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commit 87b1ebe4a59b23179d023471b91cd6977cecf814
Author: Claus Ibsen <claus.ib...@gmail.com>
AuthorDate: Sat Jun 15 21:35:03 2019 +0200

    CAMEL-13647: Allow to do autowrire by classpath. Quick and dirty prototype.
---
 catalog/camel-main-maven-plugin/pom.xml            | 154 +++++++++
 .../src/main/docs/camel-main-maven-plugin.adoc     |  35 ++
 .../java/org/apache/camel/maven/AutowireMojo.java  | 372 +++++++++++++++++++++
 .../src/main/resources/META-INF/LICENSE.txt        | 203 +++++++++++
 .../src/main/resources/META-INF/NOTICE.txt         |  11 +
 catalog/pom.xml                                    |   1 +
 .../camel/support/PropertyBindingSupport.java      |   2 +
 examples/camel-example-main/pom.xml                |  19 ++
 8 files changed, 797 insertions(+)

diff --git a/catalog/camel-main-maven-plugin/pom.xml 
b/catalog/camel-main-maven-plugin/pom.xml
new file mode 100644
index 0000000..f5e0d54
--- /dev/null
+++ b/catalog/camel-main-maven-plugin/pom.xml
@@ -0,0 +1,154 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You 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:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns="http://maven.apache.org/POM/4.0.0";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/maven-v4_0_0.xsd";>
+    <modelVersion>4.0.0</modelVersion>
+
+    <!-- NOTE parent need to point to camel maven plugins -->
+    <parent>
+        <groupId>org.apache.camel</groupId>
+        <artifactId>maven-plugins</artifactId>
+        <version>3.0.0-SNAPSHOT</version>
+        <relativePath>../../tooling/maven</relativePath>
+    </parent>
+
+    <artifactId>camel-main-maven-plugin</artifactId>
+    <packaging>maven-plugin</packaging>
+    <name>Camel :: Catalog :: Camel Main Maven Plugin</name>
+    <description>Maven plugin with tools for Camel Main support</description>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.apache.camel</groupId>
+                <artifactId>tooling-parent</artifactId>
+                <version>${project.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-core</artifactId>
+        </dependency>
+        <!-- we extend the exec-maven-plugin for this camel maven plugin -->
+        <dependency>
+            <groupId>org.codehaus.mojo</groupId>
+            <artifactId>exec-maven-plugin</artifactId>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.apache.maven</groupId>
+                    <artifactId>maven-plugin-descriptor</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>com.google.collections</groupId>
+                    <artifactId>google-collections</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-plugin-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-compat</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven.plugin-tools</groupId>
+            <artifactId>maven-plugin-annotations</artifactId>
+        </dependency>
+
+        <!-- to scan classpath -->
+        <dependency>
+            <groupId>org.reflections</groupId>
+            <artifactId>reflections</artifactId>
+            <version>0.9.11</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>com.google.guava</groupId>
+                    <artifactId>guava</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>28.0-jre</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-main</artifactId>
+        </dependency>
+
+        <!-- camel-catalog -->
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-catalog</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-catalog-maven</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <!-- logging -->
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-plugin-plugin</artifactId>
+                <configuration>
+                    <mojoDependencies>
+                        <dep>org.codehaus.mojo:exec-maven-plugin</dep>
+                        <dep>org.apache.maven:maven-plugin-api</dep>
+                    </mojoDependencies>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git 
a/catalog/camel-main-maven-plugin/src/main/docs/camel-main-maven-plugin.adoc 
b/catalog/camel-main-maven-plugin/src/main/docs/camel-main-maven-plugin.adoc
new file mode 100644
index 0000000..912ac3e
--- /dev/null
+++ b/catalog/camel-main-maven-plugin/src/main/docs/camel-main-maven-plugin.adoc
@@ -0,0 +1,35 @@
+= Camel Main Maven Plugin
+
+The Camel Main Maven Plugin supports the following goals
+
+ - camel-main:autowire - To pre-scan your project and prepare autowiring by 
classpath scanning
+
+== camel:autowire
+
+To pre-scan your project and prepare autowiring by classpath scanning.
+
+----
+mvn camel-main:autowire
+----
+
+You can also enable the plugin to automatic run as part of the build to catch 
these errors.
+
+[source,xml]
+----
+<plugin>
+  <groupId>org.apache.camel</groupId>
+  <artifactId>camel-main-maven-plugin</artifactId>
+  <executions>
+    <execution>
+      <phase>process-classes</phase>
+      <goals>
+        <goal>autowire</goal>
+      </goals>
+    </execution>
+  </executions>
+</plugin>
+----
+
+The phase determines when the plugin runs. In the sample above the phase is 
`process-classes` which runs after
+the compilation of the main source code.
+
diff --git 
a/catalog/camel-main-maven-plugin/src/main/java/org/apache/camel/maven/AutowireMojo.java
 
