java.lang.Object
org.eclipse.persistence.internal.libraries.asm.Attribute
org.eclipse.persistence.internal.libraries.asm.commons.ModuleHashesAttribute

public final class ModuleHashesAttribute extends Attribute
A ModuleHashes attribute. This attribute is specific to the OpenJDK and may change in the future.
  • Field Details

    • algorithm

      public String algorithm
      The name of the hashing algorithm.
    • modules

      public List<String> modules
      A list of module names.
    • hashes

      public List<byte[]> hashes
      The hash of the modules in modules. The two lists must have the same size.
  • Constructor Details

  • Method Details

    • read

      protected Attribute read(ClassReader classReader, int offset, int length, char[] charBuffer, int codeAttributeOffset, Label[] labels)
      Description copied from class: Attribute
      Reads a Attribute.type attribute. This method must return a new Attribute object, of type Attribute.type, corresponding to the 'length' bytes starting at 'offset', in the given ClassReader.
      Overrides:
      read in class Attribute
      Parameters:
      classReader - the class that contains the attribute to be read.
      offset - index of the first byte of the attribute's content in ClassReader. The 6 attribute header bytes (attribute_name_index and attribute_length) are not taken into account here.
      length - the length of the attribute's content (excluding the 6 attribute header bytes).
      charBuffer - the buffer to be used to call the ClassReader methods requiring a 'charBuffer' parameter.
      codeAttributeOffset - index of the first byte of content of the enclosing Code attribute in ClassReader, or -1 if the attribute to be read is not a Code attribute. The 6 attribute header bytes (attribute_name_index and attribute_length) are not taken into account here.
      labels - the labels of the method's code, or null if the attribute to be read is not a Code attribute.
      Returns:
      a new Attribute object corresponding to the specified bytes.
    • write

      protected ByteVector write(ClassWriter classWriter, byte[] code, int codeLength, int maxStack, int maxLocals)
      Description copied from class: Attribute
      Returns the byte array form of the content of this attribute. The 6 header bytes (attribute_name_index and attribute_length) must not be added in the returned ByteVector.
      Overrides:
      write in class Attribute
      Parameters:
      classWriter - the class to which this attribute must be added. This parameter can be used to add the items that corresponds to this attribute to the constant pool of this class.
      code - the bytecode of the method corresponding to this Code attribute, or null if this attribute is not a Code attribute. Corresponds to the 'code' field of the Code attribute.
      codeLength - the length of the bytecode of the method corresponding to this code attribute, or 0 if this attribute is not a Code attribute. Corresponds to the 'code_length' field of the Code attribute.
      maxStack - the maximum stack size of the method corresponding to this Code attribute, or -1 if this attribute is not a Code attribute.
      maxLocals - the maximum number of local variables of the method corresponding to this code attribute, or -1 if this attribute is not a Code attribute.
      Returns:
      the byte array form of this attribute.