Issues while deserializing exception/throwable using Jackson in Java

Question

I am facing issues while deserializing Exception and Throwable instances using Jackson (version 2.2.1). Consider the following snippet:

Answer 1

Add this:

objectMapper.configure( DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

And make out of the deserialized exception the same way, as for the first time:

System.out.println( objectMapper.writeValueAsString( throwable ) );

---

I used the following code:

public static void main( String[] args ) throws IOException
{
    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.configure( SerializationFeature.INDENT_OUTPUT, true );
    objectMapper.configure( DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    objectMapper.setVisibility( PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY );
    objectMapper.enableDefaultTyping( ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY );

    try
    {
        Integer.parseInt( "String" );
    }
    catch( NumberFormatException e )
    {
        Throwable throwable = objectMapper.readValue( objectMapper.writeValueAsString( e ), Throwable.class );
        System.out.println( objectMapper.writeValueAsString( throwable ) );
    }
}

Added this jars: jackson-annotations-2.2.0.jar, jackson-core-2.2.0.jar and jackson-databind-2.2.0.jar.

After execution, the following is printed:

{
"@class" : "java.lang.NumberFormatException",
"detailMessage" : "For input string: \"String\"",
"cause" : null,
"stackTrace" : [ {
    "declaringClass" : "java.lang.NumberFormatException",
    "methodName" : "forInputString",
    "fileName" : "NumberFormatException.java",
    "lineNumber" : 48,
    "className" : "java.lang.NumberFormatException",
    "nativeMethod" : false
}, {
    "declaringClass" : "java.lang.Integer",
    "methodName" : "parseInt",
    "fileName" : "Integer.java",
    "lineNumber" : 449,
    "className" : "java.lang.Integer",
    "nativeMethod" : false
}, {
    "declaringClass" : "java.lang.Integer",
    "methodName" : "parseInt",
    "fileName" : "Integer.java",
    "lineNumber" : 499,
    "className" : "java.lang.Integer",
    "nativeMethod" : false
}, {
    "declaringClass" : "com.sample.bla.Main",
    "methodName" : "main",
    "fileName" : "Main.java",
    "lineNumber" : 24,
    "className" : "com.sample.bla.Main",
    "nativeMethod" : false
}, {
    "declaringClass" : "sun.reflect.NativeMethodAccessorImpl",
    "methodName" : "invoke0",
    "fileName" : "NativeMethodAccessorImpl.java",
    "lineNumber" : -2,
    "className" : "sun.reflect.NativeMethodAccessorImpl",
    "nativeMethod" : true
}, {
    "declaringClass" : "sun.reflect.NativeMethodAccessorImpl",
    "methodName" : "invoke",
    "fileName" : "NativeMethodAccessorImpl.java",
    "lineNumber" : 39,
    "className" : "sun.reflect.NativeMethodAccessorImpl",
    "nativeMethod" : false
}, {
    "declaringClass" : "sun.reflect.DelegatingMethodAccessorImpl",
    "methodName" : "invoke",
    "fileName" : "DelegatingMethodAccessorImpl.java",
    "lineNumber" : 25,
    "className" : "sun.reflect.DelegatingMethodAccessorImpl",
    "nativeMethod" : false
}, {
    "declaringClass" : "java.lang.reflect.Method",
    "methodName" : "invoke",
    "fileName" : "Method.java",
    "lineNumber" : 597,
    "className" : "java.lang.reflect.Method",
    "nativeMethod" : false
}, {
    "declaringClass" : "com.intellij.rt.execution.application.AppMain",
    "methodName" : "main",
    "fileName" : "AppMain.java",
    "lineNumber" : 120,
    "className" : "com.intellij.rt.execution.application.AppMain",
    "nativeMethod" : false
    } ],
    "message" : "For input string: \"String\"",
    "localizedMessage" : "For input string: \"String\""
}