| 1 | /*
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| 2 | * Copyright 2001-2002,2004 The Apache Software Foundation
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | *
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| 16 | */
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| 17 |
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| 18 | package org.apache.tools.ant.taskdefs.compilers;
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| 19 |
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| 20 | import java.lang.reflect.Method;
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| 21 | import org.apache.tools.ant.BuildException;
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| 22 | import org.apache.tools.ant.Project;
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| 23 | import org.apache.tools.ant.types.Commandline;
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| 24 |
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| 25 |
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| 26 | /**
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| 27 | * The implementation of the javac compiler for JDK 1.3
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| 28 | * This is primarily a cut-and-paste from the original javac task before it
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| 29 | * was refactored.
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| 30 | *
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| 31 | * @since Ant 1.3
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| 32 | */
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| 33 | public class Javac13 extends DefaultCompilerAdapter {
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| 34 |
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| 35 | /**
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| 36 | * Integer returned by the "Modern" jdk1.3 compiler to indicate success.
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| 37 | */
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| 38 | private static final int MODERN_COMPILER_SUCCESS = 0;
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| 39 |
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| 40 | /**
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| 41 | * Run the compilation.
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| 42 | *
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| 43 | * @exception BuildException if the compilation has problems.
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| 44 | */
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| 45 | public boolean execute() throws BuildException {
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| 46 | attributes.log("Using modern compiler", Project.MSG_VERBOSE);
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| 47 | Commandline cmd = setupModernJavacCommand();
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| 48 |
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| 49 | // Use reflection to be able to build on all JDKs >= 1.1:
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| 50 | try {
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| 51 | Class c = Class.forName ("com.sun.tools.javac.Main");
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| 52 | Object compiler = c.newInstance ();
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| 53 | Method compile = c.getMethod ("compile",
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| 54 | new Class [] {(new String [] {}).getClass ()});
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| 55 | int result = ((Integer) compile.invoke
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| 56 | (compiler, new Object[] {cmd.getArguments()}))
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| 57 | .intValue ();
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| 58 | return (result == MODERN_COMPILER_SUCCESS);
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| 59 | } catch (Exception ex) {
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| 60 | if (ex instanceof BuildException) {
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| 61 | throw (BuildException) ex;
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| 62 | } else {
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| 63 | throw new BuildException("Error starting modern compiler",
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| 64 | ex, location);
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| 65 | }
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| 66 | }
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| 67 | }
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| 68 | }
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