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The following commit(s) were added to refs/heads/master by this push:
     new fad82268c [OPENMEETINGS-2733] Sonar should be more happy
fad82268c is described below

commit fad82268c5aaedfec37fdb3b9e23158f87271c1b
Author: Maxim Solodovnik <[email protected]>
AuthorDate: Mon Dec 19 16:47:51 2022 +0700

    [OPENMEETINGS-2733] Sonar should be more happy
---
 .../openmeetings/core/ldap/LdapLoginManager.java   |  2 +-
 .../apache/openmeetings/core/mail/MailHandler.java |  5 +-
 .../openmeetings/core/util/WebSocketHelper.java    |  6 +--
 .../openmeetings/db/dto/room/Whiteboard.java       |  8 +--
 .../openmeetings/db/entity/basic/Client.java       |  4 +-
 .../openmeetings/db/entity/basic/StreamDesc.java   |  4 +-
 .../apache/openmeetings/backup/BackupImport.java   |  6 +--
 .../openmeetings/backup/converter/WbConverter.java |  4 +-
 .../service/scheduler/AbstractJob.java             |  4 +-
 .../openmeetings/util/OpenmeetingsVariables.java   |  2 +-
 .../openmeetings/util/process/ProcessHelper.java   |  2 +-
 .../apache/openmeetings/web/app/ClientManager.java |  8 +--
 .../openmeetings/web/app/WhiteboardManager.java    |  2 +-
 .../common/datetime/AbstractOmDateTimePicker.java  |  2 +-
 .../web/common/tree/FileTreePanel.java             |  4 +-
 .../apache/openmeetings/web/room/wb/WbPanel.java   | 63 +++++++++++-----------
 .../web/room/wb/WbWebSocketHelper.java             | 20 +++----
 .../web/user/calendar/CalendarDialog.java          |  6 +--
 .../web/util/logging/TomcatGenericExports.java     |  2 +-
 19 files changed, 78 insertions(+), 76 deletions(-)

diff --git 
a/openmeetings-core/src/main/java/org/apache/openmeetings/core/ldap/LdapLoginManager.java
 
b/openmeetings-core/src/main/java/org/apache/openmeetings/core/ldap/LdapLoginManager.java
index e0e7804b9..33139d299 100644
--- 
a/openmeetings-core/src/main/java/org/apache/openmeetings/core/ldap/LdapLoginManager.java
+++ 
b/openmeetings-core/src/main/java/org/apache/openmeetings/core/ldap/LdapLoginManager.java
@@ -371,7 +371,7 @@ public class LdapLoginManager {
                        return u;
                }
 
-               public User setUserPicture(Entry entry, User inUser) throws 
LdapInvalidAttributeValueException {
+               public User setUserPicture(Entry entry, User inUser) {
                        User user = Optional.ofNullable(getAttr(config, entry, 
CONFIGKEY_LDAP_KEY_PICTURE, ""))
                                        .map(Attribute::get)
                                        .filter(val -> val != null && 
val.getBytes() != null)
diff --git 
a/openmeetings-core/src/main/java/org/apache/openmeetings/core/mail/MailHandler.java
 
b/openmeetings-core/src/main/java/org/apache/openmeetings/core/mail/MailHandler.java
index 445d1a67f..d673220d2 100644
--- 
a/openmeetings-core/src/main/java/org/apache/openmeetings/core/mail/MailHandler.java
+++ 
b/openmeetings-core/src/main/java/org/apache/openmeetings/core/mail/MailHandler.java
@@ -32,7 +32,6 @@ import static 
org.apache.openmeetings.util.OpenmeetingsVariables.isSmtpUseSsl;
 import static org.apache.openmeetings.util.OpenmeetingsVariables.isSmtpUseTls;
 
 import java.io.ByteArrayInputStream;
-import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.util.Calendar;
@@ -118,11 +117,11 @@ public class MailHandler {
                return msg;
        }
 
