CCM NG:

- Several bug fixes for potenial bugs found by FindBugs
- Created StaticThemeProvider class


git-svn-id: https://svn.libreccm.org/ccm/ccm_ng@5075 8810af33-2d31-482b-a856-94f89814c4df

ccm-core/src/main/java/com/arsdigita/ui/admin/usersgroupsroles/roles/RolesController.java

@@ -7,6 +7,7 @@ import org.libreccm.security.RoleManager;
 import org.libreccm.security.RoleMembership;
 import org.libreccm.security.RoleRepository;
 
+import java.io.Serializable;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -19,7 +20,9 @@ import javax.transaction.Transactional;
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @RequestScoped
-public class RolesController {
+public class RolesController implements Serializable {
+
+    private static final long serialVersionUID = 4127664283856716723L;
 
     @Inject
     private PartyRepository partyRepo;
@@ -70,8 +73,8 @@ public class RolesController {
     protected void assignRoleToParty(final Role role, final Party party) {
 
         final Party assignee = partyRepo
-        .findById(party.getPartyId())
+            .findById(party.getPartyId())
-        .orElseThrow(() -> new IllegalArgumentException(String
+            .orElseThrow(() -> new IllegalArgumentException(String
             .format("No Party with ID %d in the database.",
                     party.getPartyId())));
 
@@ -85,4 +88,3 @@ public class RolesController {
     }
 
 }
- 

ccm-core/src/main/java/org/libreccm/categorization/CategoryRepository.java

@@ -163,7 +163,7 @@ public class CategoryRepository extends AbstractEntityRepository<Long, Category>
         final String[] tokens = normalizedPath.split("/");
         Category current = domain.getRoot();
         for (final String token : tokens) {
-            if (current.getSubCategories() == null) {
+            if (current.getSubCategories().isEmpty()) {
                 return Optional.empty();
             }
             final Optional<Category> result = current.getSubCategories()

ccm-core/src/main/java/org/libreccm/configuration/ConfigurationManager.java

@@ -27,11 +27,20 @@ import org.libreccm.modules.Module;
 import org.libreccm.security.AuthorizationRequired;
 import org.libreccm.security.RequiresPrivilege;
 
+import java.io.Serializable;
+
 import javax.enterprise.context.RequestScoped;
 import javax.inject.Inject;
 import javax.transaction.Transactional;
+
 import java.lang.reflect.Field;
-import java.util.*;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.ServiceLoader;
+import java.util.SortedSet;
+import java.util.TreeSet;
 import java.util.stream.Collectors;
 
 /**
@@ -40,7 +49,9 @@ import java.util.stream.Collectors;
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @RequestScoped
-public class ConfigurationManager {
+public class ConfigurationManager implements Serializable {
+
+    private static final long serialVersionUID = 5453012565110339303L;
 
     private static final Logger LOGGER = LogManager.getLogger(
         ConfigurationManager.class);
@@ -378,7 +389,7 @@ public class ConfigurationManager {
                                  settingName,
                                  setting.getValue());
                     field.set(conf, setting.getValue());
-                } catch(IllegalAccessException ex) {
+                } catch (IllegalAccessException ex) {
                     LOGGER.warn(
                         "Failed to set value of configuration class \"{}\". "
                             + "Ignoring.",

ccm-core/src/main/java/org/libreccm/core/AbstractEntityRepository.java

@@ -18,8 +18,13 @@
  */
 package org.libreccm.core;
 
-import org.apache.logging.log4j.LogManager;
+
-import org.apache.logging.log4j.Logger;
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
 
 import javax.inject.Inject;
 import javax.persistence.EntityGraph;
@@ -29,7 +34,6 @@ import javax.persistence.criteria.CriteriaBuilder;
 import javax.persistence.criteria.CriteriaQuery;
 import javax.persistence.criteria.Root;
 import javax.transaction.Transactional;
-import java.util.*;
 
 /**
  * A base class providing common method needed by every repository.
@@ -38,13 +42,12 @@ import java.util.*;
  * @param <K> Type of the primary key of the entity
  * @param <E> Type of the entity.
  */
-public abstract class AbstractEntityRepository<K, E> {
+public abstract class AbstractEntityRepository<K, E> implements Serializable {
 
