Package java.io

Examples of java.io.DataInputStream.readShort()

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        String classResourceName = clazz.getName().replaceAll("\\.", "/") + ".class";
        InputStream input = Thread.currentThread().getContextClassLoader().getResourceAsStream(classResourceName);
        try {
            DataInputStream data = new DataInputStream(input);
            data.readInt();
            data.readShort(); // minor
            int major = data.readShort();
            assertThat(major).isEqualTo(JDK5_CLASS_VERSION);
        } finally {
            try { input.close(); } catch(Exception e) {}
        }
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        InputStream input = Thread.currentThread().getContextClassLoader().getResourceAsStream(classResourceName);
        try {
            DataInputStream data = new DataInputStream(input);
            data.readInt();
            data.readShort(); // minor
            int major = data.readShort();
            assertThat(major).isEqualTo(JDK5_CLASS_VERSION);
        } finally {
            try { input.close(); } catch(Exception e) {}
        }
    }
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    public ClassFile(InputStream is) throws IOException {
        DataInputStream dis = new DataInputStream(is);
        ConstantPool constantPool = new ConstantPool();

        int magic = dis.readInt(); // 0xCAFEBABE
        int minor = dis.readShort();
        int major = dis.readShort();

        constantPool.read(dis);
        constantPool.resolve();
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        DataInputStream dis = new DataInputStream(is);
        ConstantPool constantPool = new ConstantPool();

        int magic = dis.readInt(); // 0xCAFEBABE
        int minor = dis.readShort();
        int major = dis.readShort();

        constantPool.read(dis);
        constantPool.resolve();

        // class information
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        constantPool.read(dis);
        constantPool.resolve();

        // class information
        access_flags = dis.readShort();
        int this_class = dis.readShort();
        fullname = ((ClassCPInfo) constantPool.getEntry(this_class)).getClassName().replace('/', '.');
        int super_class = dis.readShort();

        // skip interfaces...
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        constantPool.read(dis);
        constantPool.resolve();

        // class information
        access_flags = dis.readShort();
        int this_class = dis.readShort();
        fullname = ((ClassCPInfo) constantPool.getEntry(this_class)).getClassName().replace('/', '.');
        int super_class = dis.readShort();

        // skip interfaces...
        int count = dis.readShort();
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        // class information
        access_flags = dis.readShort();
        int this_class = dis.readShort();
        fullname = ((ClassCPInfo) constantPool.getEntry(this_class)).getClassName().replace('/', '.');
        int super_class = dis.readShort();

        // skip interfaces...
        int count = dis.readShort();
        dis.skipBytes(count * 2); // short

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        int this_class = dis.readShort();
        fullname = ((ClassCPInfo) constantPool.getEntry(this_class)).getClassName().replace('/', '.');
        int super_class = dis.readShort();

        // skip interfaces...
        int count = dis.readShort();
        dis.skipBytes(count * 2); // short

        // skip fields...
        int numFields = dis.readShort();
        for (int i = 0; i < numFields; i++) {
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        // skip interfaces...
        int count = dis.readShort();
        dis.skipBytes(count * 2); // short

        // skip fields...
        int numFields = dis.readShort();
        for (int i = 0; i < numFields; i++) {
            // 3 short: access flags, name index, descriptor index
            dis.skip(2 * 3);
            // attribute list...
            int attributes_count = dis.readUnsignedShort();
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                dis.skipBytes(len);
            }
        }

        // read methods
        int method_count = dis.readShort();
        methods = new MethodInfo[method_count];
        for (int i = 0; i < method_count; i++) {
            methods[i] = new MethodInfo();
            methods[i].read(constantPool, dis);
        }
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