diff -r ca27d64d6a87 src/java.base/share/classes/java/lang/String.java
--- a/src/java.base/share/classes/java/lang/String.java	Tue Oct 13 15:02:58 2015 +0200
+++ b/src/java.base/share/classes/java/lang/String.java	Tue Oct 13 21:21:48 2015 +0300
@@ -167,11 +167,18 @@
      *
      * Implementation note: an actual value for this field is injected by JVM.
      * In order to communicate that this static final field is not statically
-     * foldable, we are using the idiomatic expression recommended by JLS 13.4.9.
-     * It does not matter if we initialize this field with either "true" or "false"
-     * here.
+     * foldable, we are using the static initializer that sets the value. We
+     * cannot do anything else apart from calling a native method into the VM,
+     * because any Java call can and will build a circular dependency on a String
+     * back, with devastating results.
+     *
+     * It does not matter if we initialize this field with either "true" or "false".
      */
-    static final boolean COMPACT_STRINGS = new Boolean(true).booleanValue();
+    static final boolean COMPACT_STRINGS;
+
+    static {
+      COMPACT_STRINGS = true;
+    }
 
     /**
      * Class String is special cased within the Serialization Stream Protocol.