-    private static final Logger LOGGER = LogManager.getLogger(
+    private static final long serialVersionUID = 8462548002420023652L;
-            AbstractEntityRepository.class);
 
     protected static final String FETCH_GRAPH_HINT_KEY
-                                  = "javax.persistence.fetchgraph";
+                                      = "javax.persistence.fetchgraph";
 
     /**
      * The {@link EntityManager} instance to use. Provided by the container via
@@ -83,7 +86,7 @@ public abstract class AbstractEntityRepository<K, E> {
      * @param query The query from which the result is retrieved.
      *
      * @return An {@link Optional} instance wrapping the first result of the
-     * query. If there is no result the {@code Optional} is empty.
+     *         query. If there is no result the {@code Optional} is empty.
      */
     protected Optional<E> getSingleResult(final TypedQuery<E> query) {
         final List<E> result = query.getResultList();
@@ -104,12 +107,13 @@ public abstract class AbstractEntityRepository<K, E> {
      * @param entityGraphName The name of the named entity graph.
      *
      * @return A mutable copy of the named entity graph identified by the
-     * provided name or {@code null} if there is no such named entity graph.
+     *         provided name or {@code null} if there is no such named entity
+     *         graph.
      */
     @SuppressWarnings("unchecked")
     public EntityGraph<E> createEntityGraph(final String entityGraphName) {
         return (EntityGraph<E>) entityManager.createEntityGraph(
-                entityGraphName);
+            entityGraphName);
     }
 
     /**
@@ -117,7 +121,7 @@ public abstract class AbstractEntityRepository<K, E> {
      * a repository class overwrite this method.
      *
      * @return The {@code Class} of the Entity which are managed by this
-     * repository.
+     *         repository.
      */
     public abstract Class<E> getEntityClass();
 
@@ -127,7 +131,8 @@ public abstract class AbstractEntityRepository<K, E> {
      * @param entityId The ID of the entity to retrieve.
      *
      * @return An {@link Optional} containing the entity identified by the
-     * provided ID or am empty {@link Optional} if there is no such entity.
+     *         provided ID or am empty {@link Optional} if there is no such
+     *         entity.
      */
     @Transactional(Transactional.TxType.REQUIRED)
     public Optional<E> findById(final K entityId) {
@@ -141,7 +146,7 @@ public abstract class AbstractEntityRepository<K, E> {
 
         @SuppressWarnings("unchecked")
         final EntityGraph<E> entityGraph = (EntityGraph<E>) entityManager.
-                getEntityGraph(entityGraphName);
+            getEntityGraph(entityGraphName);
         return findById(entityId, entityGraph);
     }
 
@@ -161,7 +166,7 @@ public abstract class AbstractEntityRepository<K, E> {
      * responsible for.
      *
      * @return The list of entities in the database which are of the type
-     * provided by {@link #getEntityClass()}.
+     *         provided by {@link #getEntityClass()}.
      */
     @Transactional(Transactional.TxType.REQUIRED)
     public List<E> findAll() {
@@ -174,7 +179,7 @@ public abstract class AbstractEntityRepository<K, E> {
     public List<E> findAll(final String entityGraphName) {
         @SuppressWarnings("unchecked")
         final EntityGraph<E> entityGraph = (EntityGraph<E>) entityManager
-                .getEntityGraph(entityGraphName);
+            .getEntityGraph(entityGraphName);
 
         return findAll(entityGraph);
     }
@@ -188,9 +193,9 @@ public abstract class AbstractEntityRepository<K, E> {
 
     public CriteriaQuery<E> createCriteriaQuery() {
         final CriteriaBuilder criteriaBuilder = entityManager
-                .getCriteriaBuilder();
+            .getCriteriaBuilder();
         final CriteriaQuery<E> criteriaQuery = criteriaBuilder.createQuery(
-                getEntityClass());
+            getEntityClass());
         final Root<E> root = criteriaQuery.from(getEntityClass());
         return criteriaQuery.select(root);
     }
@@ -208,8 +213,8 @@ public abstract class AbstractEntityRepository<K, E> {
                                         final String graphName) {
         @SuppressWarnings("unchecked")
         final EntityGraph<E> entityGraph = (EntityGraph< E>) entityManager
-                .getEntityGraph(
+            .getEntityGraph(
-                        graphName);
+                graphName);
         return executeCriteriaQuery(criteriaQuery, entityGraph);
     }
 
