Only initialise loggers when Configuration.DEBUG is true.

Avoid floating point arithmetic when computing 1.5 * length.
Cast instance generated by reflection to correct type.
Remove redundant super() calls and initialisations.
Drop unused variable.

2010-05-09  Ivan Maidanski  <ivmai@mail.ru>

	* gnu/java/security/Properties.java: Only
	initialise log if Configuration.DEBUG is true.
	* gnu/java/security/der/DERWriter.java:
	(toUtf8(String)): Calculate 1.5 * len using
	len + (len >> 1) to avoid multiplication by a floating-point
	number.
	* gnu/java/security/hash/Whirlpool.java: Only
	initialise log if Configuration.DEBUG is true.
	* gnu/java/security/jce/sig/EncodedKeyFactory.java: Likewise.
	* gnu/java/security/jce/sig/SignatureAdapter.java: Likewise.
	* gnu/java/security/key/dss/DSSKeyPairGenerator.java: Likewise.
	* gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java: Likewise.
	* gnu/java/security/key/rsa/RSAKeyPairGenerator.java: Likewise.
	* gnu/java/security/key/rsa/RSAKeyPairPKCS8Codec.java: Likewise.
	* gnu/java/security/key/rsa/RSAKeyPairX509Codec.java: Likewise.
	* gnu/java/security/pkcs/PKCS7SignedData.java: Likewise.
	* gnu/java/security/pkcs/SignerInfo.java: Likewise.
	(SignerInfo(BERReader)): Only print version if Configuration.DEBUG is
	true, as with other output.
	* gnu/java/security/provider/PKIXCertPathValidatorImpl.java:
	Only initialise log if Configuration.DEBUG is true.
	* gnu/java/security/sig/rsa/EMSA_PSS.java: Likewise.
	* gnu/java/security/sig/rsa/RSAPSSSignature.java: Likewise.
	* gnu/java/security/x509/X509CRL.java: Likewise.
	* gnu/java/security/x509/X509CRLEntry.java: Likewise.
	* gnu/java/security/x509/ext/Extension.java: Likewise.
	* gnu/javax/crypto/cipher/Anubis.java: Likewise.
	* gnu/javax/crypto/cipher/BaseCipher.java: Likewise.
	* gnu/javax/crypto/cipher/Khazad.java: Likewise.
	* gnu/javax/crypto/cipher/Rijndael.java: Likewise.
	* gnu/javax/crypto/cipher/Twofish.java: Likewise.
	* gnu/javax/crypto/jce/cipher/KeyWrappingAlgorithmAdapter.java: Likewise.
	* gnu/javax/crypto/jce/keyring/GnuKeyring.java: Likewise.
	* gnu/javax/crypto/jce/params/BlockCipherParameters.java: Likewise.
	* gnu/javax/crypto/jce/prng/ICMRandomSpi.java: Likewise.
	* gnu/javax/crypto/jce/prng/UMacRandomSpi.java: Likewise.
	* gnu/javax/crypto/key/dh/GnuDHKeyPairGenerator.java: Likewise.
	(sha): Drop unused variable.
	(rnd): Use implicit initialisation to null as with other variables.
	* gnu/javax/crypto/key/srp6/SRPKeyPairGenerator.java:
	Only initialise log if Configuration.DEBUG is true.
	* gnu/javax/crypto/keyring/Entry.java: Likewise.
	* gnu/javax/crypto/keyring/EnvelopeEntry.java: Likewise.
	* gnu/javax/crypto/keyring/GnuPublicKeyring.java: Likewise.
	* gnu/javax/crypto/mac/OMAC.java: Likewise.
	* gnu/javax/crypto/pad/BasePad.java: Likewise.
	* gnu/javax/crypto/pad/PKCS1_V1_5.java: Likewise.
	* gnu/javax/crypto/pad/PKCS7.java: Likewise.
	* gnu/javax/crypto/pad/TBC.java: Likewise.
	* gnu/javax/crypto/prng/CSPRNG.java: Likewise.
	(getSystemInstance()): Clarify bracketing of for loop
	and ignorance of exceptions in the OTHER case.
	* gnu/javax/crypto/sasl/SaslInputStream.java:
	Only initialise log if Configuration.DEBUG is true.
	* gnu/javax/crypto/sasl/SaslOutputStream.java: Likewise.
	* gnu/javax/crypto/sasl/srp/SRPClient.java: Likewise.
	* gnu/javax/crypto/sasl/srp/SRPServer.java: Likewise.
	* gnu/javax/security/auth/login/ConfigFileParser.java: Likewise.
	(map): Make final.
	* gnu/javax/security/auth/login/ConfigFileTokenizer.java:
	Only initialise log if Configuration.DEBUG is true.
	(br): Make final.
	(ConfigFileTokenizer(Reader)): Remove explicit initialisation of
	initialised and call to superclass when superclass is Object.
	* gnu/javax/security/auth/login/GnuConfiguration.java:
	Only iniialise log if Configuration.DEBUG is true.
	* java/math/BigInteger.java: Likewise.