b/catalog/camel-main-maven-plugin/src/main/java/org/apache/camel/maven/AutowireMojo.java
new file mode 100644
index 0000000..b57c8fd
--- /dev/null
+++ 
b/catalog/camel-main-maven-plugin/src/main/java/org/apache/camel/maven/AutowireMojo.java
@@ -0,0 +1,372 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.camel.maven;
+
+import java.io.File;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.stream.Collectors;
+
+import org.apache.camel.catalog.CamelCatalog;
+import org.apache.camel.catalog.DefaultCamelCatalog;
+import org.apache.camel.catalog.JSonSchemaHelper;
+import org.apache.camel.catalog.maven.MavenVersionManager;
+import org.apache.camel.util.IOHelper;
+import org.apache.maven.artifact.Artifact;
+import org.apache.maven.artifact.factory.ArtifactFactory;
+import org.apache.maven.artifact.repository.ArtifactRepository;
+import org.apache.maven.artifact.resolver.ArtifactResolutionRequest;
+import org.apache.maven.artifact.resolver.ArtifactResolver;
+import org.apache.maven.artifact.resolver.filter.ArtifactFilter;
+import org.apache.maven.artifact.resolver.filter.ExcludesArtifactFilter;
+import 
org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
+import org.apache.maven.artifact.versioning.VersionRange;
+import org.apache.maven.model.Dependency;
+import org.apache.maven.model.Exclusion;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.plugins.annotations.Component;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.apache.maven.plugins.annotations.ResolutionScope;
+import org.apache.maven.project.MavenProject;
+import org.codehaus.mojo.exec.AbstractExecMojo;
+import org.reflections.Reflections;
+import org.reflections.scanners.SubTypesScanner;
+import org.reflections.util.ClasspathHelper;
+import org.reflections.util.ConfigurationBuilder;
+
+/**
+ * Pre scans your project and prepare autowiring by classpath scanning
+ */
+@Mojo(name = "autowire", threadSafe = true, requiresDependencyResolution = 
ResolutionScope.COMPILE)
+public class AutowireMojo extends AbstractExecMojo {
+
+    /**
+     * Whether to allow downloading Camel catalog version from the internet. 
This is needed if the project
+     * uses a different Camel version than this plugin is using by default.
+     */
+    @Parameter(property = "camel.downloadVersion", defaultValue = "true")
+    private boolean downloadVersion;
+
+    /**
+     * Whether to log the classpath when starting
+     */
+    @Parameter(property = "camel.logClasspath", defaultValue = "false")
+    protected boolean logClasspath;
+
+    @Component
+    private ArtifactFactory artifactFactory;
+
+    @Component
+    private ArtifactResolver artifactResolver;
+
+    @Parameter(property = "localRepository")
+    private ArtifactRepository localRepository;
+
+    @Parameter(property = "project.remoteArtifactRepositories")
+    private List remoteRepositories;
+
+    private ClassLoader classLoader;
+
+    // CHECKSTYLE:OFF
+    @Override
+    public void execute() throws MojoExecutionException, MojoFailureException {
+        CamelCatalog catalog = new DefaultCamelCatalog();
+        // add activemq as known component
+        catalog.addComponent("activemq", 
"org.apache.activemq.camel.component.ActiveMQComponent");
+        // enable loading other catalog versions dynamically
+        catalog.setVersionManager(new MavenVersionManager());
+        // enable caching
+        catalog.enableCache();
+
+        String detectedVersion = findCamelVersion(project);
+        if (detectedVersion != null) {
+            getLog().info("Detected Camel version used in project: " + 
detectedVersion);
+        }
+
+        if (downloadVersion) {
+            String catalogVersion = catalog.getCatalogVersion();
+            String version = findCamelVersion(project);
+            if (version != null && !version.equals(catalogVersion)) {
+                // the project uses a different Camel version so attempt to 
load it
+                getLog().info("Downloading Camel version: " + version);
+                boolean loaded = catalog.loadVersion(version);
+                if (!loaded) {
+                    getLog().warn("Error downloading Camel version: " + 
version);
+                }
+            }
+        }
+
+        if (catalog.getLoadedVersion() != null) {
+            getLog().info("Pre-scanning using downloaded Camel version: " + 
catalog.getLoadedVersion());
+        } else {
+            getLog().info("Pre-scanning using Camel version: " + 
catalog.getCatalogVersion());
+        }
+
+        // find all Camel components on classpath and check in the 
camel-catalog for all component options
+        // then check each option if its a complex type and an interface
+        // and if so scan class-path and find the single class implementing 
this interface
+        // write this to 
META-INF/services/org/apache/camel/autowire-by-classpath
+
+        // find all Camel components on classpath
+        Set<String> components = resolveCamelComponentsFromClasspath();
+        if (components.isEmpty()) {
+            getLog().warn("No Camel components discovered in classpath");
+        } else {
+            getLog().info("Discovered " + components.size() + " Camel 
components from classpath: " + components);
+        }
+
+        Reflections reflections = new Reflections(new ConfigurationBuilder()
+                .addUrls(ClasspathHelper.forClassLoader(classLoader))
+                .addClassLoader(classLoader)
+                .setScanners(new SubTypesScanner()));
+
