Various cleanups and modernizations

tycho-core/.settings/org.eclipse.jdt.ui.prefs

@@ -12,7 +12,7 @@ sp_cleanup.add_missing_nls_tags=false
 sp_cleanup.add_missing_override_annotations=true
 sp_cleanup.add_missing_override_annotations_interface_methods=true
 sp_cleanup.add_serial_version_id=false
-sp_cleanup.also_simplify_lambda=false
+sp_cleanup.also_simplify_lambda=true
 sp_cleanup.always_use_blocks=true
 sp_cleanup.always_use_parentheses_in_expressions=false
 sp_cleanup.always_use_this_for_non_static_field_access=false
@@ -27,7 +27,7 @@ sp_cleanup.collection_cloning=false
 sp_cleanup.comparing_on_criteria=false
 sp_cleanup.comparison_statement=false
 sp_cleanup.controlflow_merge=false
-sp_cleanup.convert_functional_interfaces=false
+sp_cleanup.convert_functional_interfaces=true
 sp_cleanup.convert_to_enhanced_for_loop=false
 sp_cleanup.convert_to_enhanced_for_loop_if_loop_var_used=false
 sp_cleanup.convert_to_switch_expressions=false
@@ -133,7 +133,7 @@ sp_cleanup.use_autoboxing=false
 sp_cleanup.use_blocks=false
 sp_cleanup.use_blocks_only_for_return_and_throw=false
 sp_cleanup.use_directly_map_method=false
-sp_cleanup.use_lambda=false
+sp_cleanup.use_lambda=true
 sp_cleanup.use_parentheses_in_expressions=false
 sp_cleanup.use_string_is_blank=false
 sp_cleanup.use_this_for_non_static_field_access=false

tycho-core/src/main/java/org/eclipse/tycho/core/TychoProjectManager.java

@@ -292,9 +292,7 @@ public Collection<Path> getProjectDependencies(MavenProject project) throws Exce
             // again!
             Optional<ResolvedArtifactKey> bundle = mavenBundleResolver.resolveMavenBundle(project, session, "org.osgi",
                     "org.osgi.service.component.annotations", "1.3.0");
-            bundle.ifPresent(key -> {
-                writeLocation(key.getLocation(), dependencySet);
-            });
+            bundle.ifPresent(key -> writeLocation(key.getLocation(), dependencySet));
         }
         return dependencySet;
     }

tycho-core/src/main/java/org/eclipse/tycho/p2/metadata/ArtifactFacadeProxy.java

@@ -38,26 +38,32 @@ public ArtifactFacadeProxy(IArtifactFacade proxy) {
         this.proxy = proxy;
     }
 
+    @Override
     public File getLocation() {
         return proxy.getLocation();
     }
 
+    @Override
     public String getGroupId() {
         return proxy.getGroupId();
     }
 
+    @Override
     public String getArtifactId() {
         return proxy.getArtifactId();
     }
 
+    @Override
     public String getClassifier() {
         return proxy.getClassifier();
     }
 
+    @Override
     public String getVersion() {
         return proxy.getVersion();
     }
 
+    @Override
     public String getPackagingType() {
         return proxy.getPackagingType();
     }

tycho-core/src/main/java/org/eclipse/tycho/p2/publisher/BundleDependenciesAction.java

@@ -98,20 +98,11 @@ protected void createAdviceFileAdvice(BundleDescription bundleDescription, IPubl
 
         Map<String, String> advice = new LinkedHashMap<>();
 
-        try {
-            InputStream is = new BufferedInputStream(new FileInputStream(adviceFile));
-            try {
-                Properties props = new Properties();
-                props.load(is);
-                for (Map.Entry<Object, Object> p : props.entrySet()) {
-                    advice.put((String) p.getKey(), (String) p.getValue());
-                }
-            } finally {
-                try {
-                    is.close();
-                } catch (IOException secondary) {
-                    // secondary exception
-                }
+        try (InputStream is = new BufferedInputStream(new FileInputStream(adviceFile))) {
+            Properties props = new Properties();
+            props.load(is);
+            for (Map.Entry<Object, Object> p : props.entrySet()) {
+                advice.put((String) p.getKey(), (String) p.getValue());
             }
         } catch (IOException e) {
             // TODO log

tycho-core/src/main/java/org/eclipse/tycho/p2/resolver/FileTargetDefinitionContent.java

@@ -60,6 +60,7 @@ public FileTargetDefinitionContent(IProvisioningAgent agent, File location) {
         artifactRepository.setLocation(location.toURI());
     }
 
+    @Override
     public IMetadataRepository getMetadataRepository() {
         preload(null);
         return metadataRepository;
@@ -100,6 +101,7 @@ public synchronized void preload(IProgressMonitor monitor) {
         loaded = true;
     }
 