18 files changed, 63 insertions, 39 deletions

diff --git a/gnu/java/security/Properties.java b/gnu/java/security/Properties.java
index 2213bde06..1a4bf2276 100644
--- a/gnu/java/security/Properties.java
+++ b/gnu/java/security/Properties.java
@@ -1,5 +1,5 @@
 /* Properties.java -- run-time configuration properties.
-   Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2006, 2010  Free Software Foundation, Inc.
 
 This file is a part of GNU Classpath.
 
@@ -54,7 +54,8 @@ import java.util.logging.Logger;
  */
 public final class Properties
 {
-  private static final Logger log = Logger.getLogger(Properties.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                        Logger.getLogger(Properties.class.getName()) : null;
 
   public static final String VERSION = "gnu.crypto.version";
 
diff --git a/gnu/java/security/der/DERWriter.java b/gnu/java/security/der/DERWriter.java
index 0c2633605..cea3fa31d 100644
--- a/gnu/java/security/der/DERWriter.java
+++ b/gnu/java/security/der/DERWriter.java
@@ -1,5 +1,5 @@
 /* DERWriter.java -- write Java types in DER format.
-   Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2005, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -281,9 +281,9 @@ public class DERWriter implements DER
 
   private static byte[] toUtf8(String string)
   {
-    ByteArrayOutputStream buf =
-      new ByteArrayOutputStream((int)(string.length() * 1.5));
-    for (int i = 0; i < string.length(); i++)
+    int len = string.length();
+    ByteArrayOutputStream buf = new ByteArrayOutputStream(len + (len >> 1));
+    for (int i = 0; i < len; i++)
       {
         char c = string.charAt(i);
         if (c < 0x0080)
diff --git a/gnu/java/security/hash/Whirlpool.java b/gnu/java/security/hash/Whirlpool.java
index 574104074..29eed59ba 100644
--- a/gnu/java/security/hash/Whirlpool.java
+++ b/gnu/java/security/hash/Whirlpool.java
@@ -1,5 +1,5 @@
 /* Whirlpool.java --
-   Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2006, 2010 Free Software Foundation, Inc.
 
 This file is a part of GNU Classpath.
 
@@ -67,7 +67,9 @@ import java.util.logging.Logger;
 public final class Whirlpool
     extends BaseHash
 {
-  private static final Logger log = Logger.getLogger(Whirlpool.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                        Logger.getLogger(Whirlpool.class.getName()) : null;
+
   private static final int BLOCK_SIZE = 64; // inner block size in bytes
 
   /** The digest of the 0-bit long message. */
diff --git a/gnu/java/security/jce/sig/EncodedKeyFactory.java b/gnu/java/security/jce/sig/EncodedKeyFactory.java
index 19ec088c5..ec7420138 100644
--- a/gnu/java/security/jce/sig/EncodedKeyFactory.java
+++ b/gnu/java/security/jce/sig/EncodedKeyFactory.java
@@ -1,5 +1,5 @@
 /* EncodedKeyFactory.java -- JCE Encoded key factory Adapter
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -78,7 +78,8 @@ import javax.crypto.spec.DHPublicKeySpec;
 public class EncodedKeyFactory
     extends KeyFactorySpi
 {
-  private static final Logger log = Logger.getLogger(EncodedKeyFactory.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(EncodedKeyFactory.class.getName()) : null;
 
   private static Object invokeConstructor(String className, Object[] params)
       throws InvalidKeySpecException
diff --git a/gnu/java/security/jce/sig/SignatureAdapter.java b/gnu/java/security/jce/sig/SignatureAdapter.java
index 0ed1e2f41..efe3681ca 100644
--- a/gnu/java/security/jce/sig/SignatureAdapter.java
+++ b/gnu/java/security/jce/sig/SignatureAdapter.java
@@ -1,5 +1,5 @@
 /* SignatureAdapter.java --
-   Copyright 2001, 2002, 2006 Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2006, 2010 Free Software Foundation, Inc.
 
