Merge branch '2.9' into 2.10

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -14,6 +14,11 @@ JSON library.
 === Releases ===
 ------------------------------------------------------------------------
 
+2.10.4 (not yet released)
+
+#605: Handle case when system property access is restricted
+ (reported by rhernandez35@github)
+
 2.10.3 (03-Mar-2020)
 
 #592: DataFormatMatcher#getMatchedFormatName throws NPE when no match exists

src/main/java/com/fasterxml/jackson/core/util/BufferRecyclers.java

@@ -5,7 +5,7 @@
 /**
  * Helper entity used to control access to simple buffer recyling scheme used for
  * some encoding, decoding tasks.
- * 
+ *
  * @see BufferRecycler
  *
  * @since 2.9.2
@@ -33,10 +33,13 @@ public class BufferRecyclers
      */
     private final static ThreadLocalBufferManager _bufferRecyclerTracker;
     static {
-        _bufferRecyclerTracker = "true".equals(System.getProperty(SYSTEM_PROPERTY_TRACK_REUSABLE_BUFFERS))
-                ? ThreadLocalBufferManager.instance()
-                : null;
-    }    
+        boolean trackReusableBuffers = false;
+        try {
+            trackReusableBuffers = "true".equals(System.getProperty(SYSTEM_PROPERTY_TRACK_REUSABLE_BUFFERS));
+        } catch (SecurityException e) { }
+
+        _bufferRecyclerTracker = trackReusableBuffers ? ThreadLocalBufferManager.instance() : null;
+    }
 
     /*
     /**********************************************************