From d825edf280cdf15fefbcb08c596e86f36ef84569 Mon Sep 17 00:00:00 2001
From: Peter Lawrey <peter.lawrey@chronicle.software>
Date: Sun, 20 Sep 2026 12:08:51 +0100
Subject: [PATCH 1/3] FIX-292: Split tests between eight workers and serial
 exceptions

---
 .mvn/serial-tests.txt | 47 ++++++++++++++++++++++++++++
 pom.xml               | 72 +++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 117 insertions(+), 2 deletions(-)
 create mode 100644 .mvn/serial-tests.txt

diff --git a/.mvn/serial-tests.txt b/.mvn/serial-tests.txt
new file mode 100644
index 000000000..2ccc9026e
--- /dev/null
+++ b/.mvn/serial-tests.txt
@@ -0,0 +1,47 @@
+# Static FIX-292 isolation snapshot, 2026-09-20. Provisional entries require review before removal.
+# Open PRs #357
+net/openhft/chronicle/threads/BlockingEventLoopShutdownTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/BlockingEventLoopTest.java
+# Open PRs #358; affinity-or-global-handler
+net/openhft/chronicle/threads/DiskSpaceMonitorTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/EventGroupBadAffinityTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/EventGroupHandlerTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/EventGroupStressTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/EventGroupTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/EventLoopAdmissionTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/EventLoopConcurrencyStressTest.java
+# affinity-or-global-handler
+net/openhft/chronicle/threads/EventLoopsTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/HandlerAdmissionTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/HandlerRegistrationClosedExceptionTest.java
+# Open PRs #359
+net/openhft/chronicle/threads/LongPauserTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/LoopIntrospectionTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/MediumEventLoopTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/PauserTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/PauserTimeoutTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/StopVCloseTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/ThreadsTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/VanillaEventLoopTest.java
+# Open PRs #359
+net/openhft/chronicle/threads/YieldingPauserTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/internal/EventLoopStateRendererTest.java
+# references changed/named test fixture
+net/openhft/chronicle/threads/internal/ThreadsThreadHolderTest.java
diff --git a/pom.xml b/pom.xml
index dc444d1dc..70f5b0328 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,6 +25,8 @@
     <properties>
         <jacoco.line.coverage>0.7</jacoco.line.coverage>
         <jacoco.branch.coverage>0.6</jacoco.branch.coverage>
+        <chronicle.test.forkCount>8</chronicle.test.forkCount>
+        <chronicle.test.reuseForks>true</chronicle.test.reuseForks>
     </properties>
 
     <dependencyManagement>
@@ -167,8 +169,8 @@
                 <configuration>
                     <!-- Keep failures visible even when CI requests retries on the command line. -->
                     <rerunFailingTestsCount>0</rerunFailingTestsCount>
-                    <forkCount>4</forkCount>
-                    <reuseForks>true</reuseForks>
+                    <forkCount>1</forkCount>
+                    <reuseForks>false</reuseForks>
                     <runOrder>hourly</runOrder>
                 </configuration>
             </plugin>
@@ -255,6 +257,72 @@
                 </plugins>
             </build>
         </profile>
+        <profile>
+            <!-- Use -T1: forkCount is a limit per execution, not across reactor modules. -->
+            <id>chronicle-eight-default</id>
+            <activation>
+                <property>
+                    <name>!test</name>
+                </property>
+            </activation>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-surefire-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <id>default-test</id>
+                                <configuration>
+                                    <forkCount>${chronicle.test.forkCount}</forkCount>
+                                    <reuseForks>${chronicle.test.reuseForks}</reuseForks>
+                                    <excludes>
+                                        <exclude>**/*$*</exclude>
+                                    </excludes>
+                                    <excludesFile>${project.basedir}/.mvn/serial-tests.txt</excludesFile>
+                                </configuration>
+                            </execution>
+                            <execution>
+                                <id>serial-tests</id>
+                                <phase>test</phase>
+                                <goals>
+                                    <goal>test</goal>
+                                </goals>
+                                <configuration>
+                                    <forkCount>1</forkCount>
+                                    <reuseForks>false</reuseForks>
+                                    <!-- An empty list must select nothing, not Surefire's defaults. -->
+                                    <includes combine.self="override">
+                                        <include>%regex[^$]</include>
+                                    </includes>
+                                    <includesFile>${project.basedir}/.mvn/serial-tests.txt</includesFile>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+        <profile>
+            <id>test-serial</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-surefire-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <id>default-test</id>
+                                <configuration>
+                                    <forkCount>1</forkCount>
+                                    <reuseForks>false</reuseForks>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
     </profiles>
 