 This file is a part of GNU Classpath.
 
@@ -75,7 +75,8 @@ class SignatureAdapter
     extends SignatureSpi
     implements Cloneable
 {
-  private static final Logger log = Logger.getLogger(SignatureAdapter.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(SignatureAdapter.class.getName()) : null;
 
   /** Our underlying signature instance. */
   private ISignature adaptee;
diff --git a/gnu/java/security/key/dss/DSSKeyPairGenerator.java b/gnu/java/security/key/dss/DSSKeyPairGenerator.java
index 6bda4e88e..70df734a9 100644
--- a/gnu/java/security/key/dss/DSSKeyPairGenerator.java
+++ b/gnu/java/security/key/dss/DSSKeyPairGenerator.java
@@ -1,5 +1,5 @@
 /* DSSKeyPairGenerator.java --
-   Copyright 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003, 2006, 2010 Free Software Foundation, Inc.
 
 This file is a part of GNU Classpath.
 
@@ -66,7 +66,8 @@ import java.util.logging.Logger;
 public class DSSKeyPairGenerator
     implements IKeyPairGenerator
 {
-  private static final Logger log = Logger.getLogger(DSSKeyPairGenerator.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(DSSKeyPairGenerator.class.getName()) : null;
 
   /** The BigInteger constant 2. */
   private static final BigInteger TWO = BigInteger.valueOf(2L);
diff --git a/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java b/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java
index a59ca3cee..1806ecf58 100644
--- a/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java
+++ b/gnu/java/security/key/dss/DSSKeyPairPKCS8Codec.java
@@ -1,5 +1,5 @@
 /* DSSKeyPairPKCS8Codec.java -- PKCS#8 Encoding/Decoding handler
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -67,7 +67,9 @@ import java.util.logging.Logger;
 public class DSSKeyPairPKCS8Codec
     implements IKeyPairCodec
 {
-  private static final Logger log = Logger.getLogger(DSSKeyPairPKCS8Codec.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(DSSKeyPairPKCS8Codec.class.getName()) : null;
+
   private static final OID DSA_ALG_OID = new OID(Registry.DSA_OID_STRING);
 
   // implicit 0-arguments constructor
diff --git a/gnu/java/security/key/rsa/RSAKeyPairGenerator.java b/gnu/java/security/key/rsa/RSAKeyPairGenerator.java
index bec60d350..99c313944 100644
--- a/gnu/java/security/key/rsa/RSAKeyPairGenerator.java
+++ b/gnu/java/security/key/rsa/RSAKeyPairGenerator.java
@@ -1,5 +1,5 @@
 /* RSAKeyPairGenerator.java --
-   Copyright 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003, 2006, 2010 Free Software Foundation, Inc.
 
 This file is a part of GNU Classpath.
 
@@ -70,7 +70,8 @@ import java.util.logging.Logger;
 public class RSAKeyPairGenerator
     implements IKeyPairGenerator
 {
-  private static final Logger log = Logger.getLogger(RSAKeyPairGenerator.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(RSAKeyPairGenerator.class.getName()) : null;
 
   /** The BigInteger constant 1. */
   private static final BigInteger ONE = BigInteger.ONE;
diff --git a/gnu/java/security/key/rsa/RSAKeyPairPKCS8Codec.java b/gnu/java/security/key/rsa/RSAKeyPairPKCS8Codec.java
index 2785f02c8..b07ed667c 100644
--- a/gnu/java/security/key/rsa/RSAKeyPairPKCS8Codec.java
+++ b/gnu/java/security/key/rsa/RSAKeyPairPKCS8Codec.java
@@ -1,5 +1,5 @@
 /* RSAKeyPairPKCS8Codec.java -- PKCS#8 Encoding/Decoding handler
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -64,7 +64,9 @@ import java.util.logging.Logger;
 public class RSAKeyPairPKCS8Codec
     implements IKeyPairCodec
 {
-  private static final Logger log = Logger.getLogger(RSAKeyPairPKCS8Codec.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(RSAKeyPairPKCS8Codec.class.getName()) : null;
+
   private static final OID RSA_ALG_OID = new OID(Registry.RSA_OID_STRING);
 
