If you have come to this post, then you are facing xml parsing issue in Java. Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203) One common issue for this is BOM character. So what is a BOM (BYTE ORDER MARK) character? When you have … Read more
Some of us need to create sequence diagrams while doing architecture design of product or a new feature. There are several online websites out there which can be used to draw sequence diagrams. Some of them are free & some of them are paid services. They support different features. Somewhere you can actually draw, somewhere … Read more
If you are here, that means probably you have encountered below error: Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387) at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) at sun.security.validator.Validator.validate(Validator.java:260) at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) … Read more
Sometimes we need to draw a binary tree or graph online to explain related stuffs. I wanted to share a website where you can write your tree or graph definition in plain english & you will get a graphical representation of it. You will just have to define relations between the nodes in text, that’s … Read more