diff --git a/build.gradle b/build.gradle
index f758cdc48aa321a633f0fdbc78cbc34d1c432e2d..c845eb69a79c997a8c497df5103fb1d764ba1732 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,16 +6,12 @@ apply plugin: 'signing'
 
 allprojects {
   project.group = 'de.hhu.stups'
-  project.version = '3.4.0'
+  project.version = '3.4.1-SNAPSHOT'
   project.ext.isSnapshot = project.version.endsWith("-SNAPSHOT")
 
   ext."signing.secretKeyRingFile" = rootProject.file("secring.gpg").absolutePath
 }
 
-wrapper {
-  gradleVersion = "7.4.1"
-}
-
 repositories {
   mavenCentral()
 }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 41d9927a4d4fb3f96a785543079b8df6723c946b..c1962a79e29d3e0ab67b14947c167a862655af9b 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 00e33edef6936b1ada8721cff42201db8c9d8675..37aef8d3f0c9fffa920a8290320a6c78095e1591 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
+networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 1b6c787337ffb79f0e3cf8b1e9f00f680a959de1..aeb74cbb43e3931a2455a838345c3f6b8131aaa2 100755
--- a/gradlew
+++ b/gradlew
@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +80,10 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -143,12 +140,16 @@ fi
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,6 +194,10 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in
@@ -205,6 +210,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
diff --git a/gradlew.bat b/gradlew.bat
index ac1b06f93825db68fb0c0b5150917f340eaa5d02..6689b85beecde676054c39c2408085f41e6be6dc 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal
diff --git a/sablecc-runtime/src/main/java/de/hhu/stups/sablecc/patch/SourcePosition.java b/sablecc-runtime/src/main/java/de/hhu/stups/sablecc/patch/SourcePosition.java
index 2b3451b2d6d91a1c6475f6f96fc9c6cddbdcf40e..a2cb828cd72bbd21ba615a85c309ba9624665b21 100644
--- a/sablecc-runtime/src/main/java/de/hhu/stups/sablecc/patch/SourcePosition.java
+++ b/sablecc-runtime/src/main/java/de/hhu/stups/sablecc/patch/SourcePosition.java
@@ -6,6 +6,8 @@
 
 package de.hhu.stups.sablecc.patch;
 
+import java.util.Objects;
+
 public class SourcePosition implements Comparable<SourcePosition>  {
 
   private final int line;
@@ -25,10 +27,32 @@ public class SourcePosition implements Comparable<SourcePosition>  {
     return pos;
   }
   
+  @Override
+  public boolean equals(final Object obj) {
+    if (this == obj) {
+      return true;
+    }
+    if (obj == null || this.getClass() != obj.getClass()) {
+      return false;
+    }
+    final SourcePosition other = (SourcePosition)obj;
+    return this.getLine() == other.getLine() && this.getPos() == other.getPos();
+  }
+  
+  @Override
+  public int hashCode() {
+    return Objects.hash(this.getLine(), this.getPos());
+  }
+  
+  @Override
   public int compareTo(SourcePosition that) {
-    if (that.line < line) return 1;
-    if (that.line > line) return -1;
-    return pos-that.pos;
+    if (this.line < that.line) {
+      return -1;
+    } else if (this.line > that.line) {
+      return 1;
+    } else {
+      return Integer.compare(this.pos, that.pos);
+    }
   }
   
   @Override
diff --git a/src/main/java/org/sablecc/sablecc/analysis/Analysis.java b/src/main/java/org/sablecc/sablecc/analysis/Analysis.java
index bd6623f34ce80085653286105b10c091fb537cab..999e37aa76d901764bba0d5d048dbe255ea3fadd 100644
--- a/src/main/java/org/sablecc/sablecc/analysis/Analysis.java
+++ b/src/main/java/org/sablecc/sablecc/analysis/Analysis.java
@@ -7,24 +7,32 @@ import org.sablecc.sablecc.node.*;
 public interface Analysis extends Switch
 {
     /**
+     * @param node the node for which to look up the associated object
+     * @return the corresponding object previously associated using {@link #setIn(Node, Object)}, or {@code null} if there is none
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
     Object getIn(Node node);
 
     /**
+     * @param node the node with which to associate the given object
+     * @param o the object to associate with the node
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
     void setIn(Node node, Object o);
 
     /**
+     * @param node the node for which to look up the associated object
+     * @return the corresponding object previously associated using {@link #setOut(Node, Object)}, or {@code null} if there is none
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
     Object getOut(Node node);
 
