# HG changeset patch
# User Josef Eisl <josef.eisl@jku.at>
# Date 1451906258 -3600
# Node ID dba757ef0c79e1924ebe281a6bc0ff849671d826
# Parent  d5320a931138efced1c6002e425c48d99350e6cd
TraceRA: work around warning with newer ecj versions.

Fixing the warning would cause an error with older ecj versions.

diff -r d5320a931138 -r dba757ef0c79 graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/alloc/TraceBuilder.java
--- a/graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/alloc/TraceBuilder.java	Mon Jan 04 01:45:30 2016 +0100
+++ b/graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/alloc/TraceBuilder.java	Mon Jan 04 12:17:38 2016 +0100
@@ -93,7 +93,7 @@
 
     private TraceBuilder(List<T> blocks) {
         processed = new BitSet(blocks.size());
-        worklist = new PriorityQueue<T>(TraceBuilder::compare);
+        worklist = createQueue();
         assert (worklist != null);
 
         blocked = new int[blocks.size()];
@@ -103,7 +103,12 @@
         }
     }
 
-    private static <T extends AbstractBlockBase<T>> int compare(T a, T b) {
+    @SuppressWarnings("unchecked")
+    private PriorityQueue<T> createQueue() {
+        return (PriorityQueue<T>) new PriorityQueue<AbstractBlockBase<?>>(TraceBuilder::compare);
+    }
+
+    private static int compare(AbstractBlockBase<?> a, AbstractBlockBase<?> b) {
         return Double.compare(b.probability(), a.probability());
     }