content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one or more
   *  contributor license agreements.  See the NOTICE file distributed with
   *  this work for additional information regarding copyright ownership.
   *  The ASF licenses this file to You 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
   *
   *      https://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.apache.tools.ant.taskdefs.compilers;
  
  import java.io.OutputStream;
  import java.lang.reflect.Constructor;
  import java.lang.reflect.Method;
  
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.Project;
  import org.apache.tools.ant.taskdefs.LogOutputStream;
  import org.apache.tools.ant.types.Commandline;
  import org.apache.tools.ant.util.JavaEnvUtils;
  
  /**
   * The implementation of the javac compiler for JDK 1.2
   * This is primarily a cut-and-paste from the original javac task before it
   * was refactored.
   *
   * @since Ant 1.3
   * @deprecated Use {@link Javac13} instead.
   */
  @Deprecated
  public class Javac12 extends DefaultCompilerAdapter {
      protected static final String CLASSIC_COMPILER_CLASSNAME = "sun.tools.javac.Main";
  
      /**
       * Run the compilation.
       * @return true if the compiler ran with a zero exit result (ok)
       * @exception BuildException if the compilation has problems.
       */
      public boolean execute() throws BuildException {
          attributes.log("Using classic compiler", Project.MSG_VERBOSE);
          Commandline cmd = setupJavacCommand(true);
  
          try (OutputStream logstr = new LogOutputStream(attributes, Project.MSG_WARN)) {
              // Create an instance of the compiler, redirecting output to
              // the project log
              Class<?> c = Class.forName(CLASSIC_COMPILER_CLASSNAME);
              Constructor<?> cons = c.getConstructor(OutputStream.class, String.class);
              Object compiler = cons.newInstance(logstr, "javac");
  
              // Call the compile() method
              Method compile = c.getMethod("compile", String[].class);
              return (Boolean) compile.invoke(compiler, new Object[] {cmd.getArguments()});
          } catch (ClassNotFoundException ex) {
              throw new BuildException("Cannot use classic compiler, as it is "
                                          + "not available. \n"
                                          + " A common solution is "
                                          + "to set the environment variable"
                                          + " JAVA_HOME to your jdk directory.\n"
                                          + "It is currently set to \""
                                          + JavaEnvUtils.getJavaHome()
                                          + "\"",
                                          location);
          } catch (Exception ex) {
              if (ex instanceof BuildException) {
                  throw (BuildException) ex;
              } else {
                  throw new BuildException("Error starting classic compiler: ",
                                           ex, location);
              }
          }
      }
  }
  