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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* 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.jetbrains.jps.builders.impl.java;
import com.intellij.util.ExceptionUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jps.builders.java.CannotCreateJavaCompilerException;
import org.jetbrains.jps.builders.java.JavaCompilingTool;
import org.jetbrains.jps.javac.JavacMain;
import org.jetbrains.jps.model.java.compiler.JavaCompilers;
import javax.tools.*;
import java.io.File;
import java.util.Collections;
import java.util.List;
/**
* @author nik
*/
public class JavacCompilerTool extends JavaCompilingTool {
@NotNull
@Override
public String getId() {
return JavaCompilers.JAVAC_ID;
}
@Nullable
@Override
public String getAlternativeId() {
return JavaCompilers.JAVAC_API_ID;
}
@NotNull
@Override
public String getDescription() {
return "javac " + System.getProperty("java.version");
}
@NotNull
@Override
public JavaCompiler createCompiler() throws CannotCreateJavaCompilerException {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
if (compiler != null) {
return compiler;
}
String message = "System Java Compiler was not found in classpath";
// trying to obtain additional diagnostic for the case when compiler.jar is present, but there were problems with compiler class loading:
try {
Class.forName("com.sun.tools.javac.api.JavacTool", false, JavacMain.class.getClassLoader());
}
catch (Throwable ex) {
message = message + ":\n" + ExceptionUtil.getThrowableText(ex);
}
throw new CannotCreateJavaCompilerException(message);
}
@NotNull
@Override
public List<File> getAdditionalClasspath() {
return Collections.emptyList();
}
@Override
public List<String> getDefaultCompilerOptions() {
return Collections.singletonList("-implicit:class");
}
}
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