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The main purpose of this libraryis to modernize and maintain the slick2D library.

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package com.github.mathiewz.slick.util;

import java.security.AccessController;
import java.security.PrivilegedAction;

/**
 * A simple central logging system
 *
 * @author kevin
 */
public final class Log {
    /** True if we're doing verbose logging INFO and DEBUG */
    private static boolean verbose = true;
    /** true if activated by the system property "com.github.mathiewz.slick.forceVerboseLog" */
    private static boolean forcedVerbose = false;

    /**
     * The debug property which can be set via JNLP or startup parameter to switch
     * logging mode to verbose for games that were released without verbose logging
     * value must be "true"
     */
    private static final String FORCE_VERBOSE_PROPERTY = "com.github.mathiewz.slick.forceVerboseLog";

    /**
     * the verbose property must be set to "true" to switch on verbose logging
     */
    private static final String FORCE_VERBOSE_PROPERTY_ON_VALUE = "true";

    /** The log system plugin in use */
    private static LogSystem logSystem = new DefaultLogSystem();

    private Log() {
        // to avoid instantiation
    }

    /**
     * Indicate that we want verbose logging.
     * The call is ignored if verbose logging is forced by the system property
     * "com.github.mathiewz.slick.forceVerboseLog"
     *
     * @param v
     *            True if we want verbose logging (INFO and DEBUG)
     */
    public static void setVerbose(boolean v) {
        if (forcedVerbose) {
            return;
        }
        verbose = v;
    }

    /**
     * Check if the system property com.github.mathiewz.slick.verboseLog is set to true.
     * If this is the case we activate the verbose logging mode
     */
    public static void checkVerboseLogSetting() {
        try {
            PrivilegedAction