-       private MimeMessage appendBody(MimeMessage msg, MailMessage m) throws 
MessagingException, IOException {
+       private MimeMessage appendBody(MimeMessage msg, MailMessage m) throws 
MessagingException {
                return appendBody(msg, m.getBody());
        }
 
-       public MimeMessage appendBody(MimeMessage msg, String body) throws 
MessagingException, IOException {
+       public MimeMessage appendBody(MimeMessage msg, String body) throws 
MessagingException {
                // -- Set the subject and body text --
                msg.setDataHandler(new DataHandler(new 
ByteArrayDataSource(body, "text/html; charset=\"utf-8\"")));
 
diff --git 
a/openmeetings-core/src/main/java/org/apache/openmeetings/core/util/WebSocketHelper.java
 
b/openmeetings-core/src/main/java/org/apache/openmeetings/core/util/WebSocketHelper.java
index a8f3d9563..896856bd1 100644
--- 
a/openmeetings-core/src/main/java/org/apache/openmeetings/core/util/WebSocketHelper.java
+++ 
b/openmeetings-core/src/main/java/org/apache/openmeetings/core/util/WebSocketHelper.java
@@ -69,7 +69,7 @@ public class WebSocketHelper {
                        sendClient(omClient, c -> {
                                try {
                                        c.sendMessage(b, 0, b.length);
-                               } catch (Throwable e) {
+                               } catch (Exception e) {
                                        log.error("Error while sending binary 
message to client", e);
                                }
                        });
@@ -82,7 +82,7 @@ public class WebSocketHelper {
                        sendClient(omClient, c -> {
                                try {
                                        c.sendMessage(msg.toString());
-                               } catch (Throwable e) {
+                               } catch (Exception e) {
                                        log.error("Error while sending message 
to client", e);
                                }
                        });
@@ -94,7 +94,7 @@ public class WebSocketHelper {
                sendClient(omClient, c -> {
                        try {
                                c.sendMessage(m);
-                       } catch (Throwable e) {
+                       } catch (Exception e) {
                                log.error("Error while sending message to 
client", e);
                        }
                });
diff --git 
a/openmeetings-db/src/main/java/org/apache/openmeetings/db/dto/room/Whiteboard.java
 
b/openmeetings-db/src/main/java/org/apache/openmeetings/db/dto/room/Whiteboard.java
index 25e6b5018..769a237bf 100644
--- 
a/openmeetings-db/src/main/java/org/apache/openmeetings/db/dto/room/Whiteboard.java
+++ 
b/openmeetings-db/src/main/java/org/apache/openmeetings/db/dto/room/Whiteboard.java
@@ -19,7 +19,7 @@
 package org.apache.openmeetings.db.dto.room;
 
 import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM_SRC;
-import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM__SRC;
+import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM_SRC_UND;
 
 import java.io.BufferedWriter;
 import java.io.IOException;
@@ -215,13 +215,13 @@ public class Whiteboard implements Serializable {
                        JSONObject o = new JSONObject(e.getValue());
                        //filtering
                        if ("Clipart".equals(o.opt(ATTR_OMTYPE))) {
-                               if (o.has(PARAM__SRC)) {
-                                       o.put(PARAM_SRC, o.get(PARAM__SRC));
+                               if (o.has(PARAM_SRC_UND)) {
+                                       o.put(PARAM_SRC, o.get(PARAM_SRC_UND));
                                }
                        } else {
                                o.remove(PARAM_SRC);
                        }
-                       o.remove(PARAM__SRC);
+                       o.remove(PARAM_SRC_UND);
                        items.put(e.getKey(), o);
                }
                json.put(ITEMS_KEY, items);
diff --git 
a/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/Client.java
 
b/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/Client.java
index ec182e493..742e246c0 100644
--- 
a/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/Client.java
+++ 
b/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/Client.java
@@ -223,14 +223,14 @@ public class Client implements IDataProviderEntity, 
IWsClient {
        public Optional<ScreenStreamDesc> getScreenStream() {
                return streams.values().stream()
                                .filter(sd -> StreamType.SCREEN == sd.getType())
-                               .map(sd -> (ScreenStreamDesc)sd)
+                               .map(ScreenStreamDesc.class::cast)
                                .findFirst();
        }
 
