Do not run server threads as daemon as it causes problems with the ex…

…ec-maven-plugin, fixes #276

daemon/src/main/java/org/mvndaemon/mvnd/daemon/Server.java

@@ -214,7 +214,6 @@ public void run() {
     static class DaemonThread extends Thread {
         public DaemonThread(Runnable target) {
             super(target);
-            setDaemon(true);
         }
     }
 

integration-tests/src/test/java/org/mvndaemon/mvnd/it/BootstrapPluginTest.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2020 the original author or authors.
+ *
+ * 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.
+ */
+package org.mvndaemon.mvnd.it;
+
+import java.io.IOException;
+import javax.inject.Inject;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.DisabledOnOs;
+import org.junit.jupiter.api.condition.OS;
+import org.mvndaemon.mvnd.assertj.TestClientOutput;
+import org.mvndaemon.mvnd.client.Client;
+import org.mvndaemon.mvnd.client.DaemonParameters;
+import org.mvndaemon.mvnd.junit.MvndTest;
+import org.mvndaemon.mvnd.junit.TestRegistry;
+
+import static org.junit.jupiter.api.Assertions.fail;
+
+@MvndTest(projectDir = "src/test/projects/bootstrap-plugin")
+@DisabledOnOs(OS.WINDOWS)
+public class BootstrapPluginTest {
+
+    @Inject
+    Client client;
+
+    @Inject
+    TestRegistry registry;
+
+    @Inject
+    DaemonParameters parameters;
+
+    @Test
+    void cleanInstall() throws IOException, InterruptedException {
+        assertDaemonRegistrySize(0);
+
+        for (int i = 0; i < 20; i++) {
+            final TestClientOutput output = new TestClientOutput();
+            try {
+                client.execute(output, "clean", "install", "-e", "-Dmvnd.log.level=DEBUG").assertSuccess();
+            } catch (Exception e) {
+                output.getMessages().forEach(System.out::println);
+                fail("Error", e);
+            }
+            assertDaemonRegistrySize(1);
+            Thread.sleep(100);
+        }
+    }
+
+    private void assertDaemonRegistrySize(int size) {
+        Assertions.assertThat(registry.getAll().size())
+                .as("Daemon registry size should be " + size)
+                .isEqualTo(size);
+    }
+}

integration-tests/src/test/projects/bootstrap-plugin/.mvn/maven.config

@@ -0,0 +1,3 @@
+-Dmaven.wagon.httpconnectionManager.ttlSeconds=120
+-Dmaven.wagon.http.retryHandler.requestSentEnabled=true
+-Dmaven.wagon.http.retryHandler.count=10

integration-tests/src/test/projects/bootstrap-plugin/bootstrap/pom.xml

@@ -0,0 +1,32 @@
+<!--
+
+    Copyright 2020 the original author or authors.
+
+    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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>org.reproducer</groupId>
+  <artifactId>bootstrap</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
+
+
+  <properties>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
+  </properties>
+
+</project>

integration-tests/src/test/projects/bootstrap-plugin/bootstrap/src/main/java/org/reproducer/BootstrapMain.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2020 Red Hat, Inc. and/or its affiliates.
+ *
+ * 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.
+ */
+
+package org.reproducer;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+
+public class BootstrapMain {
+
+    public static void main(String[] args) throws IOException {
+        File baseDir = new File(args[0]);
+
+        String vbMain = new String(readBytesFromInputStream(BootstrapMain.class.getResourceAsStream("Model.java")));
+        vbMain = vbMain.replaceAll("REPLACETHIS", "Hello world");
+
+        final Path file = Paths.get(baseDir.getAbsolutePath(),
+                                                        "target",
+                                                        "generated-sources",
+                                                        "bootstrap",
+                                                        "org", "reproducer", "Model.java");
+
+        try {
+            Files.deleteIfExists(file);
+            Files.createDirectories(file.getParent());
+            Files.copy(new ByteArrayInputStream(vbMain.getBytes()), file, StandardCopyOption.REPLACE_EXISTING);
+        } catch (IOException e) {
+            e.printStackTrace();
+            throw new RuntimeException("Unable to write file", e);
+        }
+    }
+
+    public static byte[] readBytesFromInputStream(InputStream input) throws IOException {
+        try {
+            byte[] buffer = createBytesBuffer(input);
+            ByteArrayOutputStream output = new ByteArrayOutputStream(buffer.length);
+
+            int n = 0;
+            while (-1 != (n = input.read(buffer))) {
+                output.write(buffer, 0, n);
+            }
+            return output.toByteArray();
+        } finally {
+            try {
+                input.close();
+            } catch (Exception e) {
+                // ignore
+            }
+        }
+    }
+
+    private static byte[] createBytesBuffer(InputStream input) throws IOException {
+        return new byte[Math.max(input.available(), 8192)];
+    }
+}

integration-tests/src/test/projects/bootstrap-plugin/bootstrap/src/main/resources/org/reproducer/Model.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2020 Red Hat, Inc. and/or its affiliates.
+ *
+ * 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.
+ */
+
+package org.reproducer;
+
+public class Model {
+
+    public static final String hello = "REPLACETHIS";
+
+}

integration-tests/src/test/projects/bootstrap-plugin/pom.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright 2020 the original author or authors.
+
+    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>mvn-bootstrap-plugin-reproducer</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <packaging>pom</packaging>
+
+  <properties>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
+  </properties>
+
+  <modules>
+    <module>bootstrap</module>
+    <module>startup</module>
+  </modules>
+
+</project>

integration-tests/src/test/projects/bootstrap-plugin/startup/pom.xml

@@ -0,0 +1,92 @@
+<!--
+
+    Copyright 2020 the original author or authors.
+
+    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.reproducer</groupId>
+  <artifactId>startup</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <properties>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.reproducer</groupId>
+      <artifactId>bootstrap</artifactId>
+      <version>1.0.0-SNAPSHOT</version>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <version>3.0.0</version>
+        <executions>
+          <execution>
+            <id>bootstrap</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>java</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+          <mainClass>org.reproducer.BootstrapMain</mainClass>
+          <cleanupDaemonThreads>false</cleanupDaemonThreads> <!-- cleanupDaemonThreads=false otherwise exec:java will try to shutdown common pool Thread[ForkJoinPool.commonPool-worker- threads -->
+          <arguments>
+            <argument>${project.basedir}</argument>
+          </arguments>
+          <!-- the following is used to provide a SLF4j binding to the ValidationBootstrapMain and related CP. Set src/test/resources/logback.xml root to DEBUG for debugging -->
+          <includePluginDependencies>true</includePluginDependencies>
+           <additionalClasspathElements>
+            <additionalClasspathElement>${project.basedir}/src/test/resources/</additionalClasspathElement>
+          </additionalClasspathElements>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <version>3.2.0</version>
+        <executions>
+          <execution>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>${project.build.directory}/generated-sources/bootstrap</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.8.1</version>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

integration-tests/src/test/projects/bootstrap-plugin/startup/src/main/java/org/reproducer/MainClass.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2020 Red Hat, Inc. and/or its affiliates.
+ *
+ * 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.
+ */
+
+package org.reproducer;
+
+public class MainClass {
+
+    public static void main(String[] args) {
+        String helloWorld = org.reproducer.Model.hello;
+        System.out.println(helloWorld);
+    }
+
+}