   // implicit 0-arguments constructor
diff --git a/gnu/java/security/key/rsa/RSAKeyPairX509Codec.java b/gnu/java/security/key/rsa/RSAKeyPairX509Codec.java
index 9ad6ae029..36fd75c98 100644
--- a/gnu/java/security/key/rsa/RSAKeyPairX509Codec.java
+++ b/gnu/java/security/key/rsa/RSAKeyPairX509Codec.java
@@ -1,5 +1,5 @@
 /* RSAKeyPairX509Codec.java -- X.509 Encoding/Decoding handler
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -65,7 +65,9 @@ import java.util.logging.Logger;
 public class RSAKeyPairX509Codec
     implements IKeyPairCodec
 {
-  private static final Logger log = Logger.getLogger(RSAKeyPairX509Codec.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(RSAKeyPairX509Codec.class.getName()) : null;
+
   private static final OID RSA_ALG_OID = new OID(Registry.RSA_OID_STRING);
 
   // implicit 0-arguments constructor
diff --git a/gnu/java/security/pkcs/PKCS7SignedData.java b/gnu/java/security/pkcs/PKCS7SignedData.java
index adb00a3be..e479d2e8c 100644
--- a/gnu/java/security/pkcs/PKCS7SignedData.java
+++ b/gnu/java/security/pkcs/PKCS7SignedData.java
@@ -1,5 +1,5 @@
 /* PKCS7SignedData.java -- reader/writer for PKCS#7 signedData objects
-   Copyright (C) 2004, 2005, 2006  Free Software Foundation, Inc.
+   Copyright (C) 2004, 2005, 2006, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -78,7 +78,8 @@ import java.util.logging.Logger;
  */
 public class PKCS7SignedData
 {
-  private static final Logger log = Logger.getLogger(PKCS7SignedData.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(PKCS7SignedData.class.getName()) : null;
 
   public static final OID PKCS7_SIGNED_DATA = new OID("1.2.840.113549.1.7.2");
 
diff --git a/gnu/java/security/pkcs/SignerInfo.java b/gnu/java/security/pkcs/SignerInfo.java
index 645ed67bb..07ce4d71b 100644
--- a/gnu/java/security/pkcs/SignerInfo.java
+++ b/gnu/java/security/pkcs/SignerInfo.java
@@ -1,5 +1,5 @@
 /* SignerInfo.java -- a SignerInfo object, from PKCS #7
-   Copyright (C) 2004, 2005  Free Software Foundation, Inc.
+   Copyright (C) 2004, 2005, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -59,7 +59,8 @@ import javax.security.auth.x500.X500Principal;
 
 public class SignerInfo
 {
-  private static final Logger log = Logger.getLogger(SignerInfo.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                        Logger.getLogger(SignerInfo.class.getName()) : null;
 
   private final BigInteger version;
   private final BigInteger serialNumber;
@@ -111,7 +112,8 @@ public class SignerInfo
       throw new BEREncodingException("malformed Version");
 
     version = (BigInteger) val.getValue();
-    log.fine("  Version: " + version);
+    if (Configuration.DEBUG)
+      log.fine("  Version: " + version);
 
     val = ber.read();
     if (!val.isConstructed())
diff --git a/gnu/java/security/provider/PKIXCertPathValidatorImpl.java b/gnu/java/security/provider/PKIXCertPathValidatorImpl.java
index d4ce4aeb4..e0d318777 100644
--- a/gnu/java/security/provider/PKIXCertPathValidatorImpl.java
+++ b/gnu/java/security/provider/PKIXCertPathValidatorImpl.java
@@ -1,5 +1,5 @@
 /* PKIXCertPathValidatorImpl.java -- PKIX certificate path validator.
-   Copyright (C) 2004, 2005, 2006  Free Software Foundation, Inc.
+   Copyright (C) 2004, 2005, 2006, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -97,7 +97,8 @@ import java.util.logging.Logger;
 public class PKIXCertPathValidatorImpl
     extends CertPathValidatorSpi
 {
-  private static final Logger log = Logger.getLogger(PKIXCertPathValidatorImpl.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+        Logger.getLogger(PKIXCertPathValidatorImpl.class.getName()) : null;
 
   public static final String ANY_POLICY = "2.5.29.32.0";
 
diff --git a/gnu/java/security/sig/rsa/EMSA_PSS.java b/gnu/java/security/sig/rsa/EMSA_PSS.java
index 917d96323..7a8e591a3 100644
--- a/gnu/java/security/sig/rsa/EMSA_PSS.java
+++ b/gnu/java/security/sig/rsa/EMSA_PSS.java
@@ -1,5 +1,5 @@
 /* EMSA_PSS.java --
-   Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2006, 2010 Free Software Foundation, Inc.
 
