During the review of JDK-8355003, I suggested to Igor that notify_all in CompilationPolicyUtils::Queue::pop is redundant. But now that I remove it in leyden/premain, some CDS tests start to timeout. Need to figure out what is going on there.

$ JTREG_KEYWORDS=\!external-dep CONF=linux-x86_64-server-fastdebug make images test TEST=runtime/cds

TEST: runtime/cds/appcds/aotCode/AOTCodeFlags.java
[2025-06-02T21:11:13.634236147Z] Waiting for completion for process 1640202
[2025-06-02T21:11:13.634388206Z] Waiting for completion finished for process 1640202
[output file: AOTCodeCompressedOopsTest.production.1.log 5531 bytes]
Command line: [/home/shade/trunks/shipilev-leyden/build/linux-x86_64-server-fastdebug/images/jdk/bin/java -cp /home/shade/trunks/shipilev-leyden/build/linux-x86_64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_runtime_cds/classes/15/runtime/cds/appcds/aotCode/AOTCodeCompressedOopsTest.d:/home/shade/trunks/shipilev-leyden/test/hotspot/jtreg/runtime/cds/appcds/aotCode:/home/shade/trunks/shipilev-leyden/build/linux-x86_64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_runtime_cds/classes/15/test/lib:/home/shade/trunks/shipilev-leyden/build/linux-x86_64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_runtime_cds/classes/15/test/setup_aot:/home/shade/Install/jtreg-7.5.1+1/lib/jtreg.jar:/home/shade/Install/jtreg-7.5.1+1/lib/junit-platform-console-standalone-1.11.0.jar:/home/shade/Install/jtreg-7.5.1+1/lib/testng-7.3.0.jar:/home/shade/Install/jtreg-7.5.1+1/lib/guice-5.1.0.jar:/home/shade/Install/jtreg-7.5.1+1/lib/jcommander-1.82.jar -XX:MaxRAMPercentage=1.5625 -Dtest.boot.jdk=/home/shade/Install/jdk24u-ea -Djava.io.tmpdir=/home/shade/trunks/shipilev-leyden/build/linux-x86_64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_runtime_cds/tmp -Xmx6g -XX:HeapBaseMinAddress=32g -XX:+UnlockDiagnosticVMOptions -Xlog:aot=info -Xlog:aot+codecache+init=debug -Xlog:aot+codecache+exit=debug -XX:+UnlockDiagnosticVMOptions -XX:VerifyArchivedFields=2 -Xlog:arguments,aot,cds:file=AOTCodeCompressedOopsTest.production.2.log::filesize=0 -cp app.jar -XX:AOTMode=on -XX:AOTCache=AOTCodeCompressedOopsTest.aot JavacBenchApp 10 ]
[2025-06-02T21:11:13.641600322Z] Gathering output for process 1642464

TEST RESULT: Error. "driver" action timed out with a timeout of 480 seconds on agent 25