jdk20 MathLoadTest ComparisonFailure such as expected:<1[.8E+3]> but was:<1[800]>

[pshipton]

https://openj9-jenkins.osuosl.org/job/Grinder_testList_1/77 sanity.system running on amac
MathLoadTest_bigdecimal_CS_5m_0

MLT testFailure: testItem_0659(net.adoptopenjdk.test.bigdecimal.TestSuite010): expected:<1[.8E+3]> but was:<1[800]>
MLT org.junit.ComparisonFailure: expected:<1[.8E+3]> but was:<1[800]>
MLT 	at org.junit.Assert.assertEquals(Assert.java:115)
MLT 	at org.junit.Assert.assertEquals(Assert.java:144)
MLT 	at net.adoptopenjdk.test.bigdecimal.TestSuite010.testItem_0659(TestSuite010.java:4571)

https://openj9-jenkins.osuosl.org/job/Grinder_testList_0/175
MathLoadTest_bigdecimal_5m_1

MLT testFailure: testItem_0426(net.adoptopenjdk.test.bigdecimal.TestSuite030): expected:<4[E+2]> but was:<4[00]>
MLT org.junit.ComparisonFailure: expected:<4[E+2]> but was:<4[00]>
MLT 	at org.junit.Assert.assertEquals(Assert.java:115)
MLT 	at org.junit.Assert.assertEquals(Assert.java:144)
MLT 	at net.adoptopenjdk.test.bigdecimal.TestSuite030.testItem_0426(TestSuite030.java:2999)

MLT testFailure: testItem_0691(net.adoptopenjdk.test.bigdecimal.TestSuite030): expected:<-1[E+19]> but was:<-1[0000000000000000000]>
MLT org.junit.ComparisonFailure: expected:<-1[E+19]> but was:<-1[0000000000000000000]>
MLT 	at org.junit.Assert.assertEquals(Assert.java:115)
MLT 	at org.junit.Assert.assertEquals(Assert.java:144)
MLT 	at net.adoptopenjdk.test.bigdecimal.TestSuite030.testItem_0691(TestSuite030.java:4756)

[pshipton]

Tried MathLoadTest_bigdecimal_5m_1 on xlinux as well, where it also fails.

14:27:15  MLT testFailure: testItem_0659(net.adoptopenjdk.test.bigdecimal.TestSuite010): expected:<1[.8E+3]> but was:<1[800]>
14:27:15  MLT org.junit.ComparisonFailure: expected:<1[.8E+3]> but was:<1[800]>
14:27:15  MLT 	at org.junit.Assert.assertEquals(Assert.java:115)
14:27:15  MLT 	at org.junit.Assert.assertEquals(Assert.java:144)
14:27:15  MLT 	at net.adoptopenjdk.test.bigdecimal.TestSuite010.testItem_0659(TestSuite010.java:4571)

Also tried Hotspot xlinux, which failed

MLT testFailure: testItem_0159(net.adoptopenjdk.test.bigdecimal.TestSuite019): expected:<-4[E+1]> but was:<-4[0]>
MLT org.junit.ComparisonFailure: expected:<-4[E+1]> but was:<-4[0]>
MLT 	at org.junit.Assert.assertEquals(Assert.java:115)
MLT 	at org.junit.Assert.assertEquals(Assert.java:144)
MLT 	at net.adoptopenjdk.test.bigdecimal.TestSuite019.testItem_0159(TestSuite019.java:1064)

Tried Hotspot with -Xint

MLT testFailure: testItem_0740(net.adoptopenjdk.test.bigdecimal.TestSuite060): expected:<-3[.59538626972463141629054847463408713596141135051689993197834953606314521560057077521179117265533756343080917907028764928468642653778928365536935093407075033972099821153102564152490980180778657888151737016910267884609166473806445896331617118664246696549595652408289446337476354361838599762500808052368249716736E+616]> but was:<-3[5953862697246314162905484746340871359614113505168999319783495360631452156005707752117911726553375634308091790702876492846864265377892836553693509340707503397209982115310256415249098018077865788815173701691026788460916647380644589633161711866424669654959565240828944633747635436183859976250080805236824971673600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000]>
MLT org.junit.ComparisonFailure: expected:<-3[.59538626972463141629054847463408713596141135051689993197834953606314521560057077521179117265533756343080917907028764928468642653778928365536935093407075033972099821153102564152490980180778657888151737016910267884609166473806445896331617118664246696549595652408289446337476354361838599762500808052368249716736E+616]> but was:<-3[5953862697246314162905484746340871359614113505168999319783495360631452156005707752117911726553375634308091790702876492846864265377892836553693509340707503397209982115310256415249098018077865788815173701691026788460916647380644589633161711866424669654959565240828944633747635436183859976250080805236824971673600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000]>
MLT 	at org.junit.Assert.assertEquals(Assert.java:115)
MLT 	at org.junit.Assert.assertEquals(Assert.java:144)
MLT 	at net.adoptopenjdk.test.bigdecimal.TestSuite060.testItem_0740(TestSuite060.java:5210)

[pshipton]

I assume the failures are related to the following change in jdk20. I don't know why the failures seem to happen randomly in different places. @Mesbah-Alam the test needs to be fixed.

Restore Behavior of java.math.BigDecimal.movePointLeft() and movePointRight() on a Zero Argument (JDK-8289260)
core-libs/java.math
When these methods are invoked with a zero argument on a target with a negative scale, they return a result which is numerically the same as the target, but with a different unscaled value and scale.
In earlier releases, they returned a result with the same unscaled value and scale, which was against the specification.
The behavior is unchanged when the target has a non-negative scale or when the argument is not zero.

[pshipton]

Looking at the places which fail, they contains a check for JavaSpecVersionChecker.isJDK13OrNewer().

[pshipton]

@llxia fyi

[llxia]

@Mesbah-Alam could you look into this? Thanks

[Mesbah-Alam]

These test cases are auto-generated, and it appears some of them (and there are multiple ones based on discussions above) are invalid for JDK20. The validator values will have to either be manually updated or tests regenerated. I will exclude the MathLoadTest on JDK20 temporarily while we fix this.

[Mesbah-Alam]

PR for exclude: adoptium/aqa-tests#4144.

[pshipton]

This seems a dup of adoptium/openj9-systemtest#148 which was resolved via adoptium/aqa-systemtest#482