Dylan Tuttle

Added update-bash section in README

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## Description Included a subsection under the Installation instructions in the README, giving MacOS users instructions on how to update their version of Bash so as to properly enjoy the...

Assertion failure at omr/compiler/z/codegen/S390Instruction.hpp:1040: (!_targetPairFlag && !getOpCode().shouldUseRegPairForTarget()) || (_targetPairFlag && getOpCode().canUseRegPairForTarget())

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The [assertion](https://github.com/eclipse/omr/blob/b1af0b4c8fbbfaa033846148eba1e7ac129b026e/compiler/z/codegen/S390Instruction.hpp#L1036) at `/home/jenkins/workspace/Build_JDK11_s390x_linux_Personal/omr/compiler/z/codegen/S390Instruction.hpp:1040: (!_targetPairFlag && !getOpCode().shouldUseRegPairForTarget()) || (_targetPairFlag && getOpCode().canUseRegPairForTarget())` failed during `sanity.functional` test cases `FindStore.FindRelative`, `Test 62-c: Make sure the classes are loaded from the cache and work...

Assertion failure at omr/compiler/codegen/OMRRegisterDependency.hpp:273: numDeps <= SENTINEL

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The [assertion](https://github.com/eclipse/omr/blob/b1af0b4c8fbbfaa033846148eba1e7ac129b026e/compiler/codegen/OMRRegisterDependency.hpp#L273) at `/home/jenkins/workspace/Build_JDK11_ppc64le_linux_Personal/omr/compiler/codegen/OMRRegisterDependency.hpp:273: numDeps

Enable OMR_WARNINGS_AS_ERRORS in the JIT on Power for clang and GCC builds

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"Warnings as errors" is enabled on a component-by-component basis throughout OpenJ9 and OMR. For the JIT, warnings as errors is enabled on every platform in OMR and on x86, Z,...

Assertion failure at omr/compiler/optimizer/CompactLocals.cpp:303: _localsIG->getNumNodes()>=MAX_NUMBER_OF_LOCALS || *_liveVars == *liveLocals._blockAnalysisInfo[block->getNumber()]

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The [assertion](https://github.com/eclipse/omr/blob/e6b8e7aa86bb3e34de0a80e0c4e2d51f5aed70ea/compiler/optimizer/CompactLocals.cpp#L302) at `/u/jenkins/workspace/Build_JDK11_s390x_zos_Personal/omr/compiler/optimizer/CompactLocals.cpp:303: _localsIG->getNumNodes()>=MAX_NUMBER_OF_LOCALS || *_liveVars == *liveLocals._blockAnalysisInfo[block->getNumber()]` fails during `sanity.functional` test cases `decomp001` and `decomp002` on `s390x_zos` for Java 11. Link to the [Jenkins job](https://hyc-runtimes-jenkins.swg-devops.com/job/Test_openjdk11_ibm_sanity.functional_s390x_zos_Personal/536/). Stack trace: ```...

Assertion failure at omr/compiler/il/OMRSymbol_inlines.hpp:53: self()->isAuto()

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The [assertion](https://github.com/eclipse/omr/blob/40581675f30f8fe0c80d10fd3e664ff9031223f7/compiler/il/OMRSymbol_inlines.hpp#L53) at `/home/jenkins/workspace/Build_JDK11_ppc64le_linux_Personal/omr/compiler/il/OMRSymbol_inlines.hpp:53: self()->isAuto()` fails in `sanity.functional` test cases `JCL_Test_none_SCC_1` and `JCL_Test_none_SCC_0` on `ppc64le_linux` for Java 11. Link to the [Jenkins job](https://hyc-runtimes-jenkins.swg-devops.com/job/Test_openjdk11_j9_sanity.functional_ppc64le_linux_Personal/785/). Stack trace: ``` org.openj9.test.java.lang. Exception in thread...

Assertion failure at openj9/runtime/compiler/optimizer/MonitorElimination.cpp:632: !monitor->getMonitorObject()

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The [assertion](https://github.com/eclipse-openj9/openj9/blob/5ad708e02e19fee424d24ef67702c2f5babdc2a5/runtime/compiler/optimizer/MonitorElimination.cpp#L632) at `/home/jenkins/workspace/Build_JDK11_s390x_linux_Personal/openj9/runtime/compiler/optimizer/MonitorElimination.cpp:632: !monitor->getMonitorObject()` fails during `sanity.functional` test cases `TestArrayCopy_openj9_none_SCC_1`, `testJITServer_0`, `TestArrayCopy_openj9_none_SCC_3`, and `jit_jar_0` on `s390x_linux` for Java 11. Link to the [Jenkins job](https://hyc-runtimes-jenkins.swg-devops.com/job/Test_openjdk11_j9_sanity.functional_s390x_linux_Personal/771/). Stack trace: ``` =============================================== ===============================================...

Assertion failure at openj9/runtime/compiler/env/VMJ9.cpp:5386: objectPointer

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The [assertion](https://github.com/eclipse-openj9/openj9/blob/e8bc291edfd92b7dca94d046674a1f4e3b536544/runtime/compiler/env/VMJ9.cpp#L5386) at `/home/jenkins/workspace/Build_JDK11_ppc64le_linux_Personal/openj9/runtime/compiler/env/VMJ9.cpp:5386: objectPointer` fails during `sanity.functional` test cases `cmdLineTester_jvmtitests_debug_3` and `cmdLineTester_jvmtitests_debug_openj9_none_SCC_8` on `ppc64le_linux` for Java 11. Both of these failures were triggered by jitdump recompilations after a #17773...

FormatFlagsConversionMismatchException when benchmark class name is exactly 5 characters long

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When running a microbenchmark with a benchmark class name of 5 characters, the following runtime exception occurs: ``` Exception in thread "main" java.lang.RuntimeException: java.util.FormatFlagsConversionMismatchException: Conversion = s, Flags = 0...