### Jazz Patch 1.0
#date: "2014-09-02 22:56:58.000000080 +0530"
#itemid: "teiid/engine/src/main/java/org/teiid/common/buffer" "_2ek94Mk4EeOyTZWcA8Ellg" "_DhDd4MkGEeOyVaKk_DhBMA"
#item_type: "_2ek94Mk4EeOyTZWcA8Ellg" "folder"
#itemid: "teiid/engine/src/main/java/org/teiid/common/buffer/CacheKey.java" "_2euH0Mk4EeOyTZWcA8Ellg" "_DhDd4MkGEeOyVaKk_DhBMA"
#item_type: "_2euH0Mk4EeOyTZWcA8Ellg" "file"
#before_state: "teiid/engine/src/main/java/org/teiid/common/buffer/CacheKey.java" "_2euH0Mk4EeOyTZWcA8Ellg" "_rUl5cTDNEeSmfpPQ8lCluA"
#
diff -u -N teiid/engine/src/main/java/org/teiid/common/buffer/CacheKey.java teiid/engine/src/main/java/org/teiid/common/buffer/CacheKey.java
--- teiid/engine/src/main/java/org/teiid/common/buffer/CacheKey.java	2014-08-31 10:40:53.000000607 +0530
+++ teiid/engine/src/main/java/org/teiid/common/buffer/CacheKey.java	1970-01-01 05:30:02.000000869 +0530
@@ -22,6 +22,12 @@
 
 package org.teiid.common.buffer;
 
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import org.teiid.logging.LogConstants;
+import org.teiid.logging.LogManager;
+
 public class CacheKey implements Comparable<CacheKey> {
 
 	private Long id;
@@ -32,6 +38,23 @@
 		this.id = id;
 		this.lastAccess = lastAccess;
 		this.orderingValue = orderingValue;
+		
+		logNegativeValue(this.id.longValue(), "id");
+		logNegativeValue(this.lastAccess, "lastAccess");
+		logNegativeValue(this.orderingValue, "orderingValue");
+		
+	}
+	
+	private static void logNegativeValue(long l, String str)
+	{
+		if(l < 0)
+		{
+			final StringWriter out = new StringWriter();
+	        new Exception().printStackTrace(new PrintWriter(out));
+	        LogManager.logInfo(LogConstants.CTX_BUFFER_MGR, str + " is negative.  Stack trace:" + out.toString());
+	        
+	        System.out.println("negative value " + str);
+		}
 	}
 	
 	public Long getId() {
@@ -69,6 +92,7 @@
 	
 	@Override
 	public int compareTo(CacheKey o) {
+		
 		int result = orderingValue < o.orderingValue ? -1 : (orderingValue == o.orderingValue ? 0 : 1);
 		if (result == 0) {
 			result = lastAccess < o.lastAccess ? -1 : (lastAccess == o.lastAccess ? 0 : 1);