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diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/utils/ErrorLogger.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/utils/ErrorLogger.java
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+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/utils/ErrorLogger.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.common.utils;
+
+import java.util.Properties;
+
+import org.apache.log4j.Logger;
+
+/*
+ * 
+ * @deprecated in favor of org.simantics.db.common.Logger. Will be removed in Simantics 1.2
+ * 
+ */
+@Deprecated
+public class ErrorLogger {
+    public static final boolean ECHO = false;
+    public static final Properties defaultProperties = new Properties();
+    static {
+        defaultProperties.put("log4j.rootCategory", "ERROR, default");
+        defaultProperties.put("log4j.appender.default", "org.apache.log4j.FileAppender");
+        defaultProperties.put("log4j.appender.default.File", "db-client-deprecated.log");
+        defaultProperties.put("log4j.appender.default.append", "false");
+        defaultProperties.put("log4j.appender.default.layout", "org.apache.log4j.PatternLayout");
+        defaultProperties.put("log4j.appender.default.layout.ConversionPattern", "%-6r [%15.15t] %-5p %30.30c - %m%n");
+    }
+    private static LogManager defaultLogManager = new LogManager(defaultProperties);
+    private static final ErrorLogger defaultErrorLogger = new ErrorLogger(LogManager.class);
+    private Logger logger;
+    ErrorLogger(Class<?> clazz) {
+    	logger = defaultLogManager.getLogger(clazz);
+    }
+
+    /**
+     * Log a trace event.
+     * 
+     * @param message message of the trace
+     * @param exception the exception, or <code>null</code>
+     */
+    public void logTrace(String message, Throwable exception) {
+        // Errors are much more useful with a stack trace!
+        if (exception == null) {
+            exception = new RuntimeException();
+        }
+        logger.trace(message, exception);
+    }
+
+    /**
+     * Log an info event.
+     * 
+     * @param message message of the info
+     * @param exception the exception, or <code>null</code>
+     */
+    public void logInfo(String message, Throwable exception) {
+        // Errors are much more useful with a stack trace!
+        if (exception == null) {
+            exception = new RuntimeException();
+        }
+        logger.info(message, exception);
+    }
+
+    /**
+     * Log an error event.
+     * 
+     * @param message message of the error
+     * @param exception the exception, or <code>null</code>
+     */
+    public void logError(String message, Throwable exception) {
+        // Errors are much more useful with a stack trace!
+        if (exception == null) {
+            exception = new RuntimeException();
+        }
+        logger.error(message, exception);
+    }
+
+    public static ErrorLogger getDefault() {
+        return defaultErrorLogger;
+    }
+    
+    public static LogManager getDefaultLogManager() {
+        return defaultLogManager;
+    }
+    public static void defaultLogError(Throwable exception) {
+        getDefault().logError(exception.getLocalizedMessage(), exception);
+        if(ECHO) exception.printStackTrace();
+    }
+    public static void defaultLogError(String message) {
+        getDefault().logError(message, null);
+        if(ECHO)
+            System.err.println(message);
+    }
+    public static void defaultLogError(String message, Throwable exception) {
+        getDefault().logError(message, exception);
+        if(ECHO)
+            System.err.println(message);
+    }
+    public static void defaultLogInfo(String message) {
+        getDefault().logInfo(message, null);
+        if(ECHO)
+            System.err.println(message);
+    }
+    public static void defaultLogTrace(String message) {
+        getDefault().logTrace(message, null);
+        if(ECHO)
+            System.err.println(message);
+    }
+}