bundles/org.apache.jasper.glassfish/src/org/apache/jasper/compiler/Compiler.java
private void generateJava() throws Exception {
        
        long t1, t2, t3, t4;
        t1 = t2 = t3 = t4 = 0;

        if (log.isLoggable(Level.FINE)) {
            t1 = System.currentTimeMillis();
        }

        // Setup page info area
        pageInfo = new PageInfo(new BeanRepository(ctxt.getClassLoader(),
                                                   errDispatcher),
                                ctxt.getJspFile());

        JspConfig jspConfig = options.getJspConfig();
        JspProperty jspProperty =
            jspConfig.findJspProperty(ctxt.getJspFile());

        /*
         * If the current uri is matched by a pattern specified in
         * a jsp-property-group in web.xml, initialize pageInfo with
         * those properties.
         */
        pageInfo.setELIgnored(JspUtil.booleanValue(
                                            jspProperty.isELIgnored()));
        pageInfo.setScriptingInvalid(JspUtil.booleanValue(
                                            jspProperty.isScriptingInvalid()));
        pageInfo.setTrimDirectiveWhitespaces(JspUtil.booleanValue(
                                            jspProperty.getTrimSpaces()));
        pageInfo.setDeferredSyntaxAllowedAsLiteral(JspUtil.booleanValue(
                                            jspProperty.getPoundAllowed()));
        pageInfo.setErrorOnUndeclaredNamespace(JspUtil.booleanValue(
            jspProperty.errorOnUndeclaredNamespace()));

        if (jspProperty.getIncludePrelude() != null) {
            pageInfo.setIncludePrelude(jspProperty.getIncludePrelude());
        }
        if (jspProperty.getIncludeCoda() != null) {
	    pageInfo.setIncludeCoda(jspProperty.getIncludeCoda());
        }
        if (options.isDefaultBufferNone() && pageInfo.getBufferValue() == null){
            // Set to unbuffered if not specified explicitly
            pageInfo.setBuffer(0);
        }

        String javaFileName = ctxt.getServletJavaFileName();
        ServletWriter writer = null;

        try {
            // Setup the ServletWriter
            Writer javaWriter = javaCompiler.getJavaWriter(
                                    javaFileName,
                                    ctxt.getOptions().getJavaEncoding());
            writer = new ServletWriter(new PrintWriter(javaWriter));
            ctxt.setWriter(writer);

            // Reset the temporary variable counter for the generator.
            JspUtil.resetTemporaryVariableName();

	    // Parse the file
	    ParserController parserCtl = new ParserController(ctxt, this);
	    pageNodes = parserCtl.parse(ctxt.getJspFile());

	    if (ctxt.isPrototypeMode()) {
                // generate prototype .java file for the tag file
                Generator.generate(writer, this, pageNodes);
                writer.close();
                writer = null;
                return;
            }

            // Validate and process attributes
            Validator.validate(this, pageNodes);

            if (log.isLoggable(Level.FINE)) {
                t2 = System.currentTimeMillis();
            }

            // Collect page info
            Collector.collect(this, pageNodes);

            // Compile (if necessary) and load the tag files referenced in
            // this compilation unit.
            tfp = new TagFileProcessor();
            tfp.loadTagFiles(this, pageNodes);

            if (log.isLoggable(Level.FINE)) {
                t3 = System.currentTimeMillis();
            }
        
            // Determine which custom tag needs to declare which scripting vars
            ScriptingVariabler.set(pageNodes, errDispatcher);

            // Optimizations by Tag Plugins
            TagPluginManager tagPluginManager = options.getTagPluginManager();
            tagPluginManager.apply(pageNodes, errDispatcher, pageInfo);

            // Optimization: concatenate contiguous template texts.
            TextOptimizer.concatenate(this, pageNodes);

            // Generate static function mapper codes.
            ELFunctionMapper.map(this, pageNodes);

            // generate servlet .java file
            Generator.generate(writer, this, pageNodes);
            writer.close();
            writer = null;

            // The writer is only used during the compile, dereference
            // it in the JspCompilationContext when done to allow it
            // to be GC'd and save memory.
            ctxt.setWriter(null);

            if (log.isLoggable(Level.FINE)) {
                t4 = System.currentTimeMillis();
                log.fine("Generated "+ javaFileName + " total="
                          + (t4-t1) + " generate=" + (t4-t3)
                          + " validate=" + (t2-t1));
            }

        } catch (Exception e) {
            if (writer != null) {
                try {
                    writer.close();
                    writer = null;
                } catch (Exception e1) {
                    // do nothing
                }
            }
            // Remove the generated .java file
            javaCompiler.doJavaFile(false);
            throw e;
        } finally {
            if (writer != null) {
                try {
                    writer.close();
                } catch (Exception e2) {
                    // do nothing
                }
            }
        }
        
        // JSR45 Support
        if (! options.isSmapSuppressed()) {
            smapUtil.generateSmap(pageNodes);
        }

        // If any proto type .java and .class files was generated,
        // the prototype .java may have been replaced by the current
        // compilation (if the tag file is self referencing), but the
        // .class file need to be removed, to make sure that javac would
        // generate .class again from the new .java file just generated.
        tfp.removeProtoTypeFiles(ctxt.getClassFileName());
    }
private void generateJava() throws Exception {
        
        long t1, t2, t3, t4;
        t1 = t2 = t3 = t4 = 0;

        if (log.isLoggable(Level.FINE)) {
            t1 = System.currentTimeMillis();
        }

