RAT-369: Add checkstyle and spotbugs to build and generate a report

apache-rat-core/spotbugs_ignore.xml

@@ -0,0 +1,44 @@
+<?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.
+-->
+<FindBugsFilter>
+  <Match>
+    <!--
+    Convenience constructors that allow setting a charset are not available in Java8 for PrintStream.
+  -->
+    <Class name="org.apache.rat.Report"/>
+    <Bug pattern="DM_DEFAULT_ENCODING"/>
+  </Match>
+  <Match>
+    <!--
+    Convenience constructors that allow setting a charset are not available in Java8 for FileWriter.
+  -->
+    <Class name="org.apache.rat.annotation.AbstractLicenseAppender"/>
+    <Bug pattern="DM_DEFAULT_ENCODING"/>
+  </Match>
+  <Match>
+    <!--
+    Convenience constructors that allow setting a charset are not available in Java8 for FileReader.
+  -->
+    <Class name="org.apache.rat.document.impl.FileDocument"/>
+    <Bug pattern="DM_DEFAULT_ENCODING"/>
+  </Match>
+  <Match>
+    <Class name="org.apache.rat.document.impl.MonolithicFileDocument"/>
+    <Bug pattern="DM_DEFAULT_ENCODING"/>
+  </Match>
+</FindBugsFilter>

apache-rat-core/src/main/java/org/apache/rat/ImplementationException.java

@@ -19,7 +19,7 @@
 package org.apache.rat;
 
 /**
- * An exception thrown when there is an issue with the Configuration.
+ * An exception thrown when there is an issue with the configuration.
  */
 public class ImplementationException extends RuntimeException {
 

apache-rat-core/src/main/java/org/apache/rat/Report.java

@@ -277,7 +277,7 @@ static ReportConfiguration createConfiguration(String baseDirectory, CommandLine
                 if (url == null) {
                     ioSupplier = () -> Files.newInputStream(Paths.get(style[0]));
                 } else {
-                    ioSupplier = () -> url.openStream();
+                    ioSupplier = url::openStream;
                 }
                 configuration.setStyleSheet(ioSupplier);
             }
@@ -332,8 +332,7 @@ static FilenameFilter parseExclusions(List<String> excludes) {
     }
 
     static Options buildOptions() {
-        String licFilterValues = String.join(", ", 
-                Arrays.stream(LicenseFilter.values()).map(LicenseFilter::name).collect(Collectors.toList()));
+        String licFilterValues = Arrays.stream(LicenseFilter.values()).map(LicenseFilter::name).collect(Collectors.joining(", "));
 
         Options opts = new Options()
         .addOption(Option.builder().longOpt(DRY_RUN)

apache-rat-core/src/main/java/org/apache/rat/Reporter.java

@@ -26,6 +26,7 @@
 import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
 import java.io.Writer;
+import java.nio.charset.StandardCharsets;
 
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.transform.OutputKeys;
@@ -76,7 +77,7 @@ public Reporter(ReportConfiguration configuration) throws RatException {
         try {
             if (configuration.getReportable() != null) {
                 ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-                Writer outputWriter = new OutputStreamWriter(outputStream);
+                Writer outputWriter = new OutputStreamWriter(outputStream, StandardCharsets.UTF_8);
                 try (IXmlWriter writer = new XmlWriter(outputWriter)) {
                     statistic = new ClaimStatistic();
                     RatReport report = XmlReportFactory.createStandardReport(writer, statistic, configuration);

apache-rat-core/src/main/java/org/apache/rat/annotation/AbstractLicenseAppender.java

@@ -30,6 +30,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Writer;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.InvalidPathException;
 import java.nio.file.Path;
@@ -287,7 +288,7 @@ private boolean attachLicense(Writer writer, File document,
         BufferedReader br = null;
         try {
             fis = new FileInputStream(document);
-            br = new BufferedReader(new InputStreamReader(new BOMInputStream(fis)));
+            br = new BufferedReader(new InputStreamReader(new BOMInputStream(fis), StandardCharsets.UTF_8));
 
             if (!expectsHashPling
                     && !expectsAtEcho

apache-rat-core/src/main/java/org/apache/rat/api/ContentType.java

@@ -18,6 +18,7 @@
  */
 package org.apache.rat.api;
 
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
@@ -72,6 +73,6 @@ public String getSubType() {
      * @return not null
      */
     public Map<String, String> getParameters() {
-        return parameters;
+        return Collections.unmodifiableMap(parameters);
     }
 }

apache-rat-core/src/main/java/org/apache/rat/config/parameters/ComponentType.java

