/*
    * Copyright (C) 2011 the original author or authors.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.codehaus.gmavenplus.mojo;
  
  import org.apache.maven.plugins.annotations.Parameter;
  import org.codehaus.gmavenplus.model.IncludeClasspath;
  import org.codehaus.gmavenplus.model.internal.Version;
  
  import java.io.File;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.net.MalformedURLException;
  import java.security.CodeSource;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import static org.codehaus.gmavenplus.util.ReflectionUtils.findConstructor;
  import static org.codehaus.gmavenplus.util.ReflectionUtils.findMethod;
  import static org.codehaus.gmavenplus.util.ReflectionUtils.invokeConstructor;
  import static org.codehaus.gmavenplus.util.ReflectionUtils.invokeMethod;
  
  
  /**
   * The base compile mojo, which all compile mojos extend.
   *
   * @author Keegan Witt
   * @since 1.0-beta-1
   */
  public abstract class AbstractCompileMojo extends AbstractGroovySourcesMojo {
  
      /**
       * Groovy 5.0.0-alpha-1 version.
       */
      protected static final Version GROOVY_5_0_0_ALPHA1 = new Version(5, 0, 0, "alpha-1");
  
      /**
       * Groovy 4.0.11 version.
       */
      protected static final Version GROOVY_4_0_21 = new Version(4, 0, 21);
  
      /**
       * Groovy 4.0.11 version.
       */
      protected static final Version GROOVY_4_0_16 = new Version(4, 0, 16);
  
      /**
       * Groovy 4.0.11 version.
       */
      protected static final Version GROOVY_4_0_11 = new Version(4, 0, 11);
  
      /**
       * Groovy 4.0.6 version.
       */
      protected static final Version GROOVY_4_0_6 = new Version(4, 0, 6);
  
      /**
       * Groovy 4.0.2 version.
       */
      protected static final Version GROOVY_4_0_2 = new Version(4, 0, 2);
  
      /**
       * Groovy 4.0.0 beta-1 version.
       */
      protected static final Version GROOVY_4_0_0_BETA1 = new Version(4, 0, 0, "beta-1");
  
      /**
       * Groovy 4.0.0 alpha-3 version.
       */
      protected static final Version GROOVY_4_0_0_ALPHA3 = new Version(4, 0, 0, "alpha-3");
  
      /**
       * Groovy 4.0.0 alpha-1 version.
       */
      protected static final Version GROOVY_4_0_0_ALPHA1 = new Version(4, 0, 0, "alpha-1");
  
      /**
       * Groovy 3.0.8 version.
       */
      protected static final Version GROOVY_3_0_8 = new Version(3, 0, 8);
  
      /**
       * Groovy 3.0.6 version.
       */
     protected static final Version GROOVY_3_0_6 = new Version(3, 0, 6);
 
     /**
      * Groovy 3.0.5 version.
      */
     protected static final Version GROOVY_3_0_5 = new Version(3, 0, 5);
 
     /**
      * Groovy 3.0.3 version.
      */
     protected static final Version GROOVY_3_0_3 = new Version(3, 0, 3);
 
     /**
      * Groovy 3.0.0 beta-2 version.
      */
     protected static final Version GROOVY_3_0_0_BETA2 = new Version(3, 0, 0, "beta-2");
 
     /**
      * Groovy 3.0.0 beta-1 version.
      */
     protected static final Version GROOVY_3_0_0_BETA1 = new Version(3, 0, 0, "beta-1");
 
     /**
      * Groovy 3.0.0 alpha-4 version.
      */
     protected static final Version GROOVY_3_0_0_ALPHA4 = new Version(3, 0, 0, "alpha-4");
 
     /**
      * Groovy 3.0.0 alpha-2 version.
      */
     protected static final Version GROOVY_3_0_0_ALPHA2 = new Version(3, 0, 0, "alpha-2");
 
     /**
      * Groovy 3.0.0 alpha-1 version.
      */
     protected static final Version GROOVY_3_0_0_ALPHA1 = new Version(3, 0, 0, "alpha-1");
 
     /**
      * Groovy 2.6.0 alpha-4 version.
      */
     protected static final Version GROOVY_2_6_0_ALPHA4 = new Version(2, 6, 0, "alpha-4");
 