        public Stream<WebcamStreamDesc> getCamStreams() {
                return streams.values().stream()
                                .filter(sd -> StreamType.WEBCAM == sd.getType())
-                               .map(sd -> (WebcamStreamDesc)sd);
+                               .map(WebcamStreamDesc.class::cast);
        }
 
        public Date getConnectedSince() {
diff --git 
a/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/StreamDesc.java
 
b/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/StreamDesc.java
index 9508bb208..eebc62058 100644
--- 
a/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/StreamDesc.java
+++ 
b/openmeetings-db/src/main/java/org/apache/openmeetings/db/entity/basic/StreamDesc.java
@@ -40,7 +40,7 @@ public abstract class StreamDesc implements Serializable, 
Cloneable {
        private int width;
        private int height;
 
-       public StreamDesc(StreamDesc sd) {
+       protected StreamDesc(StreamDesc sd) {
                this.client = sd.client;
                this.uid = sd.uid;
                this.type = sd.type;
@@ -49,7 +49,7 @@ public abstract class StreamDesc implements Serializable, 
Cloneable {
                this.activities.addAll(sd.activities);
        }
 
-       public StreamDesc(final Client client, StreamType type) {
+       protected StreamDesc(final Client client, StreamType type) {
                this.client = client;
                this.uid = randomUUID().toString();
                this.type = type;
diff --git 
a/openmeetings-install/src/main/java/org/apache/openmeetings/backup/BackupImport.java
 
b/openmeetings-install/src/main/java/org/apache/openmeetings/backup/BackupImport.java
index 7e9af5d50..ec9e84dbf 100644
--- 
a/openmeetings-install/src/main/java/org/apache/openmeetings/backup/BackupImport.java
+++ 
b/openmeetings-install/src/main/java/org/apache/openmeetings/backup/BackupImport.java
@@ -590,7 +590,7 @@ public class BackupImport {
        /*
         * ##################### Import Groups
         */
-       void importGroups(File base) throws Exception {
+       void importGroups(File base) {
                log.info("Configs import complete, starting group import");
                readList(base, "organizations.xml", GROUP_LIST_NODE, 
GROUP_NODE, Group.class, g -> {
                        Long oldId = g.getId();
@@ -968,7 +968,7 @@ public class BackupImport {
        /*
         * ##################### Import Recordings
         */
-       void importRecordings(File base) throws Exception {
+       void importRecordings(File base) {
                log.info("Meeting members import complete, starting recordings 
server import");
                final Map<Long, Long> folders = new HashMap<>();
                saveTree(base, "flvRecordings.xml", RECORDING_LIST_NODE, 
RECORDING_NODE, Recording.class, folders, r -> {
@@ -1083,7 +1083,7 @@ public class BackupImport {
        /*
         * ##################### Import File-Explorer Items
         */
-       private List<FileItem> importFiles(File base) throws Exception {
+       private List<FileItem> importFiles(File base) {
                log.info("Private message import complete, starting file 
explorer item import");
                List<FileItem> result = new ArrayList<>();
                final Map<Long, Long> folders = new HashMap<>();
diff --git 
a/openmeetings-install/src/main/java/org/apache/openmeetings/backup/converter/WbConverter.java
 
