memorycompiler/src/main/java/com/taobao/arthas/compiler/DynamicCompiler.java [50:83]:
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        errors.clear();
        warnings.clear();

        JavaFileManager fileManager = new DynamicJavaFileManager(standardFileManager, dynamicClassLoader);

        DiagnosticCollector<JavaFileObject> collector = new DiagnosticCollector<JavaFileObject>();
        JavaCompiler.CompilationTask task = javaCompiler.getTask(null, fileManager, collector, options, null,
                        compilationUnits);

        try {

            if (!compilationUnits.isEmpty()) {
                boolean result = task.call();

                if (!result || collector.getDiagnostics().size() > 0) {

                    for (Diagnostic<? extends JavaFileObject> diagnostic : collector.getDiagnostics()) {
                        switch (diagnostic.getKind()) {
                        case NOTE:
                        case MANDATORY_WARNING:
                        case WARNING:
                            warnings.add(diagnostic);
                            break;
                        case OTHER:
                        case ERROR:
                        default:
                            errors.add(diagnostic);
                            break;
                        }

                    }

                    if (!errors.isEmpty()) {
                        throw new DynamicCompilerException("Compilation Error", errors);
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memorycompiler/src/main/java/com/taobao/arthas/compiler/DynamicCompiler.java [100:133]:
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        errors.clear();
        warnings.clear();

        JavaFileManager fileManager = new DynamicJavaFileManager(standardFileManager, dynamicClassLoader);

        DiagnosticCollector<JavaFileObject> collector = new DiagnosticCollector<JavaFileObject>();
        JavaCompiler.CompilationTask task = javaCompiler.getTask(null, fileManager, collector, options, null,
                        compilationUnits);

        try {

            if (!compilationUnits.isEmpty()) {
                boolean result = task.call();

                if (!result || collector.getDiagnostics().size() > 0) {

                    for (Diagnostic<? extends JavaFileObject> diagnostic : collector.getDiagnostics()) {
                        switch (diagnostic.getKind()) {
                        case NOTE:
                        case MANDATORY_WARNING:
                        case WARNING:
                            warnings.add(diagnostic);
                            break;
                        case OTHER:
                        case ERROR:
                        default:
                            errors.add(diagnostic);
                            break;
                        }

                    }

                    if (!errors.isEmpty()) {
                        throw new DynamicCompilerException("Compilation Error", errors);
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