[Demonstration 1]

[Buggy Method]
public void close() {
    try {
        connection.close();
    } catch (SQLException e) {
    }
}

[Buggy Hunk]
catch (SQLException e) { }

[Patch]
catch (Exception e) { }

[Demonstration 2]

[Buggy Method]
public final Set<Class<? extends ParaObject>> getComponentClasses(String basePackage) {
    basePackage = (basePackage == null) ? "" : basePackage;
    Set<Class<? extends ParaObject>> classes = new HashSet<Class<? extends ParaObject>>();
    for (BeanDefinition candidate : findCandidateComponents(basePackage)) {
        try {
            Class<? extends ParaObject> cls = (Class<? extends ParaObject>) ClassUtils.resolveClassName(candidate.getBeanClassName(), Thread.currentThread().getContextClassLoader());
            classes.add(cls);
        } catch (Exception ex) {
            logger.error(null, ex);
        }
    }
    return classes;
}

[Buggy Hunk]
logger.error(null, ex);

[Patch]
LOG.error(null, ex);

[Demonstration 3]

[Buggy Method]
public void close() {
    if (devHandle != null) {
        LibUsb.releaseInterface(devHandle, 0);
        LibUsb.close(devHandle);
        devHandle = null;
    }
}

[Buggy Hunk]
public void close() {

[Patch]
public synchronized void close() {