+        List<String> autowires = new ArrayList<>();
+
+        for (String componentName : components) {
+getLog().info("Autowiring Camel component: " + componentName);
+            String json = catalog.componentJSonSchema(componentName);
+            if (json == null) {
+                getLog().warn("Cannot find component JSon metadata for 
component: " + componentName);
+                continue;
+            }
+
+
+
+            List<Map<String, String>> rows = 
JSonSchemaHelper.parseJsonSchema("componentProperties", json, true);
+            Set<String> names = JSonSchemaHelper.getNames(rows);
+            for (String name : names) {
+                Map<String, String> row = JSonSchemaHelper.getRow(rows, name);
+                String type = row.get("type");
+                String javaType = safeJavaType(row.get("javaType"));
+                if ("object".equals(type)) {
+                    // resolve javatype as class
+                    try {
+                        Class clazz = classLoader.loadClass(javaType);
+                        if (clazz.isInterface()) {
+                            Set<Class<?>> classes = 
reflections.getSubTypesOf(clazz);
+                            // filter classes to not be interfaces or not a 
top level class
+                            classes = classes.stream().filter(c -> 
!c.isInterface() && c.getEnclosingClass() == null).collect(Collectors.toSet());
+                            if (classes.size() == 1) {
+                                Class cls = classes.iterator().next();
+                                if (isValidAutowireClass(cls)) {
+                                    String line = "camel.component." + 
componentName + "." + name + "=#class:" + cls;
+                                    getLog().debug(line);
+                                    autowires.add(line);
+                                }
+                            } else if (classes.size() > 1) {
+                                getLog().debug("Found " + classes.size() + " 
for autowire: " + componentName + "." + name + " -> " + classes);
+                            }
+                        }
+
+                    } catch (Exception e) {
+                        getLog().warn("Cannot load class: " + name, e);
+                        // ignore
+                    }
+                }
+            }
+        }
+
+        if (!autowires.isEmpty()) {
+            // write the file
+            getLog().info("" + autowires);
+        }
+    }
+
+
+    protected boolean isValidAutowireClass(Class clazz) {
+        // skip all from Apache Camel as they would be default anyway
+        return !clazz.getName().startsWith("org.apache.camel");
+    }
+
+    protected String safeJavaType(String javaType) {
+        int pos = javaType.indexOf('<');
+        if (pos > 0) {
+            return javaType.substring(0, pos);
+        }
+        return javaType;
+    }
+
+    // autowire
+    // quartz2.xxxx=ddddd.
+    //
+
+    protected Set<String> resolveCamelComponentsFromClasspath() throws 
MojoFailureException {
+        Set<String> components = new TreeSet<>();
+        try {
+            classLoader = getClassLoader();
+            Enumeration<URL> en = 
classLoader.getResources("META-INF/services/org/apache/camel/component.properties");
+            while (en.hasMoreElements()) {
+                URL url = en.nextElement();
+                InputStream is = (InputStream) url.getContent();
+                Properties prop = new Properties();
+                prop.load(is);
+                String comps = prop.getProperty("components");
+                if (comps != null) {
+                    String[] parts = comps.split("\\s+");
+                    components.addAll(Arrays.asList(parts));
+                }
+                IOHelper.close(is);
+            }
+        } catch (Throwable e) {
+            // error
+            throw new MojoFailureException("Error during scanning", e);
+        }
+        return components;
+    }
+
+    private static String findCamelVersion(MavenProject project) {
+        Dependency candidate = null;
+
+        List list = project.getDependencies();
+        for (Object obj : list) {
+            Dependency dep = (Dependency) obj;
+            if ("org.apache.camel".equals(dep.getGroupId())) {
+                if ("camel-core".equals(dep.getArtifactId())) {
+                    // favor camel-core
+                    candidate = dep;
+                    break;
+                } else {
+                    candidate = dep;
+                }
+            }
+        }
+        if (candidate != null) {
+            return candidate.getVersion();
+        }
+
+        return null;
+    }
+
+    /**
+     * Set up a classloader for scanning
+     */
+    private ClassLoader getClassLoader() throws MalformedURLException, 
MojoExecutionException {
+        Set<Artifact> deps = project.getArtifacts();
+        deps.addAll(getAllNonTestScopedDependencies());
+
+        Set<URL> classpathURLs = new LinkedHashSet<>();
+        for (Artifact dep : deps) {
+            File file = dep.getFile();
+            if (file != null) {
+                classpathURLs.add(file.toURI().toURL());
+            }
+        }
+
+        if (logClasspath) {
+            getLog().info("Classpath:");
+            for (URL url : classpathURLs) {
+                getLog().info("  " + url.getFile().toString());
+            }
+        }
+        return new URLClassLoader(classpathURLs.toArray(new 