@@ -228,7 +233,7 @@ public abstract class AbstractEntityRepository<K, E> {
      * @param entity The entity to check.
      *
      * @return {@code true} if the entity is new (isn't in the database yet),
-     * {@code false} otherwise.
+     *         {@code false} otherwise.
      */
     public abstract boolean isNew(final E entity);
 

ccm-core/src/main/java/org/libreccm/files/NIOFileSystemAdapter.java

@@ -23,7 +23,9 @@ import org.libreccm.configuration.ConfigurationManager;
 import javax.annotation.PostConstruct;
 import javax.enterprise.context.RequestScoped;
 import javax.inject.Inject;
+
 import java.io.*;
+import java.nio.charset.Charset;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -78,14 +80,17 @@ public class NIOFileSystemAdapter implements FileSystemAdapter {
             throw new InsufficientPermissionsException(path);
         }
 
-        final FileReader fileReader;
+        final InputStreamReader reader;
         try {
-            fileReader = new FileReader(nioPath.toFile());
+            final FileInputStream inputStream = new FileInputStream(
+                nioPath.toFile());
+            reader = new InputStreamReader(inputStream,
+                                           Charset.forName("UTF-8"));
         } catch (FileNotFoundException ex) {
             throw new FileDoesNotExistException(path, ex);
         }
 
-        return fileReader;
+        return reader;
     }
 
     @Override
@@ -107,14 +112,17 @@ public class NIOFileSystemAdapter implements FileSystemAdapter {
             throw new InsufficientPermissionsException(path);
         }
 
-        final FileWriter fileWriter;
+        final OutputStreamWriter writer;
         try {
-            fileWriter = new FileWriter(nioPath.toFile());
+            final FileOutputStream outputStream = new FileOutputStream(nioPath
+                .toFile());
+            writer = new OutputStreamWriter(outputStream,
+                                            Charset.forName("UTF-8"));
         } catch (IOException ex) {
             throw new FileAccessException(path, ex);
         }
 
-        return fileWriter;
+        return writer;
     }
 
     @Override

ccm-core/src/main/java/org/libreccm/l10n/GlobalizationHelper.java

@@ -25,6 +25,8 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.libreccm.configuration.ConfigurationManager;
 
+import java.io.Serializable;
+
 import javax.enterprise.context.RequestScoped;
 import javax.inject.Inject;
 import javax.servlet.http.HttpServletRequest;
@@ -68,7 +70,9 @@ import java.util.ResourceBundle;
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @RequestScoped
-public class GlobalizationHelper {
+public class GlobalizationHelper implements Serializable {
+
+    private static final long serialVersionUID = 3988918294651460360L;
 
     private static final Logger LOGGER = LogManager
         .getLogger(GlobalizationHelper.class);
@@ -76,7 +80,7 @@ public class GlobalizationHelper {
     private static final String LANG_PARAM = "lang";
 
     @Inject
-    private HttpServletRequest request;
+    private transient HttpServletRequest request;
 
     @Inject
     private ConfigurationManager confManager;

ccm-core/src/main/java/org/libreccm/l10n/ui/LocalizedStringEditor.java

@@ -1,7 +1,6 @@
 package org.libreccm.l10n.ui;
 
 import com.vaadin.data.provider.QuerySortOrder;
-import com.vaadin.server.SerializableSupplier;
 import com.vaadin.ui.CustomComponent;
 import com.vaadin.ui.Grid;
 import org.libreccm.l10n.GlobalizationHelper;
@@ -10,7 +9,6 @@ import org.libreccm.l10n.LocalizedString;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
-import java.util.Map;
 import java.util.Objects;
 import java.util.stream.Stream;
 
