# HG changeset patch
# User Andreas Woess <andreas.woess@jku.at>
# Date 1383741088 -3600
# Node ID c3bdd186e6cfa98bf401fc99df8297a1b2fca6ee
# Parent  697ef4cf18c0ef6dbae3d1b1ec3adb5362b5230f
fix possible NPE in TruffleCompiler with TraceTruffleCompilation and background compilation enabled.

With background compilation, the installed code can already be invalidated when compiledMethod.getCode() is called, in which case it returns null.

diff -r 697ef4cf18c0 -r c3bdd186e6cf graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCompilerImpl.java
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCompilerImpl.java	Tue Nov 05 19:10:52 2013 +0100
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCompilerImpl.java	Wed Nov 06 13:31:28 2013 +0100
@@ -160,12 +160,16 @@
         if (compiledMethod == null) {
             throw new BailoutException("Could not install method, code cache is full!");
         }
+        if (!compiledMethod.isValid()) {
+            return null;
+        }
 
         if (TraceTruffleCompilation.getValue()) {
             int nodeCountTruffle = NodeUtil.countNodes(compilable.getRootNode());
-            OUT.printf("[truffle] optimized %-50s %d |Nodes %7d |Time %5.0f(%4.0f+%-4.0f)ms |Nodes %5d/%5d |CodeSize %d\n", compilable.getRootNode(), compilable.hashCode(), nodeCountTruffle,
+            byte[] code = compiledMethod.getCode();
+            OUT.printf("[truffle] optimized %-50s %x |Nodes %7d |Time %5.0f(%4.0f+%-4.0f)ms |Nodes %5d/%5d |CodeSize %d\n", compilable.getRootNode(), compilable.hashCode(), nodeCountTruffle,
                             (timeCompilationFinished - timeCompilationStarted) / 1e6, (timePartialEvaluationFinished - timeCompilationStarted) / 1e6,
-                            (timeCompilationFinished - timePartialEvaluationFinished) / 1e6, nodeCountPartialEval, nodeCountLowered, compiledMethod.getCode().length);
+                            (timeCompilationFinished - timePartialEvaluationFinished) / 1e6, nodeCountPartialEval, nodeCountLowered, code != null ? code.length : 0);
         }
         return compiledMethod;
     }