Not sure what your use case for this is, but this should do it:
public boolean isValidJSON(final String json) {
boolean valid = false;
try {
final JsonParser parser = new ObjectMapper().getJsonFactory()
.createJsonParser(json);
while (parser.nextToken() != null) {
}
valid = true;
} catch (JsonParseException jpe) {
jpe.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
}
return valid;
}
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