b/openmeetings-install/src/main/java/org/apache/openmeetings/backup/converter/WbConverter.java
index 57bcaea09..e5decb667 100644
--- 
a/openmeetings-install/src/main/java/org/apache/openmeetings/backup/converter/WbConverter.java
+++ 
b/openmeetings-install/src/main/java/org/apache/openmeetings/backup/converter/WbConverter.java
@@ -26,7 +26,7 @@ import static 
org.apache.openmeetings.db.dto.room.Whiteboard.ATTR_FILE_TYPE;
 import static org.apache.openmeetings.db.dto.room.Whiteboard.ATTR_SLIDE;
 import static org.apache.openmeetings.db.dto.room.Whiteboard.ATTR_TYPE;
 import static org.apache.openmeetings.util.OmFileHelper.EXTENSION_WML;
-import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM__SRC;
+import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM_SRC_UND;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -202,7 +202,7 @@ public class WbConverter {
                add(wb, init(wb, props)
                                .put(ATTR_TYPE, TYPE_IMAGE)
                                .put("omType", "Clipart")
-                               .put(PARAM__SRC, src)
+                               .put(PARAM_SRC_UND, src)
                                .put("angle", props.get(3)));
        }
 
diff --git 
a/openmeetings-service/src/main/java/org/apache/openmeetings/service/scheduler/AbstractJob.java
 
b/openmeetings-service/src/main/java/org/apache/openmeetings/service/scheduler/AbstractJob.java
index 513c4d5f5..ae53f5323 100644
--- 
a/openmeetings-service/src/main/java/org/apache/openmeetings/service/scheduler/AbstractJob.java
+++ 
b/openmeetings-service/src/main/java/org/apache/openmeetings/service/scheduler/AbstractJob.java
@@ -22,7 +22,7 @@ import static 
org.apache.openmeetings.util.OpenmeetingsVariables.isInitComplete;
 
 import java.time.Instant;
 import java.time.temporal.ChronoUnit;
-import java.util.function.BiConsumer;
+import java.util.function.ObjLongConsumer;
 
 import org.apache.openmeetings.db.dao.record.RecordingDao;
 import org.apache.openmeetings.db.dao.user.GroupDao;
@@ -39,7 +39,7 @@ public abstract class AbstractJob {
        @Autowired
        RecordingDao recordingDao;
 
-       void processExpiringRecordings(boolean notified, BiConsumer<Recording, 
Long> consumer) {
+       void processExpiringRecordings(boolean notified, 
ObjLongConsumer<Recording> consumer) {
                if (!isInitComplete()) {
                        return;
                }
diff --git 
a/openmeetings-util/src/main/java/org/apache/openmeetings/util/OpenmeetingsVariables.java
 
b/openmeetings-util/src/main/java/org/apache/openmeetings/util/OpenmeetingsVariables.java
index 715fe626b..e28c3b3dd 100644
--- 
a/openmeetings-util/src/main/java/org/apache/openmeetings/util/OpenmeetingsVariables.java
+++ 
b/openmeetings-util/src/main/java/org/apache/openmeetings/util/OpenmeetingsVariables.java
@@ -37,7 +37,7 @@ public class OpenmeetingsVariables {
        public static final String PARAM_USER_ID = "userId";
        public static final String PARAM_STATUS = "status";
        public static final String PARAM_SRC = "src";
-       public static final String PARAM__SRC = "_src";
+       public static final String PARAM_SRC_UND = "_src";
        public static final String CONFIG_CRYPT = "crypt.class.name";
        public static final String CONFIG_DASHBOARD_SHOW_CHAT = 
"dashboard.show.chat";
        public static final String CONFIG_DASHBOARD_SHOW_MYROOMS = 
"dashboard.show.myrooms";
diff --git 
a/openmeetings-util/src/main/java/org/apache/openmeetings/util/process/ProcessHelper.java
 
b/openmeetings-util/src/main/java/org/apache/openmeetings/util/process/ProcessHelper.java
index a82acc997..1eeb86b2a 100644
--- 
a/openmeetings-util/src/main/java/org/apache/openmeetings/util/process/ProcessHelper.java
+++ 
b/openmeetings-util/src/main/java/org/apache/openmeetings/util/process/ProcessHelper.java
@@ -97,7 +97,7 @@ public class ProcessHelper {
                return exec(process, argv, Map.of(), optional);
        }
 