     /**
      * Groovy 2.6.0 alpha-1 version.
      */
     protected static final Version GROOVY_2_6_0_ALPHA1 = new Version(2, 6, 0, "alpha-1");
 
     /**
      * Groovy 2.5.7 version.
      */
     protected static final Version GROOVY_2_5_7 = new Version(2, 5, 7);
 
     /**
      * Groovy 2.5.3 version.
      */
     protected static final Version GROOVY_2_5_3 = new Version(2, 5, 3);
 
     /**
      * Groovy 2.5.0 alpha-1 version.
      */
     protected static final Version GROOVY_2_5_0_ALPHA1 = new Version(2, 5, 0, "alpha-1");
 
     /**
      * Groovy 2.3.3 version.
      */
     protected static final Version GROOVY_2_3_3 = new Version(2, 3, 3);
 
     /**
      * Groovy 2.1.3 version.
      */
     protected static final Version GROOVY_2_1_3 = new Version(2, 1, 3);
 
     /**
      * Groovy 2.1.0 beta-1 version.
      */
     protected static final Version GROOVY_2_1_0_BETA1 = new Version(2, 1, 0, "beta-1");
 
     /**
      * Groovy 2.0.0 beta-3 version.
      */
     protected static final Version GROOVY_2_0_0_BETA3 = new Version(2, 0, 0, "beta-3");
 
     /**
      * Groovy 1.6.0 version.
      */
     protected static final Version GROOVY_1_6_0 = new Version(1, 6, 0);
 
     /**
      * The encoding of source files.
      */
     @Parameter(defaultValue = "${project.build.sourceEncoding}")
     protected String sourceEncoding;
 
     /**
      * The Groovy compiler bytecode compatibility. One of
      * <ul>
      *   <li>1.4 (or 4)</li>
      *   <li>1.5 (or 5)</li>
      *   <li>1.6 (or 6)</li>
      *   <li>1.7 (or 7)</li>
      *   <li>1.8 (or 8)</li>
      *   <li>9 (or 1.9)</li>
      *   <li>10</li>
      *   <li>11</li>
      *   <li>12</li>
      *   <li>13</li>
      *   <li>14</li>
      *   <li>15</li>
      *   <li>16</li>
      *   <li>17</li>
      *   <li>18</li>
      *   <li>19</li>
      *   <li>20</li>
      *   <li>21</li>
      *   <li>22</li>
      *   <li>23</li>
      * </ul>
      * Using 1.6 (or 6) or 1.7 (or 7) requires Groovy &gt;= 2.1.3.
      * Using 1.8 (or 8) requires Groovy &gt;= 2.3.3.
      * Using 9 (or 1.9) requires Groovy &gt;= 2.5.3, or Groovy &gt;= 2.6.0 alpha 4, or Groovy &gt;= 3.0.0 alpha 2.
      * Using 9 (or 1.9) with invokedynamic requires Groovy &gt;= 2.5.3, or Groovy &gt;= 3.0.0 alpha 2, but not any 2.6 versions.
      * Using 10, 11, or 12 requires Groovy &gt;= 2.5.3, or Groovy &gt;= 3.0.0 alpha 4, but not any 2.6 versions.
      * Using 13 requires Groovy &gt;= 2.5.7, or Groovy &gt;= 3.0.0-beta-1, but not any 2.6 versions.
      * Using 14 requires Groovy &gt;= 3.0.0 beta-2.
      * Using 15 requires Groovy &gt;= 3.0.3.
      * Using 16 requires Groovy &gt;= 3.0.6.
      * Using 17 requires Groovy &gt;= 3.0.8 or Groovy &gt; 4.0.0-alpha-3.
      * Using 18 requires Groovy &gt; 4.0.0-beta-1.
      * Using 19 requires Groovy &gt; 4.0.2.
      * Using 20 requires Groovy &gt; 4.0.6.
      * Using 21 requires Groovy &gt; 4.0.11.
      * Using 22 requires Groovy &gt; 4.0.16.
      * Using 23 requires Groovy &gt; 4.0.21.
      */
     @Parameter(property = "maven.compiler.target", defaultValue = "1.8")
     protected String targetBytecode;
 
