diff --git a/kernel/src/main/java/org/kframework/compile/ResolveSemanticCasts.java b/kernel/src/main/java/org/kframework/compile/ResolveSemanticCasts.java
index ced3d3f2e5e..3e31a459e56 100644
--- a/kernel/src/main/java/org/kframework/compile/ResolveSemanticCasts.java
+++ b/kernel/src/main/java/org/kframework/compile/ResolveSemanticCasts.java
@@ -72,17 +72,15 @@ K addSideCondition(K requires, boolean macro) {
       Optional<KApply> sideCondition =
           casts.stream()
               .map(
-                  k -> {
-                    return new TransformK() {
-                      @Override
-                      public K apply(KVariable k) {
-                        if (varToTypedVar.containsKey(k)) {
-                          return varToTypedVar.get(k);
-                        }
-                        return k;
+                  k -> new TransformK() {
+                    @Override
+                    public K apply(KVariable k) {
+                      if (varToTypedVar.containsKey(k)) {
+                        return varToTypedVar.get(k);
                       }
-                    }.apply(k);
-                  })
+                      return k;
+                    }
+                  }.apply(k))
               .map(k -> KApply(KLabel("is" + getSortNameOfCast((KApply) k)), transform(k)))
               .reduce(BooleanUtils::and);
       if (!sideCondition.isPresent()) {
diff --git a/kernel/src/main/java/org/kframework/compile/SortInfo.java b/kernel/src/main/java/org/kframework/compile/SortInfo.java
index 6632b53a5a4..c33d4777551 100644
--- a/kernel/src/main/java/org/kframework/compile/SortInfo.java
+++ b/kernel/src/main/java/org/kframework/compile/SortInfo.java
@@ -57,9 +57,7 @@ public static SortInfo fromModule(Module module) {
     joinOps
         .asMap()
         .forEach(
-            (sort, labels) -> {
-              info.closeOperators.put(sort, Iterators.getNext(labels.iterator(), null));
-            });
+            (sort, labels) -> info.closeOperators.put(sort, Iterators.getNext(labels.iterator(), null)));
     return info;
   }
 }
diff --git a/kernel/src/main/java/org/kframework/kdep/KDepFrontEnd.java b/kernel/src/main/java/org/kframework/kdep/KDepFrontEnd.java
index 212422636d1..7c72d481f77 100644
--- a/kernel/src/main/java/org/kframework/kdep/KDepFrontEnd.java
+++ b/kernel/src/main/java/org/kframework/kdep/KDepFrontEnd.java
@@ -127,9 +127,7 @@ protected int run() {
     List<File> sortedFiles = new ArrayList<File>(allFiles);
     Collections.sort(
         sortedFiles,
-        (File a, File b) -> {
-          return a.getAbsolutePath().compareTo(b.getAbsolutePath());
-        });
+        (File a, File b) -> a.getAbsolutePath().compareTo(b.getAbsolutePath()));
 
     for (File file : sortedFiles) {
       System.out.println("    " + file.getAbsolutePath() + " \\");
diff --git a/kernel/src/main/java/org/kframework/kompile/CompiledDefinition.java b/kernel/src/main/java/org/kframework/kompile/CompiledDefinition.java
index 1d6242aacc9..0cf2dc7b508 100644
--- a/kernel/src/main/java/org/kframework/kompile/CompiledDefinition.java
+++ b/kernel/src/main/java/org/kframework/kompile/CompiledDefinition.java
@@ -116,39 +116,37 @@ private void initializeConfigurationVariableDefaultSorts(FileUtil files) {
     // searching for #SemanticCastTo<Sort>(Map:lookup(_, #token(<VarName>, KConfigVar)))
     Collections.stream(kompiledDefinition.mainModule().rules())
         .forEach(
-            r -> {
-              new VisitK() {
-                @Override
-                public void apply(KApply k) {
-                  if (k.klabel().name().startsWith("project:")
-                      && k.items().size() == 1
-                      && k.items().get(0) instanceof KApply theMapLookup) {
-                    if (KLabels.MAP_LOOKUP.equals(theMapLookup.klabel())
-                        && theMapLookup.size() == 2
-                        && theMapLookup.items().get(1) instanceof KToken t) {
-                      if (t.sort().equals(Sorts.KConfigVar())) {
-                        Sort sort =
-                            Outer.parseSort(k.klabel().name().substring("project:".length()));
-                        configurationVariableDefaultSorts.put(t.s(), sort);
-                        if (sort.equals(Sorts.K())) {
-                          sort = Sorts.KItem();
-                        }
-                        String str =
-                            "declaredConfigVar_"
-                                + t.s().substring(1)
-                                + "='"
-                                + sort.toString()
-                                + "'\n";
-                        sb.append(str);
-                        String astr = "    '" + t.s().substring(1) + "'\n";
-                        arr.append(astr);
+            r -> new VisitK() {
+              @Override
+              public void apply(KApply k) {
+                if (k.klabel().name().startsWith("project:")
+                    && k.items().size() == 1
+                    && k.items().get(0) instanceof KApply theMapLookup) {
+                  if (KLabels.MAP_LOOKUP.equals(theMapLookup.klabel())
+                      && theMapLookup.size() == 2
+                      && theMapLookup.items().get(1) instanceof KToken t) {
+                    if (t.sort().equals(Sorts.KConfigVar())) {
+                      Sort sort =
+                          Outer.parseSort(k.klabel().name().substring("project:".length()));
+                      configurationVariableDefaultSorts.put(t.s(), sort);
+                      if (sort.equals(Sorts.K())) {
+                        sort = Sorts.KItem();
                       }
+                      String str =
+                          "declaredConfigVar_"
+                              + t.s().substring(1)
+                              + "='"
+                              + sort.toString()
+                              + "'\n";
+                      sb.append(str);
+                      String astr = "    '" + t.s().substring(1) + "'\n";
+                      arr.append(astr);
                     }
                   }
-                  super.apply(k);
                 }
-              }.apply(r.body());
-            });
+                super.apply(k);
+              }
+            }.apply(r.body()));
     sb.append(arr);
     sb.append(")\n");