@@ -178,9 +176,8 @@ public class LocalizedStringEditor extends CustomComponent {
                 .compareTo(Objects.toString(locale2));
         });
 
-        locales.subList(offset, limit);
-
         return locales
+            .subList(offset, limit)
             .stream()
             .map(locale -> new LocalizedStringValue(
             locale, localizedString.getValue(locale)));

ccm-core/src/main/java/org/libreccm/pagemodel/ComponentRendererManager.java

@@ -94,7 +94,7 @@ public class ComponentRendererManager {
     /**
      * Annotation literal for the {@link ComponentModelType} annotation.
      */
-    private class ComponentModelTypeLiteral
+    private static class ComponentModelTypeLiteral
         extends AnnotationLiteral<ComponentModelType>
         implements ComponentModelType {
 

ccm-core/src/main/java/org/libreccm/pagemodel/ui/PageTreeModel.java

@@ -42,7 +42,7 @@ class PageTreeModel implements TreeModel {
     public boolean hasChildren(final TreeNode node, final PageState state) {
         if (node instanceof RootNode) {
             return true;
-        } else if (node instanceof ApplicationTypeTreeNode) {
+        } else if (node instanceof ApplicationTreeNode) {
             final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
             final PageModelRepository pageModelRepo = cdiUtil.findBean(
                 PageModelRepository.class);

ccm-core/src/main/java/org/libreccm/security/PartyRepository.java

@@ -35,6 +35,8 @@ import java.util.Optional;
 @RequestScoped
 public class PartyRepository extends AbstractEntityRepository<Long, Party> {
 
+    private static final long serialVersionUID = -8056652791690243141L;
+
     @Override
     public Class<Party> getEntityClass() {
         return Party.class;

ccm-core/src/main/java/org/libreccm/security/PermissionManager.java

@@ -416,12 +416,6 @@ public class PermissionManager {
                                 final Role grantee,
                                 final CcmObject object) {
 
-        LOGGER.debug("Revoking permission granting privilege \"{}\" "
-                         + "on object \"{}\" to role \"{}\"...",
-                     privilege,
-                     grantee.getName(),
-                     object.getUuid());
-
         if (privilege == null || privilege.isEmpty()) {
             throw new IllegalArgumentException(
                 "Can't revoke a permission without a privilege.");
@@ -437,6 +431,12 @@ public class PermissionManager {
                 "Can't revoke a permission from object NULL.");
         }
         
+        LOGGER.debug("Revoking permission granting privilege \"{}\" "
+                         + "on object \"{}\" to role \"{}\"...",
+                     privilege,
+                     grantee.getName(),
+                     object.getUuid());
+
         if (existsPermission(privilege, grantee, object)
             || existsInheritedPermission(privilege, grantee, object)) {
 

ccm-core/src/main/java/org/libreccm/security/RoleManager.java

@@ -20,12 +20,15 @@ package org.libreccm.security;
 
 import org.libreccm.core.CoreConstants;
 
+import java.io.Serializable;
+
 import javax.enterprise.context.RequestScoped;
 import javax.inject.Inject;
 import javax.persistence.EntityManager;
 import javax.persistence.NoResultException;
 import javax.persistence.TypedQuery;
 import javax.transaction.Transactional;
+
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
@@ -39,7 +42,9 @@ import java.util.stream.Collectors;
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @RequestScoped
-public class RoleManager {
+public class RoleManager implements Serializable {
+
+    private static final long serialVersionUID = -3012991584385998270L;
 
     @Inject
     private RoleRepository roleRepository;
@@ -166,7 +171,7 @@ public class RoleManager {
             .map(membership -> membership.getRole())
             .collect(Collectors.toList());
 
-        final Set<Role> roles = new HashSet<>();
+        final Set<Role> roles = new HashSet<>(directlyAssigned);
 
         final List<Group> groups = user
             .getGroupMemberships()

ccm-core/src/main/java/org/libreccm/security/RoleRepository.java

@@ -37,6 +37,8 @@ import java.util.Optional;
 @RequestScoped
 public class RoleRepository extends AbstractEntityRepository<Long, Role> {
 