 This file is a part of GNU Classpath.
 
@@ -73,7 +73,8 @@ import java.util.logging.Logger;
 public class EMSA_PSS
     implements Cloneable
 {
-  private static final Logger log = Logger.getLogger(EMSA_PSS.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                        Logger.getLogger(EMSA_PSS.class.getName()) : null;
 
   /** The underlying hash function to use with this instance. */
   private IMessageDigest hash;
diff --git a/gnu/java/security/sig/rsa/RSAPSSSignature.java b/gnu/java/security/sig/rsa/RSAPSSSignature.java
index d8f8327f1..7b042f77f 100644
--- a/gnu/java/security/sig/rsa/RSAPSSSignature.java
+++ b/gnu/java/security/sig/rsa/RSAPSSSignature.java
@@ -1,5 +1,5 @@
 /* RSAPSSSignature.java --
-   Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2006, 2010 Free Software Foundation, Inc.
 
 This file is a part of GNU Classpath.
 
@@ -75,7 +75,8 @@ import java.util.logging.Logger;
 public class RSAPSSSignature
     extends BaseSignature
 {
-  private static final Logger log = Logger.getLogger(RSAPSSSignature.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                Logger.getLogger(RSAPSSSignature.class.getName()) : null;
 
   /** The underlying EMSA-PSS instance for this object. */
   private EMSA_PSS pss;
diff --git a/gnu/java/security/x509/X509CRL.java b/gnu/java/security/x509/X509CRL.java
index 7c471c972..518edaa24 100644
--- a/gnu/java/security/x509/X509CRL.java
+++ b/gnu/java/security/x509/X509CRL.java
@@ -1,5 +1,5 @@
 /* X509CRL.java -- X.509 certificate revocation list.
-   Copyright (C) 2003, 2004  Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -77,7 +77,9 @@ import javax.security.auth.x500.X500Principal;
 public class X509CRL extends java.security.cert.X509CRL
   implements GnuPKIExtension
 {
-  private static final Logger log = Logger.getLogger(X509CRL.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                        Logger.getLogger(X509CRL.class.getName()) : null;
+
   private static final OID ID_DSA = new OID("1.2.840.10040.4.1");
   private static final OID ID_DSA_WITH_SHA1 = new OID("1.2.840.10040.4.3");
   private static final OID ID_RSA = new OID("1.2.840.113549.1.1.1");
diff --git a/gnu/java/security/x509/X509CRLEntry.java b/gnu/java/security/x509/X509CRLEntry.java
index 26b40363c..64adf7f69 100644
--- a/gnu/java/security/x509/X509CRLEntry.java
+++ b/gnu/java/security/x509/X509CRLEntry.java
@@ -1,5 +1,5 @@
 /* X509CRLEntry.java -- an entry in a X.509 CRL.
-   Copyright (C) 2003, 2004  Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -65,7 +65,9 @@ import java.util.logging.Logger;
 class X509CRLEntry extends java.security.cert.X509CRLEntry
   implements GnuPKIExtension
 {
-  private static final Logger log = Logger.getLogger(X509CRLEntry.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                        Logger.getLogger(X509CRLEntry.class.getName()) : null;
+
   /** The DER encoded form of this CRL entry. */
   private byte[] encoded;
 
diff --git a/gnu/java/security/x509/ext/Extension.java b/gnu/java/security/x509/ext/Extension.java
index 2b7e96d5a..b740c8ac4 100644
--- a/gnu/java/security/x509/ext/Extension.java
+++ b/gnu/java/security/x509/ext/Extension.java
@@ -1,5 +1,5 @@
 /* Extension.java -- an X.509 certificate or CRL extension.
-   Copyright (C) 2004, 2006  Free Software Foundation, Inc.
+   Copyright (C) 2004, 2006, 2010  Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -53,7 +53,8 @@ import java.util.logging.Logger;
 
 public class Extension
 {
-  private static final Logger log = Logger.getLogger(Extension.class.getName());
+  private static final Logger log = Configuration.DEBUG ?
+                        Logger.getLogger(Extension.class.getName()) : null;
   /**
    * This extension's object identifier.
    */