The following test failed to compile in the JDK20 CI:

compiler/c2/irTests/TestMulNodeIdealization.java

Here's a snippet from the log file:

#section:compile
----------messages:(7/342)----------
command: compile /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests/TestMulNodeIdealization.java
reason: .class file out of date or does not exist
started: Sat Nov 19 12:53:32 UTC 2022
Mode: agentvm
Agent id: 3
finished: Sat Nov 19 12:53:33 UTC 2022
elapsed time (seconds): 1.683
----------configuration:(13/1977)----------
Boot Layer (javac runtime environment)
  class path: /opt/mach5/mesos/work_dir/jib-master/install/jtreg/7/1/bundles/jtreg-7+1.zip/jtreg/lib/jtreg.jar
  patch: java.base /opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/patches/java.base

javac compilation environment
  source path: /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests
               /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/lib
               /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg
  class path: /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests
               /opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/compiler/c2/irTests/TestMulNodeIdealization.d
               /opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/test/lib
               /opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2

----------rerun:(32/7825)*----------
cd /opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/scratch/1 && \\
HOME=/tmp/sparky-temp-home-3018052469186330153/user_home \\
JIB_DATA_DIR=/opt/mach5/mesos/work_dir/jib-master \\
JIB_HOME=/opt/mach5/mesos/work_dir/jib-master/install/com/oracle/java/jib/jib/3.0-SNAPSHOT/jib-3.0-20221020.215446-499-distribution.zip/jib-3.0-SNAPSHOT-distribution \\
JTREG_KEYWORDS="!headful" \\
JTREG_VERBOSE=fail,error,time \\
LC_ALL=C \\
PATH=/bin:/usr/bin:/usr/sbin \\
TEST_IMAGE_DIR=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/linux-x64-debug.test \\
_JVM_DWARF_PATH=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/linux-x64-debug.jdk_symbols/jdk-20/fastdebug \\
    /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/linux-x64-debug.jdk/jdk-20/fastdebug/bin/javac \\
        -J-XX:MaxRAMPercentage=4.16667 \\
        -J-Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/tmp \\
        -J-Dtest.vm.opts='-XX:MaxRAMPercentage=4.16667 -Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/tmp' \\
        -J-Dtest.tool.vm.opts='-J-XX:MaxRAMPercentage=4.16667 -J-Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/tmp' \\
        -J-Dtest.compiler.opts= \\
        -J-Dtest.java.opts=-XX:UseAVX=0 \\
        -J-Dtest.jdk=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/linux-x64-debug.jdk/jdk-20/fastdebug \\
        -J-Dcompile.jdk=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/linux-x64-debug.jdk/jdk-20/fastdebug \\
        -J-Dtest.timeout.factor=4.0 \\
        -J-Dtest.nativepath=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/linux-x64-debug.test/hotspot/jtreg/native \\
        -J-Dtest.root=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg \\
        -J-Dtest.name=compiler/c2/irTests/TestMulNodeIdealization.java \\
        -J-Dtest.file=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests/TestMulNodeIdealization.java \\
        -J-Dtest.src=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests \\
        -J-Dtest.src.path=/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests:/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/lib:/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg \\
        -J-Dtest.classes=/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/compiler/c2/irTests/TestMulNodeIdealization.d \\
        -J-Dtest.class.path=/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/compiler/c2/irTests/TestMulNodeIdealization.d:/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/test/lib:/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2 \\
        -J-Dtest.class.path.prefix=/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/compiler/c2/irTests/TestMulNodeIdealization.d:/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests:/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/test/lib:/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2 \\
        -d /opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/compiler/c2/irTests/TestMulNodeIdealization.d \\
        -sourcepath /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests:/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/lib:/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg \\
        -classpath /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests:/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/compiler/c2/irTests/TestMulNodeIdealization.d:/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2/test/lib:/opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S94930/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e5b206f-e951-433b-abf1-b3520baacf54/runs/2d0f3a7b-7b12-4e3d-9b80-fd6f9b21df91/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_vector_1/classes/2 /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/c2/irTests/TestMulNodeIdealization.java
----------direct:(17/1456)----------
/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/lib/jdk/test/lib/process/ProcessTools.java:817: warning: [removal] ThreadDeath in java.lang has been deprecated and marked for removal
            if (e instanceof ThreadDeath) {
                             ^
/opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/hotspot/jtreg/compiler/lib/ir_framework/driver/irmatching/parser/HotSpotPidFileParser.java:75: error: incompatible types: inference variable C has incompatible equality constraints TreeSet<E>,Object,R
                                                                  .collect(Collectors.toCollection(TreeSet::new));
                                                                          ^
  where C,T#1,E,R,A,T#2 are type-variables:
    C extends Collection<T#1> declared in method <T#1,C>toCollection(Supplier<C>)
    T#1 extends Object declared in method <T#1,C>toCollection(Supplier<C>)
    E extends Object declared in class TreeSet
    R extends Object declared in method <R,A>collect(Collector<? super T#2,A,R>)
    A extends Object declared in method <R,A>collect(Collector<? super T#2,A,R>)
    T#2 extends Object declared in interface Stream
Note: /opt/mach5/mesos/work_dir/jib-master/install/jdk-20+25-1855/src.full/open/test/lib/jdk/test/lib/process/ProcessTools.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
1 warning
result: Failed. Compilation failed: Compilation failed