-       private static ProcessResult exec(String process, List<String> argv, 
Map<? extends String, ? extends String> env, boolean optional) {
+       private static ProcessResult exec(String process, List<String> argv, 
Map<String, String> env, boolean optional) {
                ProcessResult res = new ProcessResult()
                                .setProcess(process)
                                .setOptional(optional);
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/ClientManager.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/ClientManager.java
index eff15eaef..11c2c47dd 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/ClientManager.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/ClientManager.java
@@ -32,7 +32,7 @@ import java.util.Optional;
 import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
-import java.util.function.Function;
+import java.util.function.UnaryOperator;
 import java.util.stream.Stream;
 
 import org.apache.openmeetings.db.dao.log.ConferenceLogDao;
@@ -332,7 +332,7 @@ public class ClientManager implements IClientManager {
                }
        }
 
-       private String getServerUrl(Map.Entry<String, ServerInfo> e, Room r, 
Function<String, String> generator) {
+       private String getServerUrl(Map.Entry<String, ServerInfo> e, Room r, 
UnaryOperator<String> generator) {
                final String curServerId = app.getServerId();
                String serverId = e.getKey();
                if (!curServerId.equals(serverId)) {
@@ -342,12 +342,12 @@ public class ClientManager implements IClientManager {
                return null;
        }
 
-       public String getServerUrl(Room r, Function<String, String> 
inGenerator) {
+       public String getServerUrl(Room r, UnaryOperator<String> inGenerator) {
                if (onlineServers.size() == 1) {
                        log.debug("Cluster:: The only server found");
                        return null;
                }
-               Function<String, String> generator = inGenerator == null ? 
baseUrl -> {
+               UnaryOperator<String> generator = inGenerator == null ? baseUrl 
-> {
                        String uuid = UUID.randomUUID().toString();
                        tokens().put(uuid, new InstantToken(getUserId(), 
r.getId()));
                        return Application.urlForPage(SignInPage.class, new 
PageParameters().add(TOKEN_PARAM, uuid), baseUrl);
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/WhiteboardManager.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/WhiteboardManager.java
index cda6b6e36..49801d1a9 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/WhiteboardManager.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/WhiteboardManager.java
@@ -147,7 +147,7 @@ public class WhiteboardManager implements 
IWhiteboardManager {
                                getOrCreate(r.getId(), wbs -> {
                                        r.getFiles().stream()
                                                .sorted((rf1, rf2) -> 
(int)(rf1.getWbIdx() - rf2.getWbIdx()))
-                                               
.collect(Collectors.groupingBy(f -> f.getWbIdx()))
+                                               
.collect(Collectors.groupingBy(RoomFile::getWbIdx))
                                                .forEach((wbIdx, fileList) -> {
                                                        log.trace("WBS init, 
processing idx {}", wbIdx);
                                                        Whiteboard wb = 
add(wbs, langId);
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/datetime/AbstractOmDateTimePicker.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/datetime/AbstractOmDateTimePicker.java
index de23bd14b..dc521e527 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/datetime/AbstractOmDateTimePicker.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/datetime/AbstractOmDateTimePicker.java
@@ -117,7 +117,7 @@ public abstract class AbstractOmDateTimePicker<T extends 
Serializable> extends F
        public static String patch(String format) {
                // in Java free text is escaped with single-quotes
                // moment.js uses []
-               return format.replaceAll("[']{1}([^']*)[']{1}", "\\[$1\\]");
+               return format.replaceAll("[']([^']*)[']", "\\[$1\\]");
        }
 
        public static String getDateTimeFormat() {
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/tree/FileTreePanel.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/tree/FileTreePanel.java
index 54806e18e..9c4afcde8 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/tree/FileTreePanel.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/common/tree/FileTreePanel.java
@@ -438,7 +438,9 @@ public abstract class FileTreePanel extends Panel {
        }
 
