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javazoom.jl.decoder

public Class JavaLayerException

extends Exception
Class Inheritance
Known Direct Subclasses
javazoom.jl.decoder.BitstreamException, javazoom.jl.decoder.DecoderException
Imports
java.io.PrintStream
The JavaLayerException is the base class for all API-level exceptions thrown by JavaLayer. To facilitate conversion and common handling of exceptions from other domains, the class can delegate some functionality to a contained Throwable instance.

Author
MDM

Field Summary

Modifier and TypeField and Description
private Throwable
exception

Constructor Summary

AccessConstructor and Description
public
JavaLayerException()

public
JavaLayerException(String msg)

public
JavaLayerException(String msg, Throwable t)

Method Summary

Modifier and TypeMethod and Description
public Throwable
getException()

public void
printStackTrace()

Overrides java.lang.Throwable.printStackTrace.

Prints this throwable and its backtrace to the standard error stream.
public void
printStackTrace(PrintStream
PrintStream to use for output
ps)

Overrides java.lang.Throwable.printStackTrace.

Prints this throwable and its backtrace to the specified print stream.

Field Detail

exceptionback to summary
private Throwable exception

Constructor Detail

JavaLayerExceptionback to summary
public JavaLayerException()
JavaLayerExceptionback to summary
public JavaLayerException(String msg)
JavaLayerExceptionback to summary
public JavaLayerException(String msg, Throwable t)

Method Detail

getExceptionback to summary
public Throwable getException()
printStackTraceback to summary
public void printStackTrace()

Overrides java.lang.Throwable.printStackTrace.

Doc from java.lang.Throwable.printStackTrace.

Prints this throwable and its backtrace to the standard error stream. This method prints a stack trace for this Throwable object on the error output stream that is the value of the field System.err. The first line of output contains the result of the toString() method for this object. Remaining lines represent data previously recorded by the method fillInStackTrace(). The format of this information depends on the implementation, but the following example may be regarded as typical: 

java.lang.NullPointerException
        at MyClass.mash(MyClass.java:9)
        at MyClass.crunch(MyClass.java:6)
        at MyClass.main(MyClass.java:3)
This example was produced by running the program: 
class MyClass {
    public static void main(String[] args) {
        crunch(null);
    }
    static void crunch(int[] a) {
        mash(a);
    }
    static void mash(int[] b) {
        System.out.println(b[0]);
    }
}
The backtrace for a throwable with an initialized, non-null cause should generally include the backtrace for the cause. The format of this information depends on the implementation, but the following example may be regarded as typical: 
HighLevelException: MidLevelException: LowLevelException
        at Junk.a(Junk.java:13)
        at Junk.main(Junk.java:4)
Caused by: MidLevelException: LowLevelException
        at Junk.c(Junk.java:23)
        at Junk.b(Junk.java:17)
        at Junk.a(Junk.java:11)
        ... 1 more
Caused by: LowLevelException
        at Junk.e(Junk.java:30)
        at Junk.d(Junk.java:27)
        at Junk.c(Junk.java:21)
        ... 3 more
Note the presence of lines containing the characters "...". These lines indicate that the remainder of the stack trace for this exception matches the indicated number of frames from the bottom of the stack trace of the exception that was caused by this exception (the "enclosing" exception). This shorthand can greatly reduce the length of the output in the common case where a wrapped exception is thrown from the same method as the "causative exception" is caught. The above example was produced by running the program: 
public class Junk {
    public static void main(String args[]) {
        try {
            a();
        } catch(HighLevelException e) {
            e.printStackTrace();
        }
    }
    static void a() throws HighLevelException {
        try {
            b();
        } catch(MidLevelException e) {
            throw new HighLevelException(e);
        }
    }
    static void b() throws MidLevelException {
        c();
    }
    static void c() throws MidLevelException {
        try {
            d();
        } catch(LowLevelException e) {
            throw new MidLevelException(e);
        }
    }
    static void d() throws LowLevelException {
       e();
    }
    static void e() throws LowLevelException {
        throw new LowLevelException();
    }
}

class HighLevelException extends Exception {
    HighLevelException(Throwable cause) { super(cause); }
}

class MidLevelException extends Exception {
    MidLevelException(Throwable cause)  { super(cause); }
}

class LowLevelException extends Exception {
}
As of release 7, the platform supports the notion of suppressed exceptions (in conjunction with the try-with-resources statement). Any exceptions that were suppressed in order to deliver an exception are printed out beneath the stack trace. The format of this information depends on the implementation, but the following example may be regarded as typical: 
Exception in thread "main" java.lang.Exception: Something happened
        at Foo.bar(Foo.java:10)
        at Foo.main(Foo.java:5)
        Suppressed: Resource$CloseFailException: Resource ID = 0
                at Resource.close(Resource.java:26)
                at Foo.bar(Foo.java:9)
                ... 1 more
Note that the "... n more" notation is used on suppressed exceptions just as it is used on causes. Unlike causes, suppressed exceptions are indented beyond their "containing exceptions."

An exception can have both a cause and one or more suppressed exceptions: 

Exception in thread "main" java.lang.Exception: Main block
        at Foo3.main(Foo3.java:7)
        Suppressed: Resource$CloseFailException: Resource ID = 2
                at Resource.close(Resource.java:26)
                at Foo3.main(Foo3.java:5)
        Suppressed: Resource$CloseFailException: Resource ID = 1
                at Resource.close(Resource.java:26)
                at Foo3.main(Foo3.java:5)
Caused by: java.lang.Exception: I did it
        at Foo3.main(Foo3.java:8)
Likewise, a suppressed exception can have a cause: 
Exception in thread "main" java.lang.Exception: Main block
        at Foo4.main(Foo4.java:6)
        Suppressed: Resource2$CloseFailException: Resource ID = 1
                at Resource2.close(Resource2.java:20)
                at Foo4.main(Foo4.java:5)
        Caused by: java.lang.Exception: Rats, you caught me
                at Resource2$CloseFailException.<init>(Resource2.java:45)
                ... 2 more
printStackTraceback to summary
public void printStackTrace(PrintStream ps)

Overrides java.lang.Throwable.printStackTrace.

Doc from java.lang.Throwable.printStackTrace.

Prints this throwable and its backtrace to the specified print stream.

Parameters
ps:PrintStream

PrintStream to use for output