On Wed, 2 Jun 2021 02:32:54 GMT, Yi Yang <[email protected]> wrote:
>> The JDK codebase re-created many variants of checkIndex(`grep -I -r
>> 'cehckIndex' jdk/`). A notable variant is java.nio.Buffer.checkIndex, which
>> annotated with @IntrinsicCandidate and it only has a corresponding C1
>> intrinsic version.
>>
>> In fact, there is an utility method
>> `jdk.internal.util.Preconditions.checkIndex`(wrapped by
>> java.lang.Objects.checkIndex) that behaves the same as these variants of
>> checkIndex, we can replace these re-created variants of checkIndex by
>> Objects.checkIndex, it would significantly reduce duplicated code and enjoys
>> performance improvement because Preconditions.checkIndex is
>> @IntrinsicCandidate and it has a corresponding intrinsic method in HotSpot.
>>
>> But, the problem is currently HotSpot only implements the C2 version of
>> Preconditions.checkIndex. To reuse it global-widely in JDK code, I think we
>> can firstly implement its C1 counterpart. There are also a few kinds of
>> stuff we can do later:
>>
>> 1. Replace all variants of checkIndex by Objects.checkIndex in the whole JDK
>> codebase.
>> 2. Remove Buffer.checkIndex and obsolete/deprecate InlineNIOCheckIndex flag
>>
>> Testing: cds, compiler and jdk
>
> Yi Yang has updated the pull request with a new target base due to a merge or
> a rebase. The pull request now contains eight commits:
>
> - x86_32 fails
> - build failed
> - cmp clobbers its left argument on x86_32
> - better check1-4
> - AssertionError when expected exception was not thrown
> - remove InlineNIOCheckIndex flag
> - remove java_nio_Buffer in javaClasses.hpp
> - consolidate
`test/jdk/java/util/Objects/CheckIndex.java` and
`test/jdk/java/util/Objects/CheckLongIndex.java` started failing. Please take a
look.
test CheckIndex.testCheckIndex(0, -2147483647, false): failure
java.lang.AssertionError: Index 0 is out of bounds of [0, -2147483647), but was
reported to be within bounds
at org.testng.Assert.fail(Assert.java:94)
at CheckIndex.lambda$testCheckIndex$3(CheckIndex.java:103)
at CheckIndex.testCheckIndex(CheckIndex.java:117)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:821)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1131)
at
org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
at org.testng.TestRunner.privateRun(TestRunner.java:773)
at org.testng.TestRunner.run(TestRunner.java:623)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:357)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:352)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:310)
at org.testng.SuiteRunner.run(SuiteRunner.java:259)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1185)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1110)
at org.testng.TestNG.run(TestNG.java:1018)
at
com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:94)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:831)
test CheckIndex.testCheckIndex(0, -2147483648, false): failure
java.lang.AssertionError: Index 0 is out of bounds of [0, -2147483648), but was
reported to be within bounds
at org.testng.Assert.fail(Assert.java:94)
at CheckIndex.lambda$testCheckIndex$3(CheckIndex.java:103)
at CheckIndex.testCheckIndex(CheckIndex.java:120)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:821)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1131)
at
org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
at org.testng.TestRunner.privateRun(TestRunner.java:773)
at org.testng.TestRunner.run(TestRunner.java:623)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:357)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:352)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:310)
at org.testng.SuiteRunner.run(SuiteRunner.java:259)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1185)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1110)
at org.testng.TestNG.run(TestNG.java:1018)
at
com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:94)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:831)
test CheckIndex.testCheckIndex(1, -1, false): failure
java.lang.AssertionError: Index 1 is out of bounds of [0, -1), but was reported
to be within bounds
at org.testng.Assert.fail(Assert.java:94)
at CheckIndex.lambda$testCheckIndex$3(CheckIndex.java:103)
at CheckIndex.testCheckIndex(CheckIndex.java:130)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:821)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1131)
at
org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
at org.testng.TestRunner.privateRun(TestRunner.java:773)
at org.testng.TestRunner.run(TestRunner.java:623)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:357)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:352)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:310)
at org.testng.SuiteRunner.run(SuiteRunner.java:259)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1185)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1110)
at org.testng.TestNG.run(TestNG.java:1018)
at
com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:94)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:831)
-------------
PR: https://git.openjdk.java.net/jdk/pull/3615