        // Setup page info area
        pageInfo = new PageInfo(new BeanRepository(ctxt.getClassLoader(),
                                                   errDispatcher),
                                ctxt.getJspFile());

        JspConfig jspConfig = options.getJspConfig();
        JspProperty jspProperty =
            jspConfig.findJspProperty(ctxt.getJspFile());

        /*
         * If the current uri is matched by a pattern specified in
         * a jsp-property-group in web.xml, initialize pageInfo with
         * those properties.
         */
        pageInfo.setELIgnored(JspUtil.booleanValue(
                                            jspProperty.isELIgnored()));
        pageInfo.setScriptingInvalid(JspUtil.booleanValue(
                                            jspProperty.isScriptingInvalid()));
        pageInfo.setTrimDirectiveWhitespaces(JspUtil.booleanValue(
                                            jspProperty.getTrimSpaces()));
        pageInfo.setDeferredSyntaxAllowedAsLiteral(JspUtil.booleanValue(
                                            jspProperty.getPoundAllowed()));
        pageInfo.setErrorOnUndeclaredNamespace(JspUtil.booleanValue(
            jspProperty.errorOnUndeclaredNamespace()));

        if (jspProperty.getIncludePrelude() != null) {
            pageInfo.setIncludePrelude(jspProperty.getIncludePrelude());
        }
        if (jspProperty.getIncludeCoda() != null) {
	    pageInfo.setIncludeCoda(jspProperty.getIncludeCoda());
        }
        if (options.isDefaultBufferNone() && pageInfo.getBufferValue() == null){
            // Set to unbuffered if not specified explicitly
            pageInfo.setBuffer(0);
        }

        String javaFileName = ctxt.getServletJavaFileName();
        ServletWriter writer = null;

        try {
            // Setup the ServletWriter
            Writer javaWriter = javaCompiler.getJavaWriter(
                                    javaFileName,
                                    ctxt.getOptions().getJavaEncoding());
            writer = new ServletWriter(new PrintWriter(javaWriter));
            ctxt.setWriter(writer);

            // Reset the temporary variable counter for the generator.
            JspUtil.resetTemporaryVariableName();

	    // Parse the file
	    ParserController parserCtl = new ParserController(ctxt, this);
	    pageNodes = parserCtl.parse(ctxt.getJspFile());

	    if (ctxt.isPrototypeMode()) {
                // generate prototype .java file for the tag file
                Generator.generate(writer, this, pageNodes);
                writer.close();
                writer = null;
                return;
            }

            // Validate and process attributes
            Validator.validate(this, pageNodes);

            if (log.isLoggable(Level.FINE)) {
                t2 = System.currentTimeMillis();
            }

            // Collect page info
            Collector.collect(this, pageNodes);

            // Compile (if necessary) and load the tag files referenced in
            // this compilation unit.
            tfp = new TagFileProcessor();
            tfp.loadTagFiles(this, pageNodes);

            if (log.isLoggable(Level.FINE)) {
                t3 = System.currentTimeMillis();
            }
        
            // Determine which custom tag needs to declare which scripting vars
            ScriptingVariabler.set(pageNodes, errDispatcher);

            // Optimizations by Tag Plugins
            TagPluginManager tagPluginManager = options.getTagPluginManager();
            tagPluginManager.apply(pageNodes, errDispatcher, pageInfo);

            // Optimization: concatenate contiguous template texts.
            TextOptimizer.concatenate(this, pageNodes);

            // Generate static function mapper codes.
            ELFunctionMapper.map(this, pageNodes);

            // generate servlet .java file
            Generator.generate(writer, this, pageNodes);
            writer.close();
            writer = null;

            // The writer is only used during the compile, dereference
            // it in the JspCompilationContext when done to allow it
            // to be GC'd and save memory.
            ctxt.setWriter(null);

            if (log.isLoggable(Level.FINE)) {
                t4 = System.currentTimeMillis();
                log.fine("Generated "+ javaFileName + " total="
                          + (t4-t1) + " generate=" + (t4-t3)
                          + " validate=" + (t2-t1));
            }

        } catch (Exception e) {
            if (writer != null) {
                try {
                    writer.close();
                    writer = null;
                } catch (Exception e1) {
                    // do nothing
                }
            }
            // Remove the generated .java file
            javaCompiler.doJavaFile(false);
            throw e;
        } finally {
            if (writer != null) {
                try {
                    writer.close();
                } catch (Exception e2) {
                    // do nothing
                }
            }
        }
        
        // JSR45 Support
        if (! options.isSmapSuppressed()) {
            smapUtil.generateSmap(pageNodes);
        }

        // If any proto type .java and .class files was generated,
        // the prototype .java may have been replaced by the current
        // compilation (if the tag file is self referencing), but the
        // .class file need to be removed, to make sure that javac would
        // generate .class again from the new .java file just generated.
        tfp.removeProtoTypeFiles(ctxt.getClassFileName());
    }
Compile the jsp file into equivalent servlet in java source