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PMD is an extensible multilanguage static code analyzer. It finds common programming flaws like unused variables, empty catch blocks, unnecessary object creation, and so forth. It's mainly concerned with Java and Apex, but supports 16 other languages. It comes with 400+ built-in rules. It can be extended with custom rules. It uses JavaCC and Antlr to parse source files into abstract syntax trees (AST) and runs rules against them to find violations. Rules can be written in Java or using a XPath query. Currently, PMD supports Java, JavaScript, Salesforce.com Apex and Visualforce, Kotlin, Swift, Modelica, PLSQL, Apache Velocity, JSP, WSDL, Maven POM, HTML, XML and XSL. Scala is supported, but there are currently no Scala rules available. Additionally, it includes CPD, the copy-paste-detector. CPD finds duplicated code in Coco, C/C++, C#, Dart, Fortran, Gherkin, Go, Groovy, HTML, Java, JavaScript, JSP, Julia, Kotlin, Lua, Matlab, Modelica, Objective-C, Perl, PHP, PLSQL, Python, Ruby, Salesforce.com Apex and Visualforce, Scala, Swift, T-SQL, Typescript, Apache Velocity, WSDL, XML and XSL.

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/*
 * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
 */

package net.sourceforge.pmd.lang;

import java.util.List;

import net.sourceforge.pmd.annotation.InternalApi;
import net.sourceforge.pmd.cache.internal.AnalysisCache;
import net.sourceforge.pmd.lang.document.TextFile;
import net.sourceforge.pmd.lang.rule.internal.RuleSets;
import net.sourceforge.pmd.reporting.GlobalAnalysisListener;
import net.sourceforge.pmd.util.log.PmdReporter;

/**
 * Internal API.
 *
 * Acts as a bridge between outer parts of PMD and the restricted access
 * internal API of this package.
 *
 * None of this is published API, and compatibility can be broken anytime!
 * Use this only at your own risk.
 *
 * @apiNote Internal API
 */
@InternalApi
public final class InternalApiBridge {
    private InternalApiBridge() {}

    public static LanguageProcessor.AnalysisTask createAnalysisTask(RuleSets rulesets,
                                                                    List files,
                                                                    GlobalAnalysisListener listener,
                                                                    int threadCount,
                                                                    AnalysisCache analysisCache,
                                                                    PmdReporter messageReporter,
                                                                    LanguageProcessorRegistry lpRegistry) {
        return new LanguageProcessor.AnalysisTask(rulesets, files, listener, threadCount, analysisCache, messageReporter, lpRegistry);
    }

    public static LanguageProcessor.AnalysisTask taskWithFiles(LanguageProcessor.AnalysisTask originalTask, List newFiles) {
        return originalTask.withFiles(newFiles);
    }
}