Applied patch from Teofilis Martisius to improve performance.

Also removed some unused files and fixed the which needed a small change
after the previous patch to build.xml.

 Modified Files:
 	jdbc/Makefile jdbc/org/postgresql/core/Encoding.java
 	jdbc/org/postgresql/jdbc1/AbstractJdbc1Connection.java
 Removed Files:
 	jdbc/utils/CheckVersion.java jdbc/utils/buildDriver
 	jdbc/utils/changelog.pl

1 files changed, 0 insertions, 74 deletions

diff --git a/src/interfaces/jdbc/utils/CheckVersion.java b/src/interfaces/jdbc/utils/CheckVersion.java
deleted file mode 100644
index a2438cd4f9f..00000000000
--- a/src/interfaces/jdbc/utils/CheckVersion.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package utils;
-
-/*
- * This little app checks to see what version of JVM is being used.
- * It does this by checking first the java.vm.version property, and
- * if that fails, it looks for certain classes that should be present.
- */
-public class CheckVersion
-{
-	/*
-	 * Check for the existence of a class by attempting to load it
-	 */
-	public static boolean checkClass(String c)
-	{
-		try
-		{
-			Class.forName(c);
-		}
-		catch (Exception e)
-		{
-			return false;
-		}
-		return true;
-	}
-
-	/*
-	 * This first checks java.vm.version for 1.1, 1.2 or 1.3.
-	 *
-	 * It writes jdbc1 to stdout for the 1.1.x VM.
-	 *
-	 * For 1.2 or 1.3, it checks for the existence of the javax.sql.DataSource
-	 * interface, and if found writes enterprise to stdout. If the interface
-	 * is not found, it writes jdbc2 to stdout.
-	 *
-	 * PS: It also looks for the existence of java.lang.Byte which appeared in
-	 * JDK1.1.0 incase java.vm.version is not heeded by some JVM's.
-	 *
-	 * If it can't work it out, it writes huho to stdout.
-	 *
-	 * The make file uses the written results to determine which rule to run.
-	 *
-	 * Bugs: This needs thorough testing.
-	 */
-	public static void main(String args[])
-	{
-		String vmversion = System.getProperty("java.vm.version");
-
-		System.out.println("postgresql.jdbc=" + System.getProperty("postgresql.jdbc"));
-
-		// We are running a 1.1 JVM
-		if (vmversion.startsWith("1.1"))
-		{
-			System.out.println("jdbc1");
-			//System.exit(0);
-		}
-		else
-			// We are running a 1.2 or 1.3 JVM
-			if (vmversion.startsWith("1.2") ||
-					vmversion.startsWith("1.3") ||
-					checkClass("java.lang.Byte")
-			   )
-			{
-
-				// Check to see if we have the standard extensions. If so, then
-				// we want the enterprise edition, otherwise the jdbc2 driver.
-				if (checkClass("javax.sql.DataSource"))
-					System.out.println("enterprise");
-				else
-					System.out.println("jdbc2");
-				//System.exit(0);
-			}
-		System.setProperty("postgresql.jdbc", "yoyo");
-	}
-}