     /**
      * Whether to check that the version of Groovy used is able to use the requested <code>targetBytecode</code>.
      *
      * @since 1.9.0
      */
     @Parameter(property = "skipBytecodeCheck", defaultValue = "false")
     protected boolean skipBytecodeCheck;
 
     /**
      * Whether Groovy compiler should be set to debug.
      */
     @Parameter(defaultValue = "false")
     protected boolean debug;
 
     /**
      * Whether Groovy compiler should be set to verbose.
      */
     @Parameter(defaultValue = "false")
     protected boolean verbose;
 
     /**
      * Groovy compiler warning level. Should be one of:
      * <dl>
      *   <dt>0</dt>
      *     <dd>None</dd>
      *   <dt>1</dt>
      *     <dd>Likely Errors</dd>
      *   <dt>2</dt>
      *     <dd>Possible Errors</dd>
      *   <dt>3</dt>
      *     <dd>Paranoia</dd>
      * </dl>
      */
     @Parameter(defaultValue = "1")
     protected int warningLevel;
 
     /**
      * Groovy compiler error tolerance (the number of non-fatal errors (per unit) that should be tolerated before compilation is aborted).
      */
     @Parameter(defaultValue = "0")
     protected int tolerance;
 
     /**
      * Whether to support invokeDynamic (requires Java 7 or greater and Groovy indy 2.0.0-beta-3 or greater).
      * Has no effect for Groovy 4, as it is always enabled.
      */
     @Parameter(defaultValue = "false")
     protected boolean invokeDynamic;
 
     /**
      * Whether to enable Groovy's parallel parsing. Requires Groovy 3.0.5.
      * Is enabled by default for Groovy 4.0.0-alpha-1 or newer.
      *
      * @since 1.11.0
      */
     @Parameter
     protected Boolean parallelParsing = null;
 
     /**
      * A <a href="http://groovy-lang.org/dsls.html#compilation-customizers">script</a> for tweaking the configuration options
      * (requires Groovy 2.1.0-beta-1 or greater). Note that its encoding must match your source encoding.
      */
     @Parameter
     protected File configScript;
 
     /**
      * Generate metadata for reflection on method parameter names using the functionality provided by JEP 118
      * (requires Java 8 or greater and Groovy 2.5.0-alpha-1 or greater).
      */
     @Parameter(defaultValue = "false")
     protected boolean parameters;
 
     /**
      * What classpath to include. One of
      * <ul>
      *   <li>PROJECT_ONLY</li>
      *   <li>PROJECT_AND_PLUGIN</li>
      *   <li>PLUGIN_ONLY</li>
      * </ul>
      * Uses the same scope as the required dependency resolution of this mojo. Use only if you know what you're doing.
      *
      * @since 1.8.0
      */
     @Parameter(defaultValue = "PROJECT_ONLY")
     protected IncludeClasspath includeClasspath;
 
     /**
      * Whether the bytecode version has preview features enabled (JEP 12).
      * Requires Groovy &gt;= 3.0.0-beta-1 or Groovy &gt;= 2.5.7, but not any 2.6 versions and Java &gt;= 12.
      *
      * @since 1.7.1
      */
     @Parameter(defaultValue = "false")
     protected boolean previewFeatures;
 
     /**
      * Performs compilation of compile mojos.
      *
      * @param sources                the sources to compile
      * @param classpath              the classpath to use for compilation
      * @param compileOutputDirectory the directory to write the compiled class files to
      * @throws ClassNotFoundException    when a class needed for compilation cannot be found
      * @throws InstantiationException    when a class needed for compilation cannot be instantiated
      * @throws IllegalAccessException    when a method needed for compilation cannot be accessed
      * @throws InvocationTargetException when a reflection invocation needed for compilation cannot be completed
      * @throws MalformedURLException     when a classpath element provides a malformed URL
      */
     @SuppressWarnings({"rawtypes"})
     protected synchronized void doCompile(final Set<File> sources, final List classpath, final File compileOutputDirectory)
             throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException, MalformedURLException {
         if (sources == null || sources.isEmpty()) {
             getLog().info("No sources specified for compilation. Skipping.");
             return;
         }
 
         setupClassWrangler(classpath, includeClasspath);
 
         logPluginClasspath();
         classWrangler.logGroovyVersion(mojoExecution.getMojoDescriptor().getGoal());
 
         if (!groovyVersionSupportsAction()) {
             getLog().error("Your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support compilation. The minimum version of Groovy required is " + minGroovyVersion + ". Skipping compiling.");
             return;
         }
 
         if (!skipBytecodeCheck) {
             verifyGroovyVersionSupportsTargetBytecode();
         }
 
