[MCHECKSTYLE-163] Add integration test

src/it/MCHECKSTYLE-163/checkstyle.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+
+<!--
+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.
+-->
+<!DOCTYPE module PUBLIC
+          "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+          "https://checkstyle.org/dtds/configuration_1_3.dtd">
+<module name="Checker">
+  <property name="severity" value="warning"/>
+  <module name="TreeWalker">
+    <module name="IllegalThrows"/>
+  </module>
+</module>

src/it/MCHECKSTYLE-163/invoker.properties

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+# 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.
+
+invoker.goals=clean checkstyle:check

src/it/MCHECKSTYLE-163/pom.xml

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+<?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="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/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>org.apache.maven.plugins.checkstyle</groupId>
+  <artifactId>mcheckstyle-163</artifactId>
+  <version>1.0</version>
+  <url>https://issues.apache.org/jira/browse/MCHECKSTYLE-163</url>
+  <description>Test classpath resolution fails in mvn check:check when includeTestSourceDirectory = true</description>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.8.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-checkstyle-plugin</artifactId>
+        <version>@project.version@</version>
+        <configuration>
+          <configLocation>checkstyle.xml</configLocation>
+          <includeTestSourceDirectory>true</includeTestSourceDirectory>
+          <failsOnError>true</failsOnError>
+          <violationSeverity>info</violationSeverity>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>

src/it/MCHECKSTYLE-163/src/test/java/org/apache/maven/plugins/checkstyle/mcheckstyle163/Mcheckstyle163.java

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+/*
+ * 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.maven.plugins.checkstyle.mcheckstyle163;
+
+import org.junit.runners.model.InitializationError;
+
+public class Mcheckstyle163 {
+
+    public void shouldNotTriggerRedundantThrows() throws InitializationError {
+    }
+
+    public void shouldTriggerRedundantThrows() throws InitializationError, Exception {
+    }
+
+    public void workingDoesNotTriggerRedundantThrowsExample() throws IllegalArgumentException {
+    }
+
+    public void workingRedundantThrowsExample() throws IllegalArgumentException, Exception {
+    }
+
+}