+    @Override
     public IArtifactRepository getArtifactRepository() {
         preload(null);
         return artifactRepository;
@@ -110,7 +112,7 @@ private Map<IArtifactDescriptor, IInstallableUnit> getRepositoryContent() {
     }
 
     private static void readFeatures(File path, BiConsumer<IArtifactDescriptor, IInstallableUnit> consumer,
-            IProgressMonitor monitor) throws ResolverException {
+            IProgressMonitor monitor) {
         PublisherInfo publisherInfo = new PublisherInfo();
         publisherInfo.setArtifactOptions(IPublisherInfo.A_INDEX);
         if (path.isDirectory()) {

tycho-core/src/main/java/org/eclipse/tycho/p2resolver/P2DependencyResolver.java

@@ -28,7 +28,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
-import java.util.Objects;
 import java.util.Set;
 import java.util.TreeMap;
 import java.util.function.Function;
@@ -220,9 +219,7 @@ public TargetPlatform computePreliminaryTargetPlatform(MavenSession session, Mav
             tpConfiguration
                     .setIgnoreLocalArtifacts(configuration.getIgnoreLocalArtifacts() == LocalArtifactHandling.ignore);
             tpConfiguration.setReferencedRepositoryMode(configuration.getReferencedRepositoryMode());
-            TargetPlatform result = tpFactory.createTargetPlatform(tpConfiguration, ee, reactorProjects,
-                    reactorProject);
-            return result;
+            return tpFactory.createTargetPlatform(tpConfiguration, ee, reactorProjects, reactorProject);
         });
     }
 
@@ -348,10 +345,9 @@ private DependencyArtifacts doResolveDependencies(MavenSession session, MavenPro
         for (String additionalBundle : additionalBundles) {
             resolver.addAdditionalBundleDependency(additionalBundle);
         }
-        projectManager.getBndTychoProject(project).ifPresent(processor -> {
-            AdditionalBundleRequirementsInstallableUnitProvider.getBndClasspathRequirements(processor)
-                    .forEach(req -> resolver.addRequirement(req));
-        });
+        projectManager.getBndTychoProject(project)
+                .ifPresent(processor -> AdditionalBundleRequirementsInstallableUnitProvider
+                        .getBndClasspathRequirements(processor).forEach(resolver::addRequirement));
         // get reactor project with prepared optional dependencies // TODO use original IU and have the resolver create the modified IUs
         ReactorProject optionalDependencyPreparedProject = getThisReactorProject(session, project, configuration);
 

tycho-p2-director-plugin/.settings/org.eclipse.jdt.core.prefs

@@ -26,7 +26,7 @@ org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
+org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=warning
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
 org.eclipse.jdt.core.compiler.problem.fatalOptionalError=disabled
 org.eclipse.jdt.core.compiler.problem.fieldHiding=ignore
@@ -44,7 +44,7 @@ org.eclipse.jdt.core.compiler.problem.missingDefaultCase=ignore
 org.eclipse.jdt.core.compiler.problem.missingDeprecatedAnnotation=ignore
 org.eclipse.jdt.core.compiler.problem.missingEnumCaseDespiteDefault=disabled
 org.eclipse.jdt.core.compiler.problem.missingHashCodeMethod=ignore
-org.eclipse.jdt.core.compiler.problem.missingOverrideAnnotation=ignore
+org.eclipse.jdt.core.compiler.problem.missingOverrideAnnotation=warning
 org.eclipse.jdt.core.compiler.problem.missingOverrideAnnotationForInterfaceMethodImplementation=enabled
 org.eclipse.jdt.core.compiler.problem.missingSerialVersion=ignore
 org.eclipse.jdt.core.compiler.problem.missingSynchronizedOnInheritedMethod=ignore
@@ -66,7 +66,7 @@ org.eclipse.jdt.core.compiler.problem.potentiallyUnclosedCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.rawTypeReference=warning
 org.eclipse.jdt.core.compiler.problem.redundantNullAnnotation=warning
 org.eclipse.jdt.core.compiler.problem.redundantNullCheck=ignore
-org.eclipse.jdt.core.compiler.problem.redundantSpecificationOfTypeArguments=ignore
+org.eclipse.jdt.core.compiler.problem.redundantSpecificationOfTypeArguments=warning
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore

tycho-p2-director-plugin/src/main/java/org/eclipse/tycho/plugins/p2/director/DirectorMojo.java

