Java: Remove code duplication library.

Author: aschackmull

java/ql/src/Metrics/Files/FLinesOfDuplicatedCode.ql

@@ -12,15 +12,8 @@
  *       modularity
  */
 
-import external.CodeDuplication
+import java
 
 from File f, int n
-where
-  n =
-    count(int line |
-      exists(DuplicateBlock d | d.sourceFile() = f |
-        line in [d.sourceStartLine() .. d.sourceEndLine()] and
-        not whitelistedLineForDuplication(f, line)
-      )
-    )
+where none()
 select f, n order by n desc

java/ql/src/Metrics/Files/FLinesOfSimilarCode.ql

@@ -11,15 +11,8 @@
  * @tags testability
  */
 
-import external.CodeDuplication
+import java
 
 from File f, int n
-where
-  n =
-    count(int line |
-      exists(SimilarBlock d | d.sourceFile() = f |
-        line in [d.sourceStartLine() .. d.sourceEndLine()] and
-        not whitelistedLineForDuplication(f, line)
-      )
-    )
+where none()
 select f, n order by n desc

java/ql/src/external/CodeDuplication.qll

@@ -15,11 +15,8 @@
  */
 
 import java
-import CodeDuplication
 
 from AnonymousClass c, AnonymousClass other
-where
-  duplicateAnonymousClass(c, other) and
-  not fileLevelDuplication(c.getCompilationUnit(), other.getCompilationUnit())
+where none()
 select c, "Anonymous class is identical to $@.", other,
   "another anonymous class in " + other.getFile().getStem()

java/ql/src/external/DuplicateAnonymous.ql

@@ -8,16 +8,10 @@
  * @id java/duplicate-block
  */
 
-import CodeDuplication
+import java
 
-from DuplicateBlock d, DuplicateBlock other, int lines, File otherFile, int otherLine
-where
-  lines = d.sourceLines() and
-  lines > 10 and
-  other.getEquivalenceClass() = d.getEquivalenceClass() and
-  other != d and
-  otherFile = other.sourceFile() and
-  otherLine = other.sourceStartLine()
+from BlockStmt d, int lines, File otherFile, int otherLine
+where none()
 select d,
   "Duplicate code: " + lines + " lines are duplicated at " + otherFile.getStem() + ":" + otherLine +
     "."

java/ql/src/external/DuplicateBlock.ql

@@ -16,19 +16,8 @@
  */
 
 import java
-import CodeDuplication
-
-predicate relevant(Method m) {
-  m.getNumberOfLinesOfCode() > 5 and not m.getName().matches("get%")
-  or
-  m.getNumberOfLinesOfCode() > 10
-}
 
 from Method m, Method other
-where
-  duplicateMethod(m, other) and
-  relevant(m) and
-  not fileLevelDuplication(m.getCompilationUnit(), other.getCompilationUnit()) and
-  not classLevelDuplication(m.getDeclaringType(), other.getDeclaringType())
+where none()
 select m, "Method " + m.getName() + " is duplicated in $@.", other,
   other.getDeclaringType().getQualifiedName()

java/ql/src/external/DuplicateMethod.ql

@@ -16,10 +16,7 @@
  */
 
 import java
-import CodeDuplication
 
 from Class c, string message, Class link
-where
-  mostlyDuplicateClass(c, link, message) and
-  not fileLevelDuplication(c.getCompilationUnit(), _)
+where none()
 select c, message, link, link.getQualifiedName()

java/ql/src/external/MostlyDuplicateClass.ql

@@ -16,9 +16,8 @@
  */
 
 import java
-import CodeDuplication
 
 from File f, File other, int percent
-where duplicateFiles(f, other, percent)
+where none()
 select f, percent + "% of the lines in " + f.getStem() + " are copies of lines in $@.", other,
   other.getStem()