        private void updateTrash(IPartialPageRequestHandler handler) {
-               final boolean hasDeletable = selected.values().stream().map(f 
-> f.getId()).anyMatch(Objects::nonNull);
+               final boolean hasDeletable = selected.values().stream()
+                               .map(BaseFileItem::getId)
+                               .anyMatch(Objects::nonNull);
                trash.add(AttributeModifier.replace(ATTR_CLASS, TRASH_CLASS + 
(hasDeletable && !readOnly ? "" : DISABLED_CLASS)));
                if (handler != null) {
                        handler.add(trash);
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbPanel.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbPanel.java
index b21a2a723..de937790e 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbPanel.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbPanel.java
@@ -127,7 +127,7 @@ public class WbPanel extends AbstractWbPanel {
        private final SerializableBiConsumer<Whiteboard, Boolean> addUndo = 
(wb, redo) -> {
                JSONArray arr = getArray(wb.toJson(), null);
                if (arr.length() != 0) {
-                       if (!redo) {
+                       if (Boolean.FALSE.equals(redo)) {
                                cleanRedo(wb.getId());
                        }
                        addUndo(wb.getId(), new UndoObject(WbAction.CLEAR_ALL
@@ -203,7 +203,7 @@ public class WbPanel extends AbstractWbPanel {
                }
                //presenter-right
                if (c.hasRight(Right.PRESENTER)) {
-                       processActionPresenter(c, a, obj, redo, handler);
+                       processActionPresenter(c, a, obj, redo);
                }
                //wb-right
                if (c.hasRight(Right.PRESENTER) || 
c.hasRight(Right.WHITEBOARD)) {
@@ -211,7 +211,7 @@ public class WbPanel extends AbstractWbPanel {
                }
        }
 
-       private boolean processActionGeneral(Client c, WbAction a, JSONObject 
obj, IPartialPageRequestHandler handler) throws IOException {
+       private boolean processActionGeneral(Client c, WbAction a, JSONObject 
obj, IPartialPageRequestHandler handler) {
                switch (a) {
                        case CREATE_OBJ, MODIFY_OBJ:
                        {
@@ -232,39 +232,15 @@ public class WbPanel extends AbstractWbPanel {
                                return true;
                        }
                        case LOAD_VIDEOS:
-                       {
-                               StringBuilder sb = new 
StringBuilder("WbArea.initVideos(");
-                               JSONArray arr = new JSONArray();
-                               for (Entry<Long, Whiteboard> entry : 
wbm.list(roomId)) {
-                                       Whiteboard wb = entry.getValue();
-                                       for (JSONObject o : wb.list()) {
-                                               String ft = 
o.optString(ATTR_FILE_TYPE);
-                                               if 
(BaseFileItem.Type.RECORDING.name().equals(ft) || 
BaseFileItem.Type.VIDEO.name().equals(ft)) {
-                                                       JSONObject status = 
o.optJSONObject(PARAM_STATUS);
-                                                       if (status == null) {
-                                                               continue;
-                                                       }
-                                                       JSONObject sts = new 
JSONObject(status.toString()); //copy
-                                                       sts.put("pos", 
sts.getDouble("pos") + (System.currentTimeMillis() - 
sts.getLong(PARAM_UPDATED)) * 1. / 1000);
-                                                       arr.put(new JSONObject()
-                                                                       
.put("wbId", wb.getId())
-                                                                       
.put("uid", o.getString("uid"))
-                                                                       
.put(ATTR_SLIDE, o.getString(ATTR_SLIDE))
-                                                                       
.put(PARAM_STATUS, sts));
-                                               }
-                                       }
-                               }
-                               sb.append(arr.toString()).append(");");
-                               handler.appendJavaScript(sb);
+                               loadVideos(handler);
                                return true;
-                       }
                        default:
                                break;
                }
                return false;
        }
 
-       private void processActionPresenter(Client c, WbAction a, JSONObject 
obj, boolean redo, IPartialPageRequestHandler handler) throws IOException {
+       private void processActionPresenter(Client c, WbAction a, JSONObject 
obj, boolean redo) {
                switch (a) {
                        case CREATE_WB:
                        {
@@ -480,6 +456,32 @@ public class WbPanel extends AbstractWbPanel {
                }
        }
 
