client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/ExtensionLoader.java [219:247]:
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    private String getJarDirectoryPath() {
        URL url = Thread.currentThread().getContextClassLoader().getResource("");
        String dirtyPath;
        if (url != null) {
            dirtyPath = url.toString();
        } else {
            File file = new File("");
            dirtyPath = file.getAbsolutePath();
        }
        String jarPath = dirtyPath.replaceAll("^.*file:/", ""); // removes
                                                                // file:/ and
                                                                // everything
                                                                // before it
        jarPath = jarPath.replaceAll("jar!.*", "jar"); // removes everything
                                                       // after .jar, if .jar
                                                       // exists in dirtyPath
        jarPath = jarPath.replaceAll("%20", " "); // necessary if path has
                                                  // spaces within
        if (!jarPath.endsWith(".jar")) { // this is needed if you plan to run
                                         // the app using Spring Tools Suit play
                                         // button.
            jarPath = jarPath.replaceAll("/classes/.*", "/classes/");
        }
        Path path = Paths.get(jarPath).getParent(); // Paths - from java 8
        if (path != null) {
            return path.toString();
        }
        return null;
    }
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connector/core/src/main/java/com/alibaba/otter/canal/connector/core/spi/ExtensionLoader.java [220:248]:
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    private String getJarDirectoryPath() {
        URL url = Thread.currentThread().getContextClassLoader().getResource("");
        String dirtyPath;
        if (url != null) {
            dirtyPath = url.toString();
        } else {
            File file = new File("");
            dirtyPath = file.getAbsolutePath();
        }
        String jarPath = dirtyPath.replaceAll("^.*file:/", ""); // removes
                                                                // file:/ and
                                                                // everything
                                                                // before it
        jarPath = jarPath.replaceAll("jar!.*", "jar"); // removes everything
                                                       // after .jar, if .jar
                                                       // exists in dirtyPath
        jarPath = jarPath.replaceAll("%20", " "); // necessary if path has
                                                  // spaces within
        if (!jarPath.endsWith(".jar")) { // this is needed if you plan to run
                                         // the app using Spring Tools Suit play
                                         // button.
            jarPath = jarPath.replaceAll("/classes/.*", "/classes/");
        }
        Path path = Paths.get(jarPath).getParent(); // Paths - from java 8
        if (path != null) {
            return path.toString();
        }
        return null;
    }
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