Better diagnostics + basic recursion detection in memoized functions

2013-10-22 13:58:27 +04:00
parent 4aadf6e802
commit ba8bcb2e9a
1 changed files with 2 additions and 2 deletions
@@ -277,13 +277,13 @@ public class LockBasedStorageManager implements StorageManager {
                try {
                    V typedValue = compute.invoke(input);
                    Object oldValue = cache.put(input, WrappedValues.escapeNull(typedValue));
-                    assert oldValue == null : "Race condition detected";
+                    assert oldValue == null : "Race condition or recursion detected. Old value is " + oldValue;

                    return typedValue;
                }
                catch (Throwable throwable) {
                    Object oldValue = cache.put(input, WrappedValues.escapeThrowable(throwable));
-                    assert oldValue == null : "Race condition detected";
+                    assert oldValue == null : "Race condition or recursion detected. Old value is " + oldValue;

                    throw ExceptionUtils.rethrow(throwable);
                }