+       private void loadVideos(IPartialPageRequestHandler handler) {
+               StringBuilder sb = new StringBuilder("WbArea.initVideos(");
+               JSONArray arr = new JSONArray();
+               for (Entry<Long, Whiteboard> entry : wbm.list(roomId)) {
+                       Whiteboard wb = entry.getValue();
+                       for (JSONObject o : wb.list()) {
+                               String ft = o.optString(ATTR_FILE_TYPE);
+                               if 
(BaseFileItem.Type.RECORDING.name().equals(ft) || 
BaseFileItem.Type.VIDEO.name().equals(ft)) {
+                                       JSONObject status = 
o.optJSONObject(PARAM_STATUS);
+                                       if (status == null) {
+                                               continue;
+                                       }
+                                       JSONObject sts = new 
JSONObject(status.toString()); //copy
+                                       sts.put("pos", sts.getDouble("pos") + 
(System.currentTimeMillis() - sts.getLong(PARAM_UPDATED)) * 1. / 1000);
+                                       arr.put(new JSONObject()
+                                                       .put("wbId", wb.getId())
+                                                       .put("uid", 
o.getString("uid"))
+                                                       .put(ATTR_SLIDE, 
o.getString(ATTR_SLIDE))
+                                                       .put(PARAM_STATUS, 
sts));
+                               }
+                       }
+               }
+               sb.append(arr.toString()).append(");");
+               handler.appendJavaScript(sb);
+       }
+
        @Override
        protected String getRole() {
                String role = ROLE_NONE;
@@ -672,8 +674,7 @@ public class WbPanel extends AbstractWbPanel {
                if (deq == null || deq.isEmpty()) {
                        return null;
                }
-               UndoObject redoObj = deq.pop();
-               return redoObj;
+               return deq.pop();
        }
 
        private static class LimitedLinkedList<T> extends LinkedList<T> {
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbWebSocketHelper.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbWebSocketHelper.java
index 9752ab22c..45a46696b 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbWebSocketHelper.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/WbWebSocketHelper.java
@@ -22,7 +22,7 @@ import static 
org.apache.openmeetings.core.util.WebSocketHelper.alwaysTrue;
 import static org.apache.openmeetings.core.util.WebSocketHelper.publish;
 import static org.apache.openmeetings.core.util.WebSocketHelper.sendRoom;
 import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM_SRC;
-import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM__SRC;
+import static org.apache.openmeetings.util.OpenmeetingsVariables.PARAM_SRC_UND;
 
 import java.util.function.Predicate;
 
@@ -44,7 +44,7 @@ import com.github.openjson.JSONObject;
 
 public class WbWebSocketHelper {
        public static final String PARAM_OBJ = "obj";
-       private static final String PARAM__POSTER = "_poster";
+       private static final String PARAM_POSTER_UND = "_poster";
 
