do not self-wrap ProcessCanceledException to fix EA-92422 - AUCRRAE: ReadMostlyRWLock.throwIfImpatient

platform/diff-api/src/com/intellij/diff/comparison/DiffTooBigException.java

@@ -23,11 +23,6 @@ public class DiffTooBigException extends ProcessCanceledException {
   public DiffTooBigException() {
   }
 
-  public DiffTooBigException(Throwable cause) {
-    super(cause);
-  }
-
-
   @Override
   public String getMessage() {
     return MESSAGE;

platform/util/src/com/intellij/openapi/progress/ProcessCanceledException.java

@@ -23,5 +23,8 @@ public class ProcessCanceledException extends RuntimeException implements Contro
 
   public ProcessCanceledException(@NotNull Throwable cause) {
     super(cause);
+    if (cause instanceof ProcessCanceledException) {
+      throw new IllegalArgumentException("Must not self-wrap ProcessCanceledException: " + cause);
+    }
   }
 }

platform/util/src/com/intellij/openapi/util/objectTree/ObjectNode.java

@@ -133,7 +133,7 @@ final class ObjectNode<T> {
           myTree.fireExecuted(myObject);
         }
         catch (ProcessCanceledException e) {
-          throw new ProcessCanceledException(e);
+          throw e;
         }
         catch (Throwable e) {
           LOG.error(e);