@@ -28,6 +28,6 @@ public enum ComponentType {
     MATCHER,
     /** A Parameter for example the "id" parameter found in every component */
     PARAMETER,
-    /** A parameter that is supplied by the environment.  Currently systems using builders have to handle seting this.  For example the list of matchers for the "MatcherRefBuilder" */
-    BULID_PARAMETER 
+    /** A parameter that is supplied by the environment.  Currently systems using builders have to handle setting this.  For example the list of matchers for the "MatcherRefBuilder" */
+    BUILD_PARAMETER
 }

apache-rat-core/src/main/java/org/apache/rat/config/parameters/Description.java

@@ -80,7 +80,7 @@ public Description(ComponentType type, String name, String desc, boolean isColle
         this.desc = desc;
         this.isCollection = isCollection;
         this.required = required;
-        if (type == ComponentType.BULID_PARAMETER) {
+        if (type == ComponentType.BUILD_PARAMETER) {
             Method m;
             try {
                 m = BuilderParams.class.getMethod(name);
@@ -275,7 +275,7 @@ public Method setter(Class<?> clazz) throws NoSuchMethodException, SecurityExcep
         case PARAMETER:
             return clazz.getMethod(methodName,
                     IHeaderMatcher.class.isAssignableFrom(childClass) ? IHeaderMatcher.Builder.class : childClass);
-        case BULID_PARAMETER:
+        case BUILD_PARAMETER:
             return clazz.getMethod(methodName, childClass);
         }
         // should not happen

apache-rat-core/src/main/java/org/apache/rat/configuration/XMLConfigurationReader.java

@@ -231,12 +231,12 @@ private void callSetter(Description desc, IHeaderMatcher.Builder builder, Object
     }
 
     private void processBuilderParams(Description description, IHeaderMatcher.Builder builder) {
-        for (Description desc : description.childrenOfType(ComponentType.BULID_PARAMETER)) {
+        for (Description desc : description.childrenOfType(ComponentType.BUILD_PARAMETER)) {
             Method m = builderParams.get(desc.getCommonName());
             try {
                 callSetter(desc, builder, m.invoke(builderParams));
             } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
-                ImplementationException.makeInstance(e);
+                throw ImplementationException.makeInstance(e);
             }
         }
     }
@@ -270,7 +270,7 @@ private BiPredicate<Node, Description> matcherChildNodeProcessor(AbstractBuilder
         return (child, childDescription) -> {
             switch (childDescription.getType()) {
             case LICENSE:
-            case BULID_PARAMETER:
+            case BUILD_PARAMETER:
                 throw new ConfigurationException(String.format(
                         "%s may not be used as an enclosed matcher.  %s '%s' found in '%s'", childDescription.getType(),
                         childDescription.getType(), childDescription.getCommonName(), description.getCommonName()));
@@ -411,7 +411,7 @@ private BiPredicate<Node, Description> licenseChildNodeProcessor(ILicense.Builde
                 throw new ConfigurationException(String.format(
                         "%s may not be enclosed in another license.  %s '%s' found in '%s'", childDescription.getType(),
                         childDescription.getType(), childDescription.getCommonName(), description.getCommonName()));
-            case BULID_PARAMETER:
+            case BUILD_PARAMETER:
                 break;
             case MATCHER:
                 AbstractBuilder b = parseMatcher(child);

apache-rat-core/src/main/java/org/apache/rat/configuration/XMLConfigurationWriter.java

@@ -285,7 +285,7 @@ void writeDescription(IXmlWriter writer, Description description, IHeaderMatcher
                     }
                 }
                 break;
-            case BULID_PARAMETER:
+            case BUILD_PARAMETER:
                 // ignore;
                 break;
             }

apache-rat-core/src/main/java/org/apache/rat/configuration/builders/MatcherRefBuilder.java

@@ -98,7 +98,7 @@ public static class IHeaderMatcherProxy implements IHeaderMatcher {
         private final String proxyId;
         private IHeaderMatcher wrapped;
 
-        @ConfigComponent(type = ComponentType.BULID_PARAMETER, name = "matcherMap", desc = "Map of matcher names to matcher instances")
+        @ConfigComponent(type = ComponentType.BUILD_PARAMETER, name = "matcherMap", desc = "Map of matcher names to matcher instances")
         private Map<String, IHeaderMatcher> matchers;
 
         /**

apache-rat-core/src/main/java/org/apache/rat/document/impl/ArchiveEntryDocument.java

