remove redundant cast where the type is enforced by an equality comparison

java/ql/lib/semmle/code/java/ControlFlowGraph.qll

@@ -150,7 +150,7 @@ private module ControlFlowGraphImpl {
      * `TypeThrowable` which results in both `TypeError` and `TypeRuntimeException`.
      */
     UncheckedThrowableType getAnUncheckedSubtype() {
-      result = this.(UncheckedThrowableType)
+      result = this
       or
       result instanceof TypeError and this instanceof TypeThrowable
       or

java/ql/lib/semmle/code/java/PrintAst.qll

@@ -665,7 +665,7 @@ final class GenericTypeNode extends PrintAstNode, TGenericTypeNode {
   override Location getLocation() { none() }
 
   override ElementNode getChild(int childIndex) {
-    result.getElement().(TypeVariable) = ty.getTypeParameter(childIndex)
+    result.getElement() = ty.getTypeParameter(childIndex)
   }
 
   /**
@@ -686,7 +686,7 @@ final class GenericCallableNode extends PrintAstNode, TGenericCallableNode {
   override string toString() { result = "(Generic Parameters)" }
 
   override ElementNode getChild(int childIndex) {
-    result.getElement().(TypeVariable) = c.getTypeParameter(childIndex)
+    result.getElement() = c.getTypeParameter(childIndex)
   }
 
   /**

java/ql/lib/semmle/code/java/frameworks/JAXB.qll

@@ -54,7 +54,7 @@ class JaxbType extends Class {
       this.getAnAnnotation() = a and
       a.getType().(JaxbAnnotationType).hasName("XmlAccessorType")
     |
-      result.getAnAccess() = a.getValue("value").(VarAccess)
+      result.getAnAccess() = a.getValue("value")
     )
   }
 

java/ql/lib/semmle/code/xml/MavenPom.qll

@@ -395,9 +395,7 @@ class MavenRepo extends Folder {
   /**
    * Gets a Jar file contained within this repository.
    */
-  File getAJarFile() {
-    result = this.getAChildContainer*().(File) and result.getExtension() = "jar"
-  }
+  File getAJarFile() { result = this.getAChildContainer*() and result.getExtension() = "jar" }
 
   /**
    * Gets any jar artifacts in this repository that match the POM project definition. This is an

java/ql/src/Security/CWE/CWE-833/LockOrderInconsistency.ql

@@ -159,7 +159,7 @@ predicate badMethodAccessLockOrder(
   MethodAccess outerAccess, MethodAccess innerAccess, MethodAccess other
 ) {
   exists(Synched outer, Synched inner |
-    inner.(MethodAccess) = innerAccess and
+    inner = innerAccess and
     inner = outer.getInnerSynch() and
     inner.getLockType() = outer.getLockType() and
     exists(Parameter p, int i | outer.(Method).getAParameter() = p and p.getPosition() = i |