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java.lang.reflect.Method.getGenericExceptionTypes() Method Example
Description
The java.lang.reflect.Method.getGenericExceptionTypes() method returns an array of Type objects that represent the exceptions declared to be thrown by this Method object. Returns an array of length 0 if the underlying method declares no exceptions in its throws clause.
Declaration
Following is the declaration for java.lang.reflect.Method.getGenericExceptionTypes() method.
public Type[] getGenericExceptionTypes()
Returns
an array of Types that represent the exception types thrown by the underlying method.
Exceptions
GenericSignatureFormatError − if the generic method signature does not conform to the format specified in The Java Virtual Machine Specification.
TypeNotPresentException − if the underlying method's throws clause refers to a non-existent type declaration.
MalformedParameterizedTypeException − if the underlying method's throws clause refers to a parameterized type that cannot be instantiated for any reason.
Example
The following example shows the usage of java.lang.reflect.Method.getGenericExceptionTypes() method.
Live Demopackage com.tutorialspoint; import java.lang.reflect.Method; import java.lang.reflect.Type; public class MethodDemo { public static void main(String[] args) { Method[] methods = SampleClass.class.getMethods(); Type[] exceptions = methods[0].getGenericExceptionTypes(); for (int i = 0; i < exceptions.length; i++) { System.out.println(exceptions[i]); } } } class SampleClass { private String sampleField; public String getSampleField() throws ArrayIndexOutOfBoundsException { return sampleField; } public void setSampleField(String sampleField) { this.sampleField = sampleField; } }
Let us compile and run the above program, this will produce the following result −
class java.lang.ArrayIndexOutOfBoundsException