     <scm>

From 1341346c52ff2307d32dca1bbb81e4f88594d10c Mon Sep 17 00:00:00 2001
From: Peter Lawrey <peter.lawrey@chronicle.software>
Date: Sun, 20 Sep 2026 16:39:57 +0100
Subject: [PATCH 2/3] FIX-292: Reuse test workers and avoid repeated build
 phases

---
 .mvn/serial-tests.txt | 49 +++----------------------------------------
 pom.xml               | 22 +++++++++++++++++++
 2 files changed, 25 insertions(+), 46 deletions(-)

diff --git a/.mvn/serial-tests.txt b/.mvn/serial-tests.txt
index 2ccc9026e..deaceac53 100644
--- a/.mvn/serial-tests.txt
+++ b/.mvn/serial-tests.txt
@@ -1,47 +1,4 @@
-# Static FIX-292 isolation snapshot, 2026-09-20. Provisional entries require review before removal.
-# Open PRs #357
+# FIX-292: develop already uses four reused workers; retain only the observed eight-worker exception.
+# Reverse-order eight-worker run: lookupFindsSurvivingRunnerWhenEarlierRunnerIsRemoved recorded
+# 'Interrupted waiting for the worker' during shutdown. Keep this class separate pending its fixture repair.
 net/openhft/chronicle/threads/BlockingEventLoopShutdownTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/BlockingEventLoopTest.java
-# Open PRs #358; affinity-or-global-handler
-net/openhft/chronicle/threads/DiskSpaceMonitorTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/EventGroupBadAffinityTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/EventGroupHandlerTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/EventGroupStressTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/EventGroupTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/EventLoopAdmissionTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/EventLoopConcurrencyStressTest.java
-# affinity-or-global-handler
-net/openhft/chronicle/threads/EventLoopsTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/HandlerAdmissionTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/HandlerRegistrationClosedExceptionTest.java
-# Open PRs #359
-net/openhft/chronicle/threads/LongPauserTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/LoopIntrospectionTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/MediumEventLoopTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/PauserTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/PauserTimeoutTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/StopVCloseTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/ThreadsTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/VanillaEventLoopTest.java
-# Open PRs #359
-net/openhft/chronicle/threads/YieldingPauserTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/internal/EventLoopStateRendererTest.java
-# references changed/named test fixture
-net/openhft/chronicle/threads/internal/ThreadsThreadHolderTest.java
diff --git a/pom.xml b/pom.xml
index 70f5b0328..873f0f332 100644
--- a/pom.xml
+++ b/pom.xml
@@ -239,6 +239,28 @@
             </plugin>
 
         </plugins>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-source-plugin</artifactId>
+                    <executions>
+                        <execution>
+                            <id>attach-sources</id>
+                            <phase>none</phase>
+                        </execution>
+                        <!-- The package lifecycle has already generated sources; avoid repeating its earlier phases. -->
+                        <execution>
+                            <id>attach-sources-no-fork</id>
+                            <phase>package</phase>
+                            <goals>
+                                <goal>jar-no-fork</goal>
+                            </goals>
+                        </execution>
+                    </executions>
+                </plugin>
+            </plugins>
+        </pluginManagement>
     </build>
 
     <profiles>

From a5a473fb692e38666874963d01624957fea6390e Mon Sep 17 00:00:00 2001
From: Peter Lawrey <peter.lawrey@chronicle.software>
Date: Sun, 20 Sep 2026 17:03:25 +0100
Subject: [PATCH 3/3] FIX-292: Isolate tests exposed by platform CI

---
 .mvn/serial-tests.txt | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/.mvn/serial-tests.txt b/.mvn/serial-tests.txt
index deaceac53..9715f553e 100644
--- a/.mvn/serial-tests.txt
+++ b/.mvn/serial-tests.txt
@@ -1,4 +1,7 @@
-# FIX-292: develop already uses four reused workers; retain only the observed eight-worker exception.
-# Reverse-order eight-worker run: lookupFindsSurvivingRunnerWhenEarlierRunnerIsRemoved recorded
-# 'Interrupted waiting for the worker' during shutdown. Keep this class separate pending its fixture repair.
+# FIX-292: exceptions supported by observed local and platform CI failures.
+# BlockingEventLoopShutdownTest: local reverse-order shutdown warning.
+# Timing assertions failed on both Zing JDKs; retain their original assertions and timings in serial/fresh execution.
+# TeamCity builds: 1365949, 1365950
 net/openhft/chronicle/threads/BlockingEventLoopShutdownTest.java
+net/openhft/chronicle/threads/LongPauserTest.java
+net/openhft/chronicle/threads/YieldingPauserTest.java