spotbugs

Author: yegor256

pom.xml

@@ -308,6 +308,25 @@ SOFTWARE.
   </profiles>
   <build>
     <plugins>
+      <plugin>
+        <groupId>com.github.spotbugs</groupId>
+        <artifactId>spotbugs-maven-plugin</artifactId>
+        <version>4.8.6.6</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+        <dependencies>
+          <dependency>
+            <groupId>com.github.spotbugs</groupId>
+            <artifactId>spotbugs</artifactId>
+            <version>4.8.6</version>
+          </dependency>
+        </dependencies>
+      </plugin>
       <plugin>
         <artifactId>maven-surefire-plugin</artifactId>
         <!-- version from the parent pom -->

src/main/java/org/eolang/lints/XmirKey.java

@@ -60,11 +60,14 @@ final class XmirKey implements Text {
 
     @Override
     public String asString() {
-        final String key;
         final Path parent = this.base.relativize(this.xmir.getParent());
-        final String name = XmirKey.XMIR_EXT.matcher(
-            this.xmir.getFileName().toString()
-        ).replaceAll("");
+        final Path path = this.xmir.getFileName();
+        String fname = "";
+        if (path != null) {
+            fname = path.toString();
+        }
+        final String name = XmirKey.XMIR_EXT.matcher(fname).replaceAll("");
+        final String key;
         if (parent.toString().isEmpty()) {
             key = name;
         } else {

src/main/java/org/eolang/lints/misc/LtTestNotVerb.java

@@ -68,36 +68,29 @@ public final class LtTestNotVerb implements Lint<XML> {
     private static final Pattern KEBAB = Pattern.compile("-");
 
     /**
-     * NLP pipeline.
+     * Properties of NLP pipeline.
      */
-    private final StanfordCoreNLP pipeline;
+    private final Properties properties;
 
     /**
      * Ctor.
      * @param props Pipeline properties
      */
     public LtTestNotVerb(final Properties props) {
-        this(new StanfordCoreNLP(props));
+        this.properties = new Properties(props);
     }
 
     /**
      * Ctor.
      */
     public LtTestNotVerb() {
-        this(defaults());
-    }
-
-    /**
-     * Primary ctor.
-     * @param pipe NLP pipeline
-     */
-    public LtTestNotVerb(final StanfordCoreNLP pipe) {
-        this.pipeline = pipe;
+        this(LtTestNotVerb.defaults());
     }
 
     @Override
     public Collection<Defect> defects(final XML xmir) throws IOException {
         final Collection<Defect> defects = new LinkedList<>();
+        final StanfordCoreNLP pipeline = new StanfordCoreNLP(this.properties);
         for (final XML object : xmir.nodes("/program[metas/meta[head='tests']]/objects/o[@name]")) {
             final String name = object.xpath("@name").get(0);
             final CoreDocument doc = new CoreDocument(
@@ -109,7 +102,7 @@ public Collection<Defect> defects(final XML xmir) throws IOException {
                     .map(s -> s.toLowerCase(Locale.ROOT))
                     .collect(Collectors.joining(" "))
             );
-            this.pipeline.annotate(doc);
+            pipeline.annotate(doc);
             if (
                 !"VBZ".equals(
                     doc.tokens().get(1).get(CoreAnnotations.PartOfSpeechAnnotation.class)