@@ -25,6 +25,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
+import java.nio.charset.StandardCharsets;
 
 import org.apache.rat.api.Document;
 import org.apache.rat.api.MetaData;
@@ -60,7 +61,7 @@ public boolean isComposite() {
     }
 
     public Reader reader() throws IOException {
-        return new InputStreamReader(new ByteArrayInputStream(contents));
+        return new InputStreamReader(new ByteArrayInputStream(contents), StandardCharsets.UTF_8);
     }
 
 

apache-rat-core/src/main/java/org/apache/rat/document/impl/FileDocument.java

@@ -24,6 +24,8 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.Reader;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
 
 import org.apache.rat.api.Document;
 import org.apache.rat.api.MetaData;
@@ -61,7 +63,7 @@ public MetaData getMetaData() {
     }    
 
     public InputStream inputStream() throws IOException {
-        return new FileInputStream(file);
+        return Files.newInputStream(file.toPath());
     }
 
     /**

apache-rat-core/src/main/java/org/apache/rat/document/impl/MonolithicFileDocument.java

@@ -27,6 +27,7 @@
 import java.io.Reader;
 import java.net.URL;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
 
 import org.apache.rat.api.Document;
 
@@ -67,6 +68,6 @@ public Reader reader() throws IOException {
     }
 
      public InputStream inputStream() throws IOException {
-        return new FileInputStream(file);
+        return Files.newInputStream(file.toPath());
     }
 }

apache-rat-core/src/main/java/org/apache/rat/license/SimpleLicense.java

@@ -39,7 +39,7 @@
 @ConfigComponent(type = ComponentType.LICENSE)
 public class SimpleLicense implements ILicense {
 
-    @ConfigComponent(type = ComponentType.BULID_PARAMETER, desc = "The defined license families.", name = "licenseFamilies")
+    @ConfigComponent(type = ComponentType.BUILD_PARAMETER, desc = "The defined license families.", name = "licenseFamilies")
     private ILicenseFamily family;
 
     @ConfigComponent(type = ComponentType.PARAMETER, desc = "The matcher for this license.", required = true)

apache-rat-plugin/spotbugs_ignore.xml

@@ -0,0 +1,26 @@
+<?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.
+-->
+<FindBugsFilter>
+  <Match>
+    <!--
+    Convenience constructors that allow setting a charset are not available in Java8 for FileReader.
+  -->
+    <Class name="org.apache.rat.mp.util.ignore.GlobIgnoreMatcher"/>
+    <Bug pattern="DM_DEFAULT_ENCODING"/>
+  </Match>
+</FindBugsFilter>

apache-rat-plugin/src/main/java/org/apache/rat/mp/util/ignore/GlobIgnoreMatcher.java

@@ -28,6 +28,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 import java.util.Optional;
 
@@ -115,7 +116,7 @@ public static boolean isComment(final String line) {
     }
 
     public List<String> getExclusionLines() {
-        return exclusionLines;
+        return Collections.unmodifiableList(exclusionLines);
     }
 
     @Override

apache-rat-tasks/spotbugs_ignore.xml

@@ -0,0 +1,26 @@
+<?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.
+-->
+<FindBugsFilter>
+  <Match>
+    <!--
+    Convenience constructors that allow setting a charset are not available in Java8 for PrintStream.
+  -->
+    <Class name="org.apache.rat.anttasks.Report"/>
+    <Bug pattern="DM_DEFAULT_ENCODING"/>
+  </Match>
+</FindBugsFilter>

apache-rat-tasks/src/main/java/org/apache/rat/anttasks/Report.java

@@ -18,11 +18,10 @@
 */
 package org.apache.rat.anttasks;
 
-import java.io.File;
-import java.io.FilenameFilter;
-import java.io.PrintWriter;
+import java.io.*;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -319,10 +318,9 @@ public void log(Level level, String msg) {
             case ERROR:
                 write(Project.MSG_ERR, msg);
                 break;
-			case OFF:
-				break;
-			default:
-				break;
+            case OFF:
+            default:
+                break;
             }
         }
 

apache-rat-tasks/src/main/java/org/apache/rat/anttasks/ResourceCollectionContainer.java

@@ -23,6 +23,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.Reader;
+import java.nio.charset.StandardCharsets;
 
 import org.apache.rat.api.Document;
 import org.apache.rat.api.MetaData;
@@ -69,7 +70,7 @@ private ResourceDocument(Resource resource) {
         @Override
         public Reader reader() throws IOException {
             final InputStream in = resource.getInputStream();
-            return new InputStreamReader(in);
+            return new InputStreamReader(in, StandardCharsets.UTF_8);
         }
 
         @Override