bundles/org.apache.jasper.glassfish/src/org/apache/jasper/compiler/Compiler.java
private void initJavaCompiler() throws JasperException {
        boolean disablejsr199 = Boolean.TRUE.toString().equals(
            System.getProperty("org.apache.jasper.compiler.disablejsr199"));
        Double version = 
            Double.valueOf(System.getProperty("java.specification.version"));
        if (!disablejsr199 &&
               (version >= 1.6 || getClassFor("javax.tools.Tool") != null)) {
            // JDK 6 or bundled with jsr199 compiler
            javaCompiler = new Jsr199JavaCompiler();
        } else {
            Class c = getClassFor("org.eclipse.jdt.internal.compiler.Compiler");
            if (c != null) {
                c = getClassFor("org.apache.jasper.compiler.JDTJavaCompiler");
                if (c != null) {
                    try {
                        javaCompiler = (JavaCompiler) c.newInstance();
                    } catch (Exception ex) {
                    }
                }
            }
        }
        if (javaCompiler == null) {
            Class c = getClassFor("org.apache.tools.ant.taskdefs.Javac");
            if (c != null) {
                c = getClassFor("org.apache.jasper.compiler.AntJavaCompiler");
                if (c != null) {
                    try {
                        javaCompiler = (JavaCompiler) c.newInstance();
                    } catch (Exception ex) {
                    }
                }
            }
        }
        if (javaCompiler == null) {
            errDispatcher.jspError("jsp.error.nojavac");
        }

        javaCompiler.init(ctxt, errDispatcher, jspcMode);
    }
private void initJavaCompiler() throws JasperException {
        boolean disablejsr199 = Boolean.TRUE.toString().equals(
            System.getProperty("org.apache.jasper.compiler.disablejsr199"));
        Double version = 
            Double.valueOf(System.getProperty("java.specification.version"));
        