Fix additional links

Author: ppkarwasz

log4j-core/src/main/java/org/apache/logging/log4j/core/appender/MemoryMappedFileManager.java

@@ -47,9 +47,7 @@
  *      http://www.codeproject.com/Tips/683614/Things-to-Know-about-Memory-Mapped-File-in-Java</a>
  * @see <a href="https://bugs.openjdk.org/browse/JDK-6893654">JDK-6893654</a>
  * @see <a href="https://bugs.openjdk.org/browse/JDK-4724038">JDK-4724038</a>
- * @see <a
- *      href="http://stackoverflow.com/questions/9261316/memory-mapped-mappedbytebuffer-or-direct-bytebuffer-for-db-implementation">
- *      http://stackoverflow.com/questions/9261316/memory-mapped-mappedbytebuffer-or-direct-bytebuffer-for-db-implementation</a>
+ * @see <a href="https://stackoverflow.com/q/9261316/11748454">Memory-Mapped MappedByteBuffer or Direct ByteBuffer for DB Implementation?</a>
  *
  * @since 2.1
  */

src/changelog/2.10.0/.release-notes.adoc.ftl

@@ -56,7 +56,9 @@ Those errors should be reported to the tool vendor.
 During testing of the release it was found that one unit test fails when run on Windows.
 When building from source either use `mvn clean install -DskipTests` on Windows or run the build on a different operating system.
 The unit test failure is a problem in the test, not in Log4j.
-As always, pre-built distributions can be downloaded from http://www.apache.org/dist/logging/log4j/[] or the binaries JARs may be obtained from the Maven central repository.
+As always, pre-built distributions can be downloaded from
+https://downloads.apache.org/logging/log4j/[]
+or the binaries JARs may be obtained from the Maven central repository.
 
 Note that subsequent to the 2.9.0 release, for security reasons, `SerializedLayout` is deprecated and no longer used as default in the Socket and JMS appenders.
 `SerializedLayout` can still be used as before, but has to be specified explicitly.

src/changelog/2.22.0/.release-notes.adoc.ftl

@@ -21,7 +21,7 @@
 <#if release.date?has_content>Release date:: ${release.date}</#if>
 
 :cyclonedx-sbom-link: https://cyclonedx.org/capabilities/sbom/[CycloneDX Software Bill of Materials (SBOM)]
-:cyclonedx-vdr-link: https://cyclonedx.org/capabilities/vdr[CycloneDX Vulnerability Disclosure Report (VDR)]
+:cyclonedx-vdr-link: https://cyclonedx.org/capabilities/vdr/[CycloneDX Vulnerability Disclosure Report (VDR)]
 
 This releases provides a {cyclonedx-sbom-link} along with each artifact and contains bug fixes addressing issues in the JPMS & OSGi infrastructure overhauled in `2.21.0`, dependency updates, and some other minor fixes and improvements.
 

src/site/antora/modules/ROOT/pages/log4j-docker.adoc

@@ -17,7 +17,7 @@ Licensed to the Apache Software Foundation (ASF) under one or more
 
 = Log4j Docker
 
-Log4j Docker module offers https://docker.com[Docker]-specific utilities.
+Log4j Docker module offers https://www.docker.com/[Docker]-specific utilities.
 
 [#install]
 == Installation

src/site/antora/modules/ROOT/pages/manual/appenders.adoc

@@ -292,7 +292,8 @@ maximum capacity.
 [#CassandraAppender]
 === CassandraAppender
 
-The CassandraAppender writes its output to an https://cassandra.apache.org/[Apache Cassandra]
+The CassandraAppender writes its output to an
+https://cassandra.apache.org/_/index.html[Apache Cassandra]
 database.
 A keyspace and table must be configured ahead of time, and the columns of that table are mapped in a configuration file.
 Each column can specify either a xref:manual/pattern-layout.adoc[]https://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout[StringLayout] (e.g., a PatternLayout) along with an optional conversion type, or only a conversion type for `org.apache.logging.log4j.spi.ThreadContextMap` or
@@ -2171,7 +2172,7 @@ http://mongodb.github.io/mongo-java-driver/4.0/apidocs/mongodb-driver-core/com/m
 in the format `mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database.collection][?options]]`.
 
