junit.framework.TestSuite.run(TestSuite.java:236)

  The compare exchange operation returns the expected value, not the
  stored value.

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