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changeset 7153:c421c19b7bf8

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made initialization of GraphPrinterDumpHandler.sdf be lazy to workaround an initialization order issue during VM start up
author Doug Simon <doug.simon@oracle.com>
date Wed, 12 Dec 2012 15:46:11 +0100
parents e86ac899c5be
children 5d0bb7d52783
files graal/com.oracle.graal.printer/src/com/oracle/graal/printer/GraphPrinterDumpHandler.java
diffstat 1 files changed, 8 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.printer/src/com/oracle/graal/printer/GraphPrinterDumpHandler.java	Tue Dec 11 20:54:11 2012 +0100
+++ b/graal/com.oracle.graal.printer/src/com/oracle/graal/printer/GraphPrinterDumpHandler.java	Wed Dec 12 15:46:11 2012 +0100
@@ -39,7 +39,6 @@
  * inspected with the <a href="http://kenai.com/projects/igv">Ideal Graph Visualizer</a>.
  */
 public class GraphPrinterDumpHandler implements DebugDumpHandler {
-    private static final SimpleDateFormat sdf = new SimpleDateFormat("YYYY-MM-dd-HHmm");
 
     private GraphPrinter printer;
     private List<String> previousInlineContext;
@@ -66,6 +65,11 @@
         }
     }
 
+    // This field must be lazily initialized as this class may be loaded in a version
+    // VM startup phase at which not all required features (such as system properties)
+    // are online.
+    private static SimpleDateFormat sdf;
+
     private void initializeFilePrinter() {
         String ext;
         if (GraalOptions.PrintBinaryGraphs) {
@@ -73,6 +77,9 @@
         } else {
             ext = ".gv.xml";
         }
+        if (sdf == null) {
+            sdf = new SimpleDateFormat("YYYY-MM-dd-HHmm");
+        }
         String fileName = "Graphs-" + Thread.currentThread().getName() + "-" + sdf.format(new Date()) + ext;
         try {
             if (GraalOptions.PrintBinaryGraphs) {