Function MAP_VALUES/MAP_KEYS gives exception when mapVauleType and mapKeyType not equals map Biggest mapKeytype or mapValueType

map_values(map('foo', cast (2 as tinyint), 'bar', 2)) 

java.lang.ClassCastException: java.lang.Byte cannot be cast to java.lang.Integer
	at org.apache.calcite.avatica.util.AbstractCursor$IntAccessor.getInt(AbstractCursor.java:522)	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.convertValue(AbstractCursor.java:1396)	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.getObject(AbstractCursor.java:1377)	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.getArray(AbstractCursor.java:1432)	at org.apache.calcite.avatica.util.AbstractCursor$ArrayAccessor.getString(AbstractCursor.java:1444)	at org.apache.calcite.avatica.AvaticaResultSet.getString(AvaticaResultSet.java:241)	at org.apache.calcite.util.JdbcTypeImpl$10.get(JdbcTypeImpl.java:112)	at org.apache.calcite.util.JdbcTypeImpl$10.get(JdbcTypeImpl.java:109)	at org.apache.calcite.sql.test.ResultCheckers.compareResultSetWithMatcher(ResultCheckers.java:248)	at org.apache.calcite.sql.test.ResultCheckers$MatcherResultChecker.checkResult(ResultCheckers.java:321)	at org.apache.calcite.test.SqlOperatorTest$TesterImpl.check(SqlOperatorTest.java:14300)	at org.apache.calcite.sql.test.SqlTester.check(SqlTester.java:160)	at org.apache.calcite.test.SqlOperatorFixtureImpl.lambda$checkScalar$2(SqlOperatorFixtureImpl.java:226)	at org.apache.calcite.sql.test.AbstractSqlTester.forEachQuery(AbstractSqlTester.java:450)	at org.apache.calcite.test.SqlOperatorFixtureImpl.checkScalar(SqlOperatorFixtureImpl.java:225)	at org.apache.calcite.sql.test.SqlOperatorFixture.checkScalar(SqlOperatorFixture.java:229)	at org.apache.calcite.test.SqlOperatorTest.testMapValuesFunc(SqlOperatorTest.java:7276)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)	at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)	at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)	at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)	at java.util.ArrayList.forEach(ArrayList.java:1257)	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)	at java.util.ArrayList.forEach(ArrayList.java:1257)	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)	at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)	at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:71)	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)

Process finished with exit code -1
 

scala> val df = spark.sql("SELECT map_values(map('foo', cast (2 as tinyint), 'bar', 2))")

scala> df.show()
+------------------------------------------------+
|map_values(map(foo, CAST(2 AS TINYINT), bar, 2))|
+------------------------------------------------+
|       [2, 2]|
+------------------------------------------------+