GH-132: Fix race condition when referencing the same archived dependencies in multiple places

.gitignore

@@ -9,7 +9,7 @@ target/
 .attach*
 
 # Stuff that I generate when I have lost all hope in the world
-/build.log
+/*.log
 temp/
 
 # Version backups after running ./mvnw versions:set

src/it/gh-132-duplicate-maven-dependencies/invoker.properties

@@ -0,0 +1,17 @@
+#
+# Copyright (C) 2023 - 2024, Ashley Scopes.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+invoker.goals=clean verify --projects some-project --also-make

src/it/gh-132-duplicate-maven-dependencies/pom.xml

@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2023 - 2024, Ashley Scopes.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.example</groupId>
+  <artifactId>some-parent</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  <packaging>pom</packaging>
+
+  <modules>
+    <module>some-dependency-1</module>
+    <module>some-dependency-2</module>
+    <module>some-dependency-3</module>
+    <module>some-dependency-4</module>
+    <module>some-project</module>
+  </modules>
+
+  <properties>
+    <junit.version>5.10.1</junit.version>
+    <protobuf.version>4.26.0</protobuf.version>
+    <proto-google-common-protos.version>2.37.0</proto-google-common-protos.version>
+
+    <maven-compiler-plugin.version>3.11.0</maven-compiler-plugin.version>
+    <maven-surefire-plugin.version>3.2.2</maven-surefire-plugin.version>
+
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.google.protobuf</groupId>
+        <artifactId>protobuf-java</artifactId>
+        <version>${protobuf.version}</version>
+        <scope>compile</scope>
+      </dependency>
+
+      <dependency>
+        <groupId>com.google.api.grpc</groupId>
+        <artifactId>proto-google-common-protos</artifactId>
+        <version>${proto-google-common-protos.version}</version>
+        <scope>compile</scope>
+      </dependency>
+
+      <dependency>
+        <groupId>org.junit.jupiter</groupId>
+        <artifactId>junit-jupiter</artifactId>
+        <version>${junit.version}</version>
+        <scope>test</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>${maven-compiler-plugin.version}</version>
+        </plugin>
+
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>${maven-surefire-plugin.version}</version>
+        </plugin>
+
+        <plugin>
+          <groupId>@project.groupId@</groupId>
+          <artifactId>@project.artifactId@</artifactId>
+          <version>@project.version@</version>
+
+          <configuration>
+            <protocVersion>${protobuf.version}</protocVersion>
+          </configuration>
+
+          <executions>
+            <execution>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+            </execution>
+          </executions>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>

src/it/gh-132-duplicate-maven-dependencies/some-dependency-1/pom.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2023 - 2024, Ashley Scopes.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.example</groupId>
+    <artifactId>some-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
+  <artifactId>some-dependency-1</artifactId>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+      <scope>compile</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-common-protos</artifactId>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+
+</project>

src/it/gh-132-duplicate-maven-dependencies/some-dependency-2/pom.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2023 - 2024, Ashley Scopes.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.example</groupId>
+    <artifactId>some-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
+  <artifactId>some-dependency-2</artifactId>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+
+</project>

src/it/gh-132-duplicate-maven-dependencies/some-dependency-3/pom.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2023 - 2024, Ashley Scopes.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.example</groupId>
+    <artifactId>some-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
+  <artifactId>some-dependency-3</artifactId>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+      <scope>compile</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-common-protos</artifactId>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+
+</project>

src/it/gh-132-duplicate-maven-dependencies/some-dependency-4/pom.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2023 - 2024, Ashley Scopes.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.example</groupId>
+    <artifactId>some-parent</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
+  <artifactId>some-dependency-4</artifactId>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+
+</project>

src/it/gh-132-duplicate-maven-dependencies/some-project/invoker.properties

@@ -0,0 +1,17 @@
+#
+# Copyright (C) 2023 - 2024, Ashley Scopes.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+invoker.goals = clean package