     /**
+     * @param node the node with which to associate the given object
+     * @param o the object to associate with the node
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
diff --git a/src/main/java/org/sablecc/sablecc/analysis/AnalysisAdapter.java b/src/main/java/org/sablecc/sablecc/analysis/AnalysisAdapter.java
index 9a756d94c1735dc12b47ac2104c3306eaa20ff8d..c07b2600c60eb1a18f3fef46da7b244d42d8e74a 100644
--- a/src/main/java/org/sablecc/sablecc/analysis/AnalysisAdapter.java
+++ b/src/main/java/org/sablecc/sablecc/analysis/AnalysisAdapter.java
@@ -19,9 +19,6 @@ public class AnalysisAdapter implements Analysis
     @Deprecated
     private Hashtable<Node,Object> out;
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public Object getIn(Node node)
@@ -34,9 +31,6 @@ public class AnalysisAdapter implements Analysis
         return this.in.get(node);
     }
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public void setIn(Node node, Object o)
@@ -56,9 +50,6 @@ public class AnalysisAdapter implements Analysis
         }
     }
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public Object getOut(Node node)
@@ -71,9 +62,6 @@ public class AnalysisAdapter implements Analysis
         return this.out.get(node);
     }
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public void setOut(Node node, Object o)
diff --git a/src/main/java/org/sablecc/sablecc/parser/Parser.java b/src/main/java/org/sablecc/sablecc/parser/Parser.java
index aadf7435f6aceccef7955e225392839b594c6d00..c9535dfa6f49dd99abe9764e6e84e6094d3f2a5a 100644
--- a/src/main/java/org/sablecc/sablecc/parser/Parser.java
+++ b/src/main/java/org/sablecc/sablecc/parser/Parser.java
@@ -146,6 +146,8 @@ public class Parser implements IParser
     }
 
     /**
+     * @param productionRuleAsString internal name of the production rule in question
+     * @return {@code false} if creation of a new list should be skipped, {@code true} for default behavior
      * @deprecated Overriding this method no longer has any effect. This optimization is now applied automatically iff it is safe.
      */
     @Deprecated
diff --git a/src/main/resources/org/sablecc/sablecc/analyses.txt b/src/main/resources/org/sablecc/sablecc/analyses.txt
index f7c37c0826aa1b0b0a0d42521e32f4b83c8038cd..4a316079af302c480ee5a8f21a58d2a4215dfb89 100644
--- a/src/main/resources/org/sablecc/sablecc/analyses.txt
+++ b/src/main/resources/org/sablecc/sablecc/analyses.txt
@@ -15,24 +15,32 @@ import $1$.*;
 public interface Analysis extends Switch
 {
     /**
+     * @param node the node for which to look up the associated object
+     * @return the corresponding object previously associated using {@link #setIn(Node, Object)}, or {@code null} if there is none
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
     Object getIn(Node node);
 
     /**
+     * @param node the node with which to associate the given object
+     * @param o the object to associate with the node
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
     void setIn(Node node, Object o);
 
     /**
+     * @param node the node for which to look up the associated object
+     * @return the corresponding object previously associated using {@link #setOut(Node, Object)}, or {@code null} if there is none
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
     Object getOut(Node node);
 
     /**
+     * @param node the node with which to associate the given object
+     * @param o the object to associate with the node
      * @deprecated If you need a map field, declare it yourself.
      */
     @Deprecated
@@ -78,9 +86,6 @@ public class AnalysisAdapter implements Analysis
     @Deprecated
     private Hashtable<Node,Object> out;
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public Object getIn(Node node)
@@ -93,9 +98,6 @@ public class AnalysisAdapter implements Analysis
         return this.in.get(node);
     }
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public void setIn(Node node, Object o)
@@ -115,9 +117,6 @@ public class AnalysisAdapter implements Analysis
         }
     }
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public Object getOut(Node node)
@@ -130,9 +129,6 @@ public class AnalysisAdapter implements Analysis
         return this.out.get(node);
     }
 
-    /**
-     * @deprecated If you need a map field, declare it yourself.
-     */
     @Deprecated
     @Override
     public void setOut(Node node, Object o)
diff --git a/src/main/resources/org/sablecc/sablecc/parser.txt b/src/main/resources/org/sablecc/sablecc/parser.txt
index d6d876b18ead8e26bf711fa9d343eb7fc296c64f..e24642dd9c693de1b61f505c08586fdaba81ff72 100644
--- a/src/main/resources/org/sablecc/sablecc/parser.txt
+++ b/src/main/resources/org/sablecc/sablecc/parser.txt
@@ -154,6 +154,8 @@ public class Parser implements IParser
     }
 
     /**
+     * @param productionRuleAsString internal name of the production rule in question
+     * @return {@code false} if creation of a new list should be skipped, {@code true} for default behavior
      * @deprecated Overriding this method no longer has any effect. This optimization is now applied automatically iff it is safe.
      */
     @Deprecated