@@ -400,7 +400,7 @@ private String getRepositories() {
             if (repositories == null) {
                 return projectRepository.getAbsoluteFile().toURI().toASCIIString();
             }
-            List<String> list = new ArrayList<String>();
+            List<String> list = new ArrayList<>();
             for (String repo : repositories.split(",")) {
                 list.add(repo.trim());
             }
@@ -441,7 +441,7 @@ private File getProjectRepository() {
     }
 
     private Map<String, String> getPropertyMap(String csvPropertiesMap, Map<String, String> properties) {
-        LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();
+        LinkedHashMap<String, String> map = new LinkedHashMap<>();
         if (csvPropertiesMap != null) {
             for (String keyValue : csvPropertiesMap.split(",")) {
                 String[] split = keyValue.split("=");
@@ -458,7 +458,7 @@ private Map<String, String> getPropertyMap(String csvPropertiesMap, Map<String,
     }
 
     private List<String> getUnitParameterList(String csvlist, List<IU> units) {
-        List<String> list = new ArrayList<String>();
+        List<String> list = new ArrayList<>();
         if (csvlist != null) {
             for (String iu : csvlist.split(",")) {
                 list.add(iu.trim());
@@ -479,13 +479,6 @@ private List<String> getUnitParameterList(String csvlist, List<IU> units) {
         return list;
     }
 
-    private void add(String key, String value, List<String> args) {
-        if (metadatarepositories != null) {
-            args.add("-metadatarepository");
-            args.add(metadatarepositories);
-        }
-    }
-
     public static final class IU {
         String id;
         String version;

tycho-p2-director-plugin/src/main/java/org/eclipse/tycho/plugins/tar/TarGzArchiver.java

@@ -29,6 +29,7 @@
 
 import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
 import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
+import org.apache.commons.compress.archivers.tar.TarConstants;
 import org.apache.commons.compress.compressors.gzip.GzipCompressorOutputStream;
 import org.apache.maven.plugin.logging.Log;
 import org.apache.maven.plugin.logging.SystemStreamLog;
@@ -70,12 +71,11 @@ public void addDirectory(File directory) {
     public void createArchive() throws IOException {
         validate();
         log.info("Building tar: " + destFile);
-        TarArchiveOutputStream tarStream = null;
-        try {
-            destFile.getAbsoluteFile().getParentFile().mkdirs();
-            GzipCompressorOutputStream gzipStream = new GzipCompressorOutputStream(
-                    new BufferedOutputStream(new FileOutputStream(destFile)));
-            tarStream = new TarArchiveOutputStream(gzipStream, "UTF-8");
+        destFile.getAbsoluteFile().getParentFile().mkdirs();
+        try (GzipCompressorOutputStream gzipStream = new GzipCompressorOutputStream(
+                new BufferedOutputStream(new FileOutputStream(destFile)));
+                TarArchiveOutputStream tarStream = new TarArchiveOutputStream(gzipStream, "UTF-8");) {
+
             // allow "long" file paths (> 100 chars)
             tarStream.setLongFileMode(TarArchiveOutputStream.LONGFILE_POSIX);
             tarStream.setBigNumberMode(TarArchiveOutputStream.BIGNUMBER_POSIX);
@@ -84,10 +84,6 @@ public void createArchive() throws IOException {
                     addToTarRecursively(sourceDir, child, tarStream);
                 }
             }
-        } finally {
-            if (tarStream != null) {
-                tarStream.close();
-            }
         }
     }
 
@@ -123,7 +119,7 @@ private TarArchiveEntry createTarEntry(File tarRootDir, File source) throws IOEx
         TarArchiveEntry tarEntry;
         if (isSymbolicLink(source) && resolvesBelow(source, tarRootDir)) {
             // only create symlink entry if link target is inside archive
-            tarEntry = new TarArchiveEntry(pathInTar, TarArchiveEntry.LF_SYMLINK);
+            tarEntry = new TarArchiveEntry(pathInTar, TarConstants.LF_SYMLINK);
             tarEntry.setLinkName(slashify(getRelativeSymLinkTarget(source, source.getParentFile())));
         } else {
             tarEntry = new TarArchiveEntry(source, pathInTar);

tycho-p2-director-plugin/src/test/java/org/eclipse/tycho/plugins/tar/TarGzArchiverTest.java

@@ -204,16 +204,13 @@ private void createSymbolicLink(File link, Path linkTarget) {
     }
 
     private Map<String, TarArchiveEntry> getTarEntries() throws IOException, FileNotFoundException {
-        TarArchiveInputStream tarStream = new TarArchiveInputStream(
-                new GzipCompressorInputStream(new FileInputStream(tarGzArchive)));
         Map<String, TarArchiveEntry> entries = new HashMap<>();
-        try {
+        try (TarArchiveInputStream tarStream = new TarArchiveInputStream(
+                new GzipCompressorInputStream(new FileInputStream(tarGzArchive)))) {
             TarArchiveEntry tarEntry = null;
             while ((tarEntry = tarStream.getNextTarEntry()) != null) {
                 entries.put(tarEntry.getName(), tarEntry);
             }
-        } finally {
-            tarStream.close();
         }
         return entries;
     }