+    private static final long serialVersionUID = 2285369521940062504L;
+
     @Override
     public Class<Role> getEntityClass() {
         return Role.class;

ccm-core/src/main/java/org/libreccm/security/Shiro.java

@@ -19,6 +19,7 @@
 package org.libreccm.security;
 
 import com.arsdigita.kernel.KernelConfig;
+
 import org.apache.shiro.SecurityUtils;
 import org.apache.shiro.mgt.SecurityManager;
 import org.apache.shiro.session.Session;
@@ -26,10 +27,13 @@ import org.apache.shiro.subject.PrincipalCollection;
 import org.apache.shiro.subject.SimplePrincipalCollection;
 import org.apache.shiro.subject.Subject;
 
+import java.io.Serializable;
+
 import javax.enterprise.context.ApplicationScoped;
 import javax.enterprise.inject.Produces;
 import javax.inject.Inject;
 import javax.inject.Named;
+
 import java.lang.reflect.InvocationHandler;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -50,7 +54,9 @@ import java.util.Optional;
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @ApplicationScoped
-public class Shiro {
+public class Shiro implements Serializable {
+
+    private static final long serialVersionUID = -3270585472267405099L;
 
     /**
      * Principal used for the public user if
@@ -67,7 +73,8 @@ public class Shiro {
      *
      * @see #getPublicUser()
      */
-    public static final String PUBLIC_USER_PRINCIPAL_EMAIL = "public-user@localhost";
+    public static final String PUBLIC_USER_PRINCIPAL_EMAIL
+                               = "public-user@localhost";
 
     /**
      * Principal used for the system user if
@@ -84,7 +91,8 @@ public class Shiro {
      *
      * @see #getSystemUser()
      */
-    public static final String SYSTEM_USER_PRINCIPAL_EMAIL = "system-user@localhost";
+    public static final String SYSTEM_USER_PRINCIPAL_EMAIL
+                               = "system-user@localhost";
 
     @Inject
     private UserRepository userRepository;
@@ -171,8 +179,9 @@ public class Shiro {
      * subject.
      *
      * @return An {@link Optional} containing the {@link User} entity for the
-     * current subject. If the current subject is a virtual user which has no
+     *         current subject. If the current subject is a virtual user which
-     * representation in the database the returned {@link Optional} is empty.
+     *         has no representation in the database the returned
+     *         {@link Optional} is empty.
      *
      * @see #getSubject()
      * @see #getSystemUser()
@@ -223,6 +232,7 @@ public class Shiro {
                 throw ex.getTargetException();
             }
         }
+
     }
 
     private static class SubjectInvocationHandler extends Handler {
@@ -233,6 +243,7 @@ public class Shiro {
                                     final Object[] args) throws Throwable {
             return method.invoke(SecurityUtils.getSubject(), args);
         }
+
     }
 
     private static class SecurityManagerInvocationHandler extends Handler {
@@ -254,6 +265,7 @@ public class Shiro {
                                     final Object[] args) throws Throwable {
             return method.invoke(SecurityUtils.getSubject().getSession(), args);
         }
+
     }
 
 }

ccm-core/src/main/java/org/libreccm/sites/Site.java

@@ -116,6 +116,10 @@ public class Site extends CcmObject {
             return false;
         }
         final Site other = (Site) obj;
+        if (!other.canEqual(this)) {
+            return false;
+        }
+        
         if (defaultSite != other.isDefaultSite()) {
             return false;
         }