 |capped |boolean |Enable support for
-https://docs.mongodb.com/manual/core/capped-collections/[capped
+https://www.mongodb.com/docs/manual/core/capped-collections/[capped
 collections]
 
 |collectionSize |long |Specify the size in bytes of the capped collection
@@ -4362,7 +4363,7 @@ If not specified, the default system Charset will be used.
 default is 0 (infinite timeout, like `Socket.connect()` methods).
 
 |enterpriseNumber |integer |The IANA enterprise number as described in
-http://tools.ietf.org/html/rfc5424#section-7.2.2[RFC 5424]
+https://datatracker.ietf.org/doc/html/rfc5424#section-7.2.2[RFC 5424]
 
 |filter |Filter |A Filter to determine if the event should be handled by
 this Appender. More than one Filter may be used by using a

src/site/antora/modules/ROOT/pages/manual/installation.adoc

@@ -16,7 +16,7 @@
 ////
 
 :jpl-link: https://openjdk.org/jeps/264[JPL (Java Platform Logging)]
-:jul-link: https://docs.oracle.com/en/java/javase/{java-target-version}/core/java-logging-overview.html[JUL (Java Logging)]
+:jul-link: https://docs.oracle.com/javase/{java-target-version}/docs/technotes/guides/logging/overview.html[JUL (Java Logging)]
 
 = Installation
 

src/site/antora/modules/ROOT/pages/manual/json-template-layout.adoc

@@ -471,7 +471,7 @@ The **default event template** modelling https://www.elastic.co/guide/en/ecs/cur
 Models https://github.com/logstash/log4j-jsonevent-layout[Logstash `json_event` pattern for Log4j]
 
 {project-github-url}/tree/2.x/log4j-layout-template-json/src/main/resources/GelfLayout.json[`GelfLayout.json`]::
-Models https://docs.graylog.org/en/3.1/pages/gelf.html#gelf-payload-specification[the Graylog Extended Log Format (GELF) payload specification] with additional `_thread` and `_logger` fields.
+Models https://go2docs.graylog.org/current/getting_in_log_data/gelf.html#GELFPayloadSpecification[the Graylog Extended Log Format (GELF) payload specification] with additional `_thread` and `_logger` fields.
 +
 [TIP]
 ====

src/site/antora/modules/ROOT/pages/soa.adoc

@@ -81,7 +81,8 @@ For example, https://12factor.net/logs[The Twelve-Factor App] and https://kubern
 
 * A *library* can act as proxy.
 It can tap into the logging API and forward it to an external service.
-For instance, https://docs.datadoghq.com/logs/log_collection/java[Datadog's Java Log Collector] uses this mechanism.
+For instance,
+https://docs.datadoghq.com/logs/log_collection/java/?tab=log4j2[Datadog's Java Log Collector] uses this mechanism.
 
 * An external *service* can act as a proxy, which applications can write logs to.
 For example, you can write to https://www.elastic.co/logstash[Logstash], a https://kubernetes.io/docs/concepts/cluster-administration/logging/#sidecar-container-with-a-logging-agent[Kubernetes logging agent sidecar], or a https://redis.io/glossary/redis-queue/[Redis queue] over a socket.

src/site/antora/modules/ROOT/partials/concepts.adoc

@@ -24,7 +24,7 @@
 
 :jcl-link: https://commons.apache.org/proper/commons-logging/[JCL (Apache Commons Logging)]
 :jpl-link: https://openjdk.org/jeps/264[JPL (Java Platform Logging)]
-:jul-link: https://docs.oracle.com/en/java/javase/{java-target-version}/core/java-logging-overview.html[JUL (Java Logging)]
+:jul-link: https://docs.oracle.com/javase/{java-target-version}/docs/technotes/guides/logging/overview.html[JUL (Java Logging)]
 :jboss-logging-link: https://github.com/jboss-logging/jboss-logging[JBoss Logging]
 
 // end::inc[]