Enum JavaError 

pub enum JavaError {
    Io(String),
    CompilationFailed(String),
    RuntimeFailed(String),
    InvalidUtf8(FromUtf8Error),
    InvalidChar,
}

All errors that java! and java_fn! can return at runtime (and that ct_java! maps to compile_error! diagnostics at build time).

Variants

Io(String)

An I/O error while creating the temp directory, writing the source file, or spawning javac/java (e.g. the binary is not on PATH).

CompilationFailed(String)

javac exited with a non-zero status. The 0 field contains the compiler diagnostic output (stderr).

RuntimeFailed(String)

The JVM exited with a non-zero status (e.g. an unhandled exception). The 0 field contains the exception message and stack trace (stderr).

InvalidUtf8(FromUtf8Error)

The Java run() method returned a String whose bytes are not valid UTF-8.

InvalidChar

The Java run() method returned a char value that is not a valid Unicode scalar (i.e. a lone surrogate half).

Trait Implementations

impl Clone for JavaError

fn clone(&self) -> JavaError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for JavaError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for JavaError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for JavaError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<FromUtf8Error> for JavaError

fn from(source: FromUtf8Error) -> Self

Converts to this type from the input type.

impl PartialEq for JavaError

fn eq(&self, other: &JavaError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for JavaError

impl StructuralPartialEq for JavaError