ccm-core/src/main/java/org/libreccm/theming/StaticThemeProvider.java

@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2017 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.theming;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.libreccm.core.UnexpectedErrorException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URI;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+/**
+ * A theme provider implementation which serves themes from the class path
+ * ({@code /themes)}.
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+public class StaticThemeProvider implements ThemeProvider {
+
+    private static final Logger LOGGER = LogManager
+        .getLogger(StaticThemeProvider.class);
+
+    private static final String THEMES_DIR = "/themes";
+    private static final String THEME_XML = "theme.xml";
+    private static final String THEME_JSON = "theme.json";
+
+    @Override
+    public List<ThemeInfo> getThemes() {
+
+        LOGGER.debug("Retrieving info about all static themes...");
+
+        final List<ThemeInfo> themeInfos = new ArrayList<>();
+        try (final FileSystem jarFileSystem = FileSystems.newFileSystem(
+            getJarUri(), Collections.emptyMap())) {
+
+            final Path themesPath = jarFileSystem.getPath(THEMES_DIR);
+            if (!Files.isDirectory(themesPath)) {
+                LOGGER.warn(THEMES_DIR + " is not a directory. Returning "
+                                + "empty list.");
+                return Collections.emptyList();
+            }
+
+            return Files
+                .list(themesPath)
+                .filter(this::isTheme)
+                .map(this::generateThemeInfo)
+                .collect(Collectors.toList());
+
+        } catch (IOException ex) {
+            throw new UnexpectedErrorException(ex);
+        }
+    }
+
+    @Override
+    public List<ThemeInfo> getLiveThemes() {
+        return getThemes();
+    }
+
+    @Override
+    public Optional<ThemeInfo> getThemeInfo(String theme, ThemeVersion version) {
+        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+
+    @Override
+    public boolean providesTheme(String theme, ThemeVersion version) {
+        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+
+    @Override
+    public List<ThemeFileInfo> listThemeFiles(String theme, ThemeVersion version,
+                                              String path) {
+        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+
+    @Override
+    public Optional<InputStream> getThemeFileAsStream(String theme,
+                                                      ThemeVersion version,
+                                                      String path) {
+        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+
+    @Override
+    public OutputStream getOutputStreamForThemeFile(String theme, String path) {
+        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+
+    @Override
+    public boolean supportsChanges() {
+        return false;
+    }
+
+    @Override
+    public boolean supportsDraftThemes() {
+        return false;
+    }
+
+    @Override
+    public void publishTheme(final String theme) {
+        LOGGER.info("StaticThemeProvider#publishTheme(String) called, but "
+                        + "StaticThemeProvider does not support draft/live "
+                        + "themes.");
+    }
+
+    private URI getJarUri() {
+
+        LOGGER.debug("Getting URI of JAR...");
+
+        final String themesUrl = getClass().getResource(THEMES_DIR).toString();
+        LOGGER.debug("Full URL of " + THEMES_DIR + " directory: {}", themesUrl);
+
+        final int index = themesUrl.indexOf('!');
+        final String pathToJar = themesUrl.substring(0, index);
+
+        final URI uri = URI.create(pathToJar);
+        LOGGER.debug("URI to JAR is \"%s\".", uri.toString());
+        return uri;
+    }
+
+    private boolean isTheme(final Path path) {
+
+        Objects.requireNonNull(path);
+
+        if (!Files.isDirectory(path)) {
+            return false;
+        }
+
+        final Path manifestPathJson = path.resolve(THEME_JSON);
+        final Path manifestPathXml = path.resolve(THEME_XML);
+
+        return Files.exists(manifestPathJson) || Files.exists(manifestPathXml);
+    }
+
+    private ThemeInfo generateThemeInfo(final Path path) {
+
+        Objects.requireNonNull(path);
+
+        if (!Files.exists(path)) {
+            throw new IllegalArgumentException(String
+                .format("The provided path \"%s\" does "
+                            + "not exist.",
+                        path.toString()));
+        }
+
+        final Path manifestPathJson = path.resolve(THEME_JSON);
+        final Path manifestPathXml = path.resolve(THEME_XML);
+
+        if (Files.exists(manifestPathJson)) {
+            return generateThemeInfoFromJson(manifestPathJson);
+        } else if (Files.exists(manifestPathXml)) {
+            return generateThemeInfoFromXml(manifestPathXml);
+        } else {
+            throw new IllegalArgumentException(String
+                .format("The provided path \"%s\" does "
+                            + "contain a theme manifest file.",
+                        path.toString()));
+        }
+    }
+
+    private ThemeInfo generateThemeInfoFromJson(final Path path) {
+        throw new UnsupportedOperationException();
+    }
+
+    private ThemeInfo generateThemeInfoFromXml(final Path path) {
+        throw new UnsupportedOperationException();
+    }
+
+}

ccm-core/src/main/java/org/libreccm/theming/Themes.java

@@ -126,7 +126,7 @@ public class Themes {
         return processor.process(page, theme, provider);
     }
 