         // get classes we need with reflection
         Class<?> compilerConfigurationClass = classWrangler.getClass("org.codehaus.groovy.control.CompilerConfiguration");
         Class<?> compilationUnitClass = classWrangler.getClass("org.codehaus.groovy.control.CompilationUnit");
         Class<?> groovyClassLoaderClass = classWrangler.getClass("groovy.lang.GroovyClassLoader");
 
         // setup compile options
         Object compilerConfiguration = setupCompilerConfiguration(compileOutputDirectory, compilerConfigurationClass);
         Object groovyClassLoader = invokeConstructor(findConstructor(groovyClassLoaderClass, ClassLoader.class, compilerConfigurationClass), classWrangler.getClassLoader(), compilerConfiguration);
         Object transformLoader = invokeConstructor(findConstructor(groovyClassLoaderClass, ClassLoader.class), classWrangler.getClassLoader());
 
         // add Groovy sources
         Object compilationUnit = setupCompilationUnit(sources, compilerConfigurationClass, compilationUnitClass, groovyClassLoaderClass, compilerConfiguration, groovyClassLoader, transformLoader);
 
         // compile the classes
         invokeMethod(findMethod(compilationUnitClass, "compile"), compilationUnit);
 
         // log compiled classes
         List classes = (List) invokeMethod(findMethod(compilationUnitClass, "getClasses"), compilationUnit);
         getLog().info("Compiled " + classes.size() + " file" + (classes.size() != 1 ? "s" : "") + ".");
     }
 
     /**
      * Sets up the CompilationUnit to use for compilation.
      *
      * @param sources                    the sources to compile
      * @param compilerConfigurationClass the CompilerConfiguration class
      * @param compilationUnitClass       the CompilationUnit class
      * @param groovyClassLoaderClass     the GroovyClassLoader class
      * @param compilerConfiguration      the CompilerConfiguration
      * @param groovyClassLoader          the GroovyClassLoader
      * @param transformLoader            the GroovyClassLoader to use for transformation
      * @return the CompilationUnit
      * @throws InstantiationException    when a class needed for setting up compilation unit cannot be instantiated
      * @throws IllegalAccessException    when a method needed for setting up compilation unit cannot be accessed
      * @throws InvocationTargetException when a reflection invocation needed for setting up compilation unit cannot be completed
      */
     protected Object setupCompilationUnit(final Set<File> sources, final Class<?> compilerConfigurationClass, final Class<?> compilationUnitClass, final Class<?> groovyClassLoaderClass, final Object compilerConfiguration, final Object groovyClassLoader, final Object transformLoader) throws InvocationTargetException, IllegalAccessException, InstantiationException {
         Object compilationUnit;
         if (groovyAtLeast(GROOVY_1_6_0)) {
             compilationUnit = invokeConstructor(findConstructor(compilationUnitClass, compilerConfigurationClass, CodeSource.class, groovyClassLoaderClass, groovyClassLoaderClass), compilerConfiguration, null, groovyClassLoader, transformLoader);
         } else {
             compilationUnit = invokeConstructor(findConstructor(compilationUnitClass, compilerConfigurationClass, CodeSource.class, groovyClassLoaderClass), compilerConfiguration, null, groovyClassLoader);
         }
         getLog().debug("Adding Groovy to compile:");
         Method addSourceMethod = findMethod(compilationUnitClass, "addSource", File.class);
         for (File source : sources) {
             getLog().debug("    " + source);
             invokeMethod(addSourceMethod, compilationUnit, source);
         }
 