URL[classpathURLs.size()]));
+    }
+
+    private Collection<Artifact> getAllNonTestScopedDependencies() throws 
MojoExecutionException {
+        List<Artifact> answer = new ArrayList<>();
+
+        for (Artifact artifact : getAllDependencies()) {
+
+            // do not add test artifacts
+            if (!artifact.getScope().equals(Artifact.SCOPE_TEST)) {
+
+                if ("google-collections".equals(artifact.getArtifactId())) {
+                    // skip this as we conflict with guava
+                    continue;
+                }
+
+                if (!artifact.isResolved()) {
+                    ArtifactResolutionRequest req = new 
ArtifactResolutionRequest();
+                    req.setArtifact(artifact);
+                    req.setResolveTransitively(true);
+                    req.setLocalRepository(localRepository);
+                    req.setRemoteRepositories(remoteRepositories);
+                    artifactResolver.resolve(req);
+                }
+
+                answer.add(artifact);
+            }
+        }
+        return answer;
+    }
+
+    // generic method to retrieve all the transitive dependencies
+    private Collection<Artifact> getAllDependencies() throws 
MojoExecutionException {
+        List<Artifact> artifacts = new ArrayList<>();
+
+        for (Iterator<?> dependencies = project.getDependencies().iterator(); 
dependencies.hasNext();) {
+            Dependency dependency = (Dependency)dependencies.next();
+
+            String groupId = dependency.getGroupId();
+            String artifactId = dependency.getArtifactId();
+
+            VersionRange versionRange;
+            try {
+                versionRange = 
VersionRange.createFromVersionSpec(dependency.getVersion());
+            } catch (InvalidVersionSpecificationException e) {
+                throw new MojoExecutionException("unable to parse version", e);
+            }
+
+            String type = dependency.getType();
+            if (type == null) {
+                type = "jar";
+            }
+            String classifier = dependency.getClassifier();
+            boolean optional = dependency.isOptional();
+            String scope = dependency.getScope();
+            if (scope == null) {
+                scope = Artifact.SCOPE_COMPILE;
+            }
+
+            Artifact art = 
this.artifactFactory.createDependencyArtifact(groupId, artifactId, versionRange,
+                    type, classifier, scope, null, optional);
+
+            if (scope.equalsIgnoreCase(Artifact.SCOPE_SYSTEM)) {
+                art.setFile(new File(dependency.getSystemPath()));
+            }
+
+            List<String> exclusions = new ArrayList<>();
+            for (Exclusion exclusion : dependency.getExclusions()) {
+                exclusions.add(exclusion.getGroupId() + ":" + 
exclusion.getArtifactId());
+            }
+
+            ArtifactFilter newFilter = new ExcludesArtifactFilter(exclusions);
+
+            art.setDependencyFilter(newFilter);
+
+            artifacts.add(art);
+        }
+
+        return artifacts;
+    }
+
+
+}
diff --git 
a/catalog/camel-main-maven-plugin/src/main/resources/META-INF/LICENSE.txt 
b/catalog/camel-main-maven-plugin/src/main/resources/META-INF/LICENSE.txt
new file mode 100644
index 0000000..6b0b127
--- /dev/null
+++ b/catalog/camel-main-maven-plugin/src/main/resources/META-INF/LICENSE.txt
@@ -0,0 +1,203 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
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+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
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+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
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+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
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+          pertain to any part of the Derivative Works, in at least one
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+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
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+   7. Disclaimer of Warranty. Unless required by applicable law or
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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+
diff --git 
a/catalog/camel-main-maven-plugin/src/main/resources/META-INF/NOTICE.txt 
b/catalog/camel-main-maven-plugin/src/main/resources/META-INF/NOTICE.txt
new file mode 100644
index 0000000..2e215bf
--- /dev/null
+++ b/catalog/camel-main-maven-plugin/src/main/resources/META-INF/NOTICE.txt
@@ -0,0 +1,11 @@
+   =========================================================================
+   ==  NOTICE file corresponding to the section 4 d of                    ==
+   ==  the Apache License, Version 2.0,                                   ==
+   ==  in this case for the Apache Camel distribution.                    ==
+   =========================================================================
+
+   This product includes software developed by
+   The Apache Software Foundation (http://www.apache.org/).
+
+   Please read the different LICENSE files present in the licenses directory of
+   this distribution.
diff --git a/catalog/pom.xml b/catalog/pom.xml
index c5d77e5..d3178ac 100644
--- a/catalog/pom.xml
+++ b/catalog/pom.xml
@@ -46,6 +46,7 @@
         <!-- tooling that depends on catalog -->
         <module>camel-route-parser</module>
         <module>camel-report-maven-plugin</module>
+        <module>camel-main-maven-plugin</module>
     </modules>
 
