SPindent (Server Page Indenter) is a JSP/PHP structural validator and indenter. It performs structural compatibility check of inner HTML generated from "parallel" branches of process flow statements such as if/else. It allows for those HTML branches to have different entry and exit HTML stack points, as far as the branches are compatible. This allows for verification and proper indentation of handy workarounds, as well as rusty pyramids. It is based on MixedCC (Mixed Compiler Compiler).
OpenLaszlo Schema Generator provides methods to enhance LZX-Markup from the OpenLaszlo RIA with full schema/namespace support and validation. You can run it from the command line or from inside your project using ANT. The JAR contains tasks to generate an XSD from your project LZX files; by doing that, you have full Schema Validation in Eclipse, and it will show you all your XML schema errors. The validation is aware of ALL tags and attributes: the LZX base components (+incubator) and your project specific code. Further, you get content-sensitive drop down menus for Tags and Attributes.
SableCC is a parser generator that generates fully featured object-oriented frameworks for building compilers, interpreters, and other text parsers. In particular, generated frameworks include intuitive strictly-typed abstract syntax trees and tree walkers. SableCC also keeps a clean separation between machine-generated code and user-written code, which leads to a shorter development cycle.
JCPP is a complete, compliant, standalone, pure Java implementation of the C preprocessor. It is intended to be of use to people writing C-style compilers in Java using tools like sablecc, antlr, JLex, CUP, and so forth. It has been used to successfully preprocess much of the source code of the GNU C library.
AsDoclet can be used to generate Actionscript and C# files out of Java sources. Such a tool is useful for RIA and client/server applications where value objects are transmitted between server and client as serialized data that should be deserializable on both ends again. That includes remoting technologies like Flash Remoting, RTMP, Blaze DS, Red5, and Hessian.
Webcockpit is a Web application generator for reporting and monitoring applications. It generates complete JSP-based Web applications which contain charts and tables whose contents are retrieved using database queries. The charts and tables can be configured to link to each other, enabling master detail-like drill-down. You can provide your own HTML or JSP template files which are mixed with the generated JSP to provide a final Web application.
codavaj is Javadoc in reverse: a seemingly useless reverse engineering tool to transform HTML Javadoc into Java source file skeletons (or a reflection API) like internal representation. You can: convert an entire local Javadoc tree into Java source code; download an entire remote Javadoc tree via HTTP(S); and derive a Reflection-like API based on information derived from a Javadoc tree. It is provided as a Java command line tool.