         return compilationUnit;
     }
 
     /**
      * Sets up the CompilationConfiguration to use for compilation.
      *
      * @param compileOutputDirectory     the directory to write the compiled classes to
      * @param compilerConfigurationClass the CompilerConfiguration class
      * @return the CompilerConfiguration
      * @throws ClassNotFoundException    when a class needed for setting up CompilerConfiguration cannot be found
      * @throws InstantiationException    when a class needed for setting up CompilerConfiguration cannot be instantiated
      * @throws IllegalAccessException    when a method needed for setting up CompilerConfiguration cannot be accessed
      * @throws InvocationTargetException when a reflection invocation needed for setting up CompilerConfiguration cannot be completed
      */
     @SuppressWarnings({"rawtypes", "unchecked"})
     protected Object setupCompilerConfiguration(final File compileOutputDirectory, final Class<?> compilerConfigurationClass) throws InvocationTargetException, IllegalAccessException, InstantiationException, ClassNotFoundException {
         Object compilerConfiguration = invokeConstructor(findConstructor(compilerConfigurationClass));
         if (configScript != null) {
             if (!configScript.exists()) {
                 getLog().warn("Configuration script file (" + configScript.getAbsolutePath() + ") doesn't exist. Ignoring configScript parameter.");
             } else if (groovyOlderThan(GROOVY_2_1_0_BETA1)) {
                 getLog().warn("Requested to use configScript, but your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support it (must be " + GROOVY_2_1_0_BETA1 + " or newer). Ignoring configScript parameter.");
             } else {
                 Class<?> bindingClass = classWrangler.getClass("groovy.lang.Binding");
                 Class<?> importCustomizerClass = classWrangler.getClass("org.codehaus.groovy.control.customizers.ImportCustomizer");
                 Class<?> groovyShellClass = classWrangler.getClass("groovy.lang.GroovyShell");
 