 </project>
diff --git 
a/core/camel-support/src/main/java/org/apache/camel/support/PropertyBindingSupport.java
 
b/core/camel-support/src/main/java/org/apache/camel/support/PropertyBindingSupport.java
index 9f84c43..7298242 100644
--- 
a/core/camel-support/src/main/java/org/apache/camel/support/PropertyBindingSupport.java
+++ 
b/core/camel-support/src/main/java/org/apache/camel/support/PropertyBindingSupport.java
@@ -298,6 +298,7 @@ public final class PropertyBindingSupport {
      * @param callback      optional callback when a property was auto wired
      * @return              true if one ore more properties was auto wired
      */
+    @Deprecated
     public static boolean 
autowireInterfacePropertiesFromClasspath(CamelContext camelContext, Object 
target,
                                                                    boolean 
bindNullOnly, boolean deepNesting, OnAutowiring callback) {
         try {
@@ -312,6 +313,7 @@ public final class PropertyBindingSupport {
         return false;
     }
 
+    @Deprecated
     private static boolean 
doAutowireInterfacePropertiesFromClasspath(CamelContext camelContext, Object 
target, Set<Object> parents,
                                                                       boolean 
bindNullOnly, boolean deepNesting, OnAutowiring callback) throws Exception {
 
diff --git a/examples/camel-example-main/pom.xml 
b/examples/camel-example-main/pom.xml
index 2d05078..384af5f 100644
--- a/examples/camel-example-main/pom.xml
+++ b/examples/camel-example-main/pom.xml
@@ -51,6 +51,15 @@
             <groupId>org.apache.camel</groupId>
             <artifactId>camel-quartz2</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-jms</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.activemq</groupId>
+            <artifactId>artemis-jms-client</artifactId>
+            <version>2.9.0</version>
+        </dependency>
 
         <!-- logging -->
         <dependency>
@@ -87,6 +96,16 @@
                     
<mainClass>org.apache.camel.example.MyApplication</mainClass>
                 </configuration>
             </plugin>
+
+            <plugin>
+                <groupId>org.apache.camel</groupId>
+                <artifactId>camel-main-maven-plugin</artifactId>
+                <version>${project.version}</version>
+                <configuration>
+                    <logClasspath>true</logClasspath>
+                </configuration>
+            </plugin>
+
         </plugins>
     </build>
 

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