| 1 | From 3dbdc68093e90f0ef9b77b70490d8e0b1dcfbf8f Mon Sep 17 00:00:00 2001
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| 2 | From: Julien Lepiller <[email protected]>
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| 3 | Date: Sun, 17 Sep 2017 21:08:45 +0200
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| 4 | Subject: [PATCH] Add ExceptionUtilsGenerator.java.
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| 5 |
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| 6 | A gradle task (in gradle/utils.gradle) is normally used to generate an
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| 7 | ExceptionUtils class. Since gradle depends on groovy, we cannot use it, so
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| 8 | we copy the code from the gradle task to a new file. Running this file then
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| 9 | generates the required class.
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| 10 | ---
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| 11 | .../codehaus/groovy/ExceptionUtilsGenerator.java | 75 ++++++++++++++++++++++
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| 12 | 1 file changed, 75 insertions(+)
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| 13 | create mode 100644 config/ant/src/org/codehaus/groovy/ExceptionUtilsGenerator.java
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| 14 |
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| 15 | diff --git a/config/ant/src/org/codehaus/groovy/ExceptionUtilsGenerator.java b/config/ant/src/org/codehaus/groovy/ExceptionUtilsGenerator.java
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| 16 | new file mode 100644
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| 17 | index 0000000..41f006d
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| 18 | |
| 19 | |
| 20 | @@ -0,0 +1,75 @@
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| 21 | +package org.codehaus.groovy;
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| 22 | +
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| 23 | +import org.objectweb.asm.*;
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| 24 | +
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| 25 | +import java.io.BufferedOutputStream;
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| 26 | +import java.io.File;
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| 27 | +import java.io.FileOutputStream;
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| 28 | +import java.io.IOException;
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| 29 | +import java.util.logging.Logger;
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| 30 | +
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| 31 | +public class ExceptionUtilsGenerator implements Opcodes {
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| 32 | + private final static Logger LOGGER = Logger.getLogger(ExceptionUtilsGenerator.class.getName());
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| 33 | +
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| 34 | + public static void main(String... args) {
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| 35 | + if (args==null || args.length==0) {
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| 36 | + throw new IllegalArgumentException("You must specify at least one file");
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| 37 | + }
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| 38 | +
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| 39 | + ClassWriter cw = new ClassWriter(0);
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| 40 | + MethodVisitor mv;
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| 41 | +
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| 42 | + cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, "org/codehaus/groovy/runtime/ExceptionUtils", null, "java/lang/Object", null);
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| 43 | +
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| 44 | + cw.visitSource("ExceptionUtils.java", null);
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| 45 | +
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| 46 | + mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
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| 47 | + mv.visitCode();
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| 48 | + Label l0 = new Label();
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| 49 | + mv.visitLabel(l0);
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| 50 | + mv.visitLineNumber(18, l0);
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| 51 | + mv.visitVarInsn(ALOAD, 0);
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| 52 | + mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
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| 53 | + mv.visitInsn(RETURN);
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| 54 | + Label l1 = new Label();
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| 55 | + mv.visitLabel(l1);
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| 56 | + mv.visitLocalVariable("this", "Lorg/codehaus/groovy/runtime/ExceptionUtils;", null, l0, l1, 0);
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| 57 | + mv.visitMaxs(1, 1);
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| 58 | + mv.visitEnd();
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| 59 | +
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| 60 | + mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "sneakyThrow", "(Ljava/lang/Throwable;)V", null, null);
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| 61 | + mv.visitCode();
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| 62 | + Label l2 = new Label();
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| 63 | + mv.visitLabel(l2);
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| 64 | + mv.visitLineNumber(20, l2);
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| 65 | + mv.visitVarInsn(ALOAD, 0);
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| 66 | + mv.visitInsn(ATHROW);
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| 67 | + Label l3 = new Label();
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| 68 | + mv.visitLabel(l3);
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| 69 | + mv.visitLocalVariable("e", "Ljava/lang/Throwable;", null, l2, l3, 0);
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| 70 | + mv.visitMaxs(1, 1);
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| 71 | + mv.visitEnd();
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| 72 | +
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| 73 | + cw.visitEnd();
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| 74 | +
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| 75 | + LOGGER.info("Generating ExceptionUtils");
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| 76 | + byte[] bytes = cw.toByteArray();
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| 77 | + for (String classFilePath : args) {
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| 78 | + File classFile = new File(classFilePath);
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| 79 | + if (classFile.getParentFile().exists() || classFile.getParentFile().mkdirs()) {
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| 80 | + try {
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| 81 | + if (classFile.exists()) {
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| 82 | + classFile.delete();
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| 83 | + }
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| 84 | + BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(classFile));
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| 85 | + bos.write(bytes);
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| 86 | + bos.close();
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| 87 | + } catch (IOException e) {
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| 88 | + LOGGER.warning("Unable to write file "+classFile);
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| 89 | + }
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| 90 | + } else {
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| 91 | + LOGGER.warning("Unable to create directory "+classFile.getParentFile());
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| 92 | + }
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| 93 | + }
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| 94 | + }
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| 95 | +}
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| 96 | --
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| 97 | 2.14.1
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| 98 |
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