-    private class ThemeTypeLiteral extends AnnotationLiteral<ThemeType>
+    private static class ThemeTypeLiteral extends AnnotationLiteral<ThemeType>
         implements ThemeType {
 
         private static final long serialVersionUID = 3377237291286175824L;

ccm-core/src/main/java/org/libreccm/ui/LocalizedStringWidget.java

@@ -336,7 +336,9 @@ public class LocalizedStringWidget extends CustomComponent {
         UI.getCurrent().addWindow(window);
     }
 
-    private class SimpleTextEditor extends TextArea implements TextEditor {
+    private static class SimpleTextEditor 
+        extends TextArea 
+        implements TextEditor {
 
         private static final long serialVersionUID = -1189747199799719077L;
 

ccm-core/src/main/java/org/libreccm/ui/LocalizedStringWidgetController.java

@@ -22,6 +22,7 @@ import com.arsdigita.kernel.KernelConfig;
 
 import org.libreccm.configuration.ConfigurationManager;
 
+import java.io.Serializable;
 import java.util.List;
 import java.util.Locale;
 import java.util.stream.Collectors;
@@ -38,7 +39,9 @@ import javax.inject.Inject;
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @RequestScoped
-public class LocalizedStringWidgetController {
+public class LocalizedStringWidgetController implements Serializable {
+
+    private static final long serialVersionUID = -8390792440087872905L;
 
     @Inject
     private ConfigurationManager confManager;
@@ -53,17 +56,16 @@ public class LocalizedStringWidgetController {
 
     public List<Locale> getSupportedLocales() {
 
-         final KernelConfig kernelConfig = confManager
+        final KernelConfig kernelConfig = confManager
             .findConfiguration(KernelConfig.class);
 
-         return kernelConfig
+        return kernelConfig
-             .getSupportedLanguages()
+            .getSupportedLanguages()
-             .stream()
+            .stream()
-             .sorted((lang1, lang2) -> lang1.compareTo(lang2))
+            .sorted((lang1, lang2) -> lang1.compareTo(lang2))
-             .map(Locale::new)
+            .map(Locale::new)
-             .collect(Collectors.toList());
+            .collect(Collectors.toList());
 
     }
 
-
 }

ccm-core/src/main/java/org/libreccm/ui/TextEditorBuilder.java

@@ -18,6 +18,8 @@
  */
 package org.libreccm.ui;
 
+import java.io.Serializable;
+
 /**
  * A functional interface which can be used by other components which embed 
  * a text editor.
@@ -25,7 +27,7 @@ package org.libreccm.ui;
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @FunctionalInterface
-public interface TextEditorBuilder {
+public interface TextEditorBuilder extends Serializable {
     
     /**
      * Create the text editor component.

ccm-core/src/main/java/org/libreccm/ui/admin/UserContextController.java

@@ -43,7 +43,7 @@ public class UserContextController implements Serializable {
     private Shiro shiro;
 
     @Inject
-    private Subject subject;
+    private transient Subject subject;
 
     public boolean isLoggedIn() {
         return subject.isAuthenticated();

ccm-core/src/main/java/org/libreccm/workflow/Task.java

@@ -376,10 +376,7 @@ public class Task implements Identifiable, Serializable {
                                  + "uuid = \"%s\", "
                                  + "label = %s, "
                                  + "active = %b, "
-                                 + "taskState = \"%s\", "
+                                 + "taskState = \"%s\"%s"
-//                                 + "workflow = %s, "
-//                                 + "dependentTasks = %s, "
-//                                 + "dependsOn = %s%s"
                                  + " }",
                              super.toString(),
                              taskId,
@@ -387,9 +384,6 @@ public class Task implements Identifiable, Serializable {
                              Objects.toString(label),
                              active,
                              taskState,
-//                             Objects.toString(workflow),
-//                             Objects.toString(dependentTasks),
-//                             Objects.toString(dependsOn),
                              data);
     }