agent/src/share/classes/sun/jvm/hotspot/runtime/VM.java

@@ -244,26 +244,26 @@
                            "using incompatible version of SA and you may see unexpected " +
                            "results.");
      }
   }
 
-  private static final boolean disableDerivedPrinterTableCheck;
+  private static final boolean disableDerivedPointerTableCheck;
   private static final Properties saProps;
 
   static {
      saProps = new Properties();
      URL url = null;
      try {
        url = VM.class.getClassLoader().getResource("sa.properties");
        saProps.load(new BufferedInputStream(url.openStream()));
      } catch (Exception e) {
-       throw new RuntimeException("Unable to load properties  " +
+       System.err.println("Unable to load properties  " +
                                   (url == null ? "null" : url.toString()) +
                                   ": " + e.getMessage());
      }
 
-     disableDerivedPrinterTableCheck = System.getProperty("sun.jvm.hotspot.runtime.VM.disableDerivedPointerTableCheck") != null;
+     disableDerivedPointerTableCheck = System.getProperty("sun.jvm.hotspot.runtime.VM.disableDerivedPointerTableCheck") != null;
   }
 
   private VM(TypeDataBase db, JVMDebugger debugger, boolean isBigEndian) {
     this.db          = db;
     this.debugger    = debugger;

@@ -369,11 +369,12 @@
   }
 
   /** This is used by the debugging system */
   public static void initialize(TypeDataBase db, JVMDebugger debugger) {
     if (soleInstance != null) {
-      throw new RuntimeException("Attempt to initialize VM twice");
+      // Using multiple SA Tool classes in the same process creates a call here.
+      return;
     }
     soleInstance = new VM(db, debugger, debugger.getMachineDescription().isBigEndian());
 
     for (Iterator iter = vmInitializedObservers.iterator(); iter.hasNext(); ) {
       ((Observer) iter.next()).update(null, null);

@@ -681,11 +682,11 @@
     return usingServerCompiler;
   }
 
   /** Returns true if C2 derived pointer table should be used, false otherwise */
   public boolean useDerivedPointerTable() {
-    return !disableDerivedPrinterTableCheck;
+    return !disableDerivedPointerTableCheck;
   }
 
   /** Returns the code cache; should not be used if is core build */
   public CodeCache getCodeCache() {
     if (Assert.ASSERTS_ENABLED) {