        private WbWebSocketHelper() {
                // denied
@@ -116,17 +116,17 @@ public class WbWebSocketHelper {
                switch (fi.getType()) {
                        case VIDEO:
                                ref = new RoomResourceReference();
-                               file.put(PARAM__SRC, urlFor(ref, pp));
-                               file.put(PARAM__POSTER, urlFor(new 
RoomPreviewResourceReference(), pp));
+                               file.put(PARAM_SRC_UND, urlFor(ref, pp));
+                               file.put(PARAM_POSTER_UND, urlFor(new 
RoomPreviewResourceReference(), pp));
                                break;
                        case RECORDING:
                                ref = new Mp4RecordingResourceReference();
-                               file.put(PARAM__SRC, urlFor(ref, pp));
-                               file.put(PARAM__POSTER, urlFor(new 
PngRecordingResourceReference(), pp));
+                               file.put(PARAM_SRC_UND, urlFor(ref, pp));
+                               file.put(PARAM_POSTER_UND, urlFor(new 
PngRecordingResourceReference(), pp));
                                break;
                        case PRESENTATION:
                                ref = new RoomResourceReference();
-                               file.put(PARAM__SRC, urlFor(ref, pp));
+                               file.put(PARAM_SRC_UND, urlFor(ref, pp));
                                break;
                        default:
                                ref = new RoomResourceReference();
@@ -149,11 +149,11 @@ public class WbWebSocketHelper {
                JSONObject f = new JSONObject(inFile.toString()); // deep copy 
to ensure thread safety
                switch (fi.getType()) {
                        case VIDEO, RECORDING:
-                               f.put(PARAM__SRC, 
patchUrl(f.getString(PARAM__SRC), c));
-                               f.put(PARAM__POSTER, 
patchUrl(f.getString(PARAM__POSTER), c));
+                               f.put(PARAM_SRC_UND, 
patchUrl(f.getString(PARAM_SRC_UND), c));
+                               f.put(PARAM_POSTER_UND, 
patchUrl(f.getString(PARAM_POSTER_UND), c));
                                break;
                        case PRESENTATION:
-                               f.put(PARAM__SRC, 
patchUrl(f.getString(PARAM__SRC), c));
+                               f.put(PARAM_SRC_UND, 
patchUrl(f.getString(PARAM_SRC_UND), c));
                                break;
                        default:
                                f.put(PARAM_SRC, 
patchUrl(f.getString(PARAM_SRC), c));
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/user/calendar/CalendarDialog.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/user/calendar/CalendarDialog.java
index 01ac049d0..4f830b54a 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/user/calendar/CalendarDialog.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/user/calendar/CalendarDialog.java
@@ -117,7 +117,7 @@ public class CalendarDialog extends Modal<OmCalendar> {
                                                HttpClient client = 
calendarPanel.getHttpClient();
                                                HttpClientContext context = 
calendarPanel.getHttpClientContext();
 
-                                               if (form.gcal.getModelObject()) 
{
+                                               if 
(Boolean.TRUE.equals(form.gcal.getModelObject())) {
                                                        
c.setSyncType(OmCalendar.SyncType.GOOGLE_CALENDAR);
                                                        
c.setToken(form.username.getModelObject());
                                                        if (c.getId() == null) {
@@ -389,7 +389,7 @@ public class CalendarDialog extends Modal<OmCalendar> {
                        @Override
                        public void validate(IValidatable<String> validatable) {
                                //Only Validate when It's not a Google Calendar 
i.e a URL
-                               if (!gcal.getModelObject()) {
+                               if 
(Boolean.FALSE.equals(gcal.getModelObject())) {
                                        super.validate(validatable);
                                }
                        }
@@ -506,7 +506,7 @@ public class CalendarDialog extends Modal<OmCalendar> {
 
                        //Add new AttributeModifier to change the type of 
URLTextField, to text for
                        //Google Calendar and to URL for a normal CalDAV 
calendar
-                       url.add(AttributeModifier.replace("type", 
gcal.getModelObject() ? "text" : "url"));
+                       url.add(AttributeModifier.replace("type", 
Boolean.TRUE.equals(gcal.getModelObject()) ? "text" : "url"));
                }
 
 
diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/util/logging/TomcatGenericExports.java
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/util/logging/TomcatGenericExports.java
index 696fbf527..5403b53b2 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/util/logging/TomcatGenericExports.java
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/util/logging/TomcatGenericExports.java
@@ -299,7 +299,7 @@ public class TomcatGenericExports extends Collector {
                        props.load(is);
                        //server info can be get as 
props.getProperty("server.info");
                        
tomcatInfo.addMetric(List.of(props.getProperty("server.number"), 
props.getProperty("server.built")), 1);
-               } catch (Throwable t) {
+               } catch (Exception t) {
                        log.warn("Unable to read Tomcat version: ", t);
                }
                mfs.add(tomcatInfo);

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