org.apache.bcel.classfile

## Class ClassParser

- java.lang.Object
- - org.apache.bcel.classfile.ClassParser

-     public final class ClassParser
      extends Object

  Wrapper class that parses a given Java .class file. The method parse returns a JavaClass object on success. When an I/O error or an inconsistency occurs an appropriate exception is propagated back to the caller. The structure and the names comply, except for a few conveniences, exactly with the JVM specification 1.0. See this paper for further details about the structure of a bytecode file.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ClassParser(InputStream inputStream, String fileName)` Parses class from the given stream.
    `ClassParser(String fileName)` Parses class from given .class file.
    `ClassParser(String zipFile, String fileName)` Parses class from given .class file in a ZIP-archive

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `JavaClass` | `parse()` Parses the given Java class file and return an object that represents the contained data, i.e., constants, methods, fields and commands.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### ClassParser

          public ClassParser(InputStream inputStream,
                             String fileName)

      Parses class from the given stream.
      Parameters:
        `inputStream` - Input stream
        `fileName` - File name

    - #### ClassParser

          public ClassParser(String fileName)

      Parses class from given .class file.
      Parameters:
        `fileName` - file name

    - #### ClassParser

          public ClassParser(String zipFile,
                             String fileName)

      Parses class from given .class file in a ZIP-archive
      Parameters:
        `zipFile` - zip file name
        `fileName` - file name

  - ### Method Detail

    - #### parse

          public JavaClass parse()
                          throws IOException,
                                 ClassFormatException

      Parses the given Java class file and return an object that represents the contained data, i.e., constants, methods, fields and commands. A ClassFormatException is raised, if the file is not a valid .class file. (This does not include verification of the byte code as it is performed by the java interpreter).
      Returns:
        Class object representing the parsed class file
      Throws:
        `IOException` - if an I/O error occurs.
        `ClassFormatException` - if a class is malformed or cannot be interpreted as a class file

Copyright © 2004–2022 The Apache Software Foundation. All rights reserved.