org.apache.tools.ant.taskdefs.compilers.Javac13 Maven / Gradle / Ivy
/*
* 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.lang.reflect.Method;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.Commandline;
/**
* The implementation of the javac compiler for JDK 1.3
* This is primarily a cut-and-paste from the original javac task before it
* was refactored.
*
* @since Ant 1.3
*/
public class Javac13 extends DefaultCompilerAdapter {
/**
* Integer returned by the "Modern" jdk1.3 compiler to indicate success.
*/
private static final int MODERN_COMPILER_SUCCESS = 0;
/**
* Run the compilation.
* @return true if the compiler ran with a zero exit result (ok)
* @exception BuildException if the compilation has problems.
*/
@Override
public boolean execute() throws BuildException {
attributes.log("Using modern compiler", Project.MSG_VERBOSE);
Commandline cmd = setupModernJavacCommand();
// Use reflection to be able to build on all JDKs >= 1.1:
try {
Class c = Class.forName("com.sun.tools.javac.Main");
Object compiler = c.getDeclaredConstructor().newInstance();
Method compile = c.getMethod("compile", String[].class);
int result = (Integer) compile.invoke(compiler,
(Object) cmd.getArguments());
return result == MODERN_COMPILER_SUCCESS;
} catch (Exception ex) {
if (ex instanceof BuildException) {
throw (BuildException) ex;
}
throw new BuildException("Error starting modern compiler",
ex, location);
}
}
}