                 Object binding = invokeConstructor(findConstructor(bindingClass));
                 invokeMethod(findMethod(bindingClass, "setVariable", String.class, Object.class), binding, "configuration", compilerConfiguration);
                 Object shellCompilerConfiguration = invokeConstructor(findConstructor(compilerConfigurationClass));
                 Object importCustomizer = invokeConstructor(findConstructor(importCustomizerClass));
                 invokeMethod(findMethod(importCustomizerClass, "addStaticStar", String.class), importCustomizer, "org.codehaus.groovy.control.customizers.builder.CompilerCustomizationBuilder");
                 List compilationCustomizers = (List) invokeMethod(findMethod(compilerConfigurationClass, "getCompilationCustomizers"), shellCompilerConfiguration);
                 compilationCustomizers.add(importCustomizer);
                 Object shell = invokeConstructor(findConstructor(groovyShellClass, ClassLoader.class, bindingClass, compilerConfigurationClass), classWrangler.getClassLoader(), binding, shellCompilerConfiguration);
                 getLog().debug("Using configuration script " + configScript + " for compilation.");
                 invokeMethod(findMethod(groovyShellClass, "evaluate", File.class), shell, configScript);
             }
         }
         invokeMethod(findMethod(compilerConfigurationClass, "setDebug", boolean.class), compilerConfiguration, debug);
         invokeMethod(findMethod(compilerConfigurationClass, "setVerbose", boolean.class), compilerConfiguration, verbose);
         invokeMethod(findMethod(compilerConfigurationClass, "setWarningLevel", int.class), compilerConfiguration, warningLevel);
         invokeMethod(findMethod(compilerConfigurationClass, "setTolerance", int.class), compilerConfiguration, tolerance);
         invokeMethod(findMethod(compilerConfigurationClass, "setTargetBytecode", String.class), compilerConfiguration, translateJavacTargetToTargetBytecode(targetBytecode));
         if (previewFeatures) {
             if (isJavaSupportPreviewFeatures()) {
                 if (groovyOlderThan(GROOVY_2_5_7) || (groovyAtLeast(GROOVY_2_6_0_ALPHA1) && groovyOlderThan(GROOVY_3_0_0_BETA1))) {
                     getLog().warn("Requested to use preview features, but your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support it (must be " + GROOVY_2_5_7 + "/" + GROOVY_3_0_0_BETA1 + " or newer. No 2.6 version is supported. Ignoring previewFeatures parameter.");
                 } else {
                     invokeMethod(findMethod(compilerConfigurationClass, "setPreviewFeatures", boolean.class), compilerConfiguration, previewFeatures);
                 }
             } else {
                 getLog().warn("Requested to use to use preview features, but your Java version (" + getJavaVersionString() + ") doesn't support it. Ignoring previewFeatures parameter.");
             }
         }
         if (sourceEncoding != null) {
             invokeMethod(findMethod(compilerConfigurationClass, "setSourceEncoding", String.class), compilerConfiguration, sourceEncoding);
         }
         invokeMethod(findMethod(compilerConfigurationClass, "setTargetDirectory", String.class), compilerConfiguration, compileOutputDirectory.getAbsolutePath());
         if (invokeDynamic || groovyAtLeast(GROOVY_4_0_0_ALPHA1)) {
             if (groovyAtLeast(GROOVY_2_0_0_BETA3)) {
                 if (classWrangler.isGroovyIndy()) {
                     if (isJavaSupportIndy()) {
                         Map<String, Boolean> optimizationOptions = (Map<String, Boolean>) invokeMethod(findMethod(compilerConfigurationClass, "getOptimizationOptions"), compilerConfiguration);
                         optimizationOptions.put("indy", true);
                         optimizationOptions.put("int", false);
                         getLog().info("invokedynamic enabled.");
                     } else {
                         getLog().warn("Requested to use to use invokedynamic, but your Java version (" + getJavaVersionString() + ") doesn't support it. Ignoring invokeDynamic parameter.");
                     }
                 } else {
                     getLog().warn("Requested to use invokedynamic, but your Groovy version doesn't support it (must use have indy classifier). Ignoring invokeDynamic parameter.");
                 }
             } else {
                 getLog().warn("Requested to use invokeDynamic, but your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support it (must be " + GROOVY_2_0_0_BETA3 + " or newer). Ignoring invokeDynamic parameter.");
             }
         }
         if (parameters) {
             if (groovyAtLeast(GROOVY_2_5_0_ALPHA1)) {
                 if (isJavaSupportParameters()) {
                     invokeMethod(findMethod(compilerConfigurationClass, "setParameters", boolean.class), compilerConfiguration, parameters);
                 } else {
                     getLog().warn("Requested to use to use parameters, but your Java version (" + getJavaVersionString() + ") doesn't support it. Ignoring parameters parameter.");
                 }
             } else {
                 getLog().warn("Requested to use parameters, but your Groovy version (" + classWrangler.getGroovyVersionString() + ") doesn't support it (must be " + GROOVY_2_5_0_ALPHA1 + " or newer). Ignoring parameters parameter.");
             }
         }
         if (groovyAtLeast(GROOVY_3_0_5)) {
             if ((parallelParsing == null && groovyAtLeast(GROOVY_4_0_0_ALPHA1)) || (parallelParsing != null && parallelParsing)) {
                 Map<String, Boolean> optimizationOptions = (Map<String, Boolean>) invokeMethod(findMethod(compilerConfigurationClass, "getOptimizationOptions"), compilerConfiguration);
                 optimizationOptions.put("parallelParse", true);
                 getLog().info("Parallel parsing enabled.");
             } else {
                 getLog().info("Parallel parsing disabled.");
             }
         }
 
         return compilerConfiguration;
     }
 
     /**
      * Throws an exception if targetBytecode is not supported with this version of Groovy. That is, when Groovy added
      * the option to org.codehaus.groovy.control.CompilerConfiguration and used it in
      * org.codehaus.groovy.classgen.asm.WriterController.
      */
     protected void verifyGroovyVersionSupportsTargetBytecode() {
         if ("1.5".equals(targetBytecode) || "5".equals(targetBytecode) || "1.6".equals(targetBytecode) || "6".equals(targetBytecode) || "1.7".equals(targetBytecode) || "7".equals(targetBytecode) || "1.8".equals(targetBytecode) || "8".equals(targetBytecode) || "1.9".equals(targetBytecode) || "9".equals(targetBytecode) || "10".equals(targetBytecode)) {
             if (groovyNewerThan(GROOVY_5_0_0_ALPHA1)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " isn't accepted by Groovy " + GROOVY_5_0_0_ALPHA1 + " or newer.");
             }
         }
 
         if ("23".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_21)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_21 + " or newer.");
             }
         } else if ("22".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_16)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_16 + " or newer.");
             }
         } else if ("21".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_11)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_11 + " or newer.");
             }
         } else if ("20".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_6)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_6 + " or newer.");
             }
         } else if ("19".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_2)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_2 + " or newer.");
             }
         } else if ("18".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_4_0_0_BETA1)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_4_0_0_BETA1 + " or newer.");
             }
         } else if ("17".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_3_0_8) || (groovyAtLeast(GROOVY_4_0_0_ALPHA1) && groovyOlderThan(GROOVY_4_0_0_ALPHA3))) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_3_0_8 + "/" + GROOVY_4_0_0_ALPHA3 + " or newer.");
             }
         } else if ("16".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_3_0_6)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_3_0_6 + " or newer.");
             }
         } else if ("15".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_3_0_3)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_3_0_3 + " or newer.");
             }
         } else if ("14".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_3_0_0_BETA2)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_3_0_0_BETA2 + " or newer.");
             }
         } else if ("13".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_2_5_7) || (groovyAtLeast(GROOVY_2_6_0_ALPHA1) && groovyOlderThan(GROOVY_3_0_0_BETA1))) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_2_5_7 + "/" + GROOVY_3_0_0_BETA1 + " or newer. No 2.6 version is supported.");
             }
         } else if ("12".equals(targetBytecode) || "11".equals(targetBytecode) || "10".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_2_5_3) || (groovyAtLeast(GROOVY_2_6_0_ALPHA1) && groovyOlderThan(GROOVY_3_0_0_ALPHA4))) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_2_5_3 + "/" + GROOVY_3_0_0_ALPHA4 + " or newer. No 2.6 version is supported.");
             }
         } else if ("9".equals(targetBytecode) || "1.9".equals(targetBytecode)) {
             if (!isGroovyIndy() && (groovyOlderThan(GROOVY_2_5_3)
                     || (groovyAtLeast(GROOVY_2_6_0_ALPHA1) && groovyOlderThan(GROOVY_2_6_0_ALPHA4))
                     || (groovyAtLeast(GROOVY_3_0_0_ALPHA1) && groovyOlderThan(GROOVY_3_0_0_ALPHA2)))) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_2_5_3 + "/" + GROOVY_2_6_0_ALPHA4 + "/" + GROOVY_3_0_0_ALPHA2 + " or newer.");
             } else if (isGroovyIndy() && (groovyOlderThan(GROOVY_2_5_3) || (groovyAtLeast(GROOVY_2_6_0_ALPHA1) && groovyOlderThan(GROOVY_3_0_0_ALPHA4)))) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_2_5_3 + "/" + GROOVY_3_0_0_ALPHA4 + " or newer. No 2.6 version is supported.");
             }
         } else if ("8".equals(targetBytecode) || "1.8".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_2_3_3)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_2_3_3 + " or newer.");
             }
         } else if ("7".equals(targetBytecode) || "1.7".equals(targetBytecode) || "6".equals(targetBytecode) || "1.6".equals(targetBytecode)) {
             if (groovyOlderThan(GROOVY_2_1_3)) {
                 throw new IllegalArgumentException("Target bytecode " + targetBytecode + " requires Groovy " + GROOVY_2_1_3 + " or newer.");
             }
         } else if (!"5".equals(targetBytecode) && !"1.5".equals(targetBytecode) && !"4".equals(targetBytecode) && !"1.4".equals(targetBytecode)) {
             throw new IllegalArgumentException("Unrecognized target bytecode: '" + targetBytecode + "'. This check can be skipped with 'skipBytecodeCheck', but this may result in a different target bytecode being used.");
         }
     }
 
     protected static String translateJavacTargetToTargetBytecode(String targetBytecode) {
         Map<String, String> javacTargetToTargetBytecode = new HashMap<>();
         javacTargetToTargetBytecode.put("5", "1.5");
         javacTargetToTargetBytecode.put("6", "1.6");
         javacTargetToTargetBytecode.put("7", "1.7");
         javacTargetToTargetBytecode.put("8", "1.8");
         javacTargetToTargetBytecode.put("1.9", "9");
         return javacTargetToTargetBytecode.getOrDefault(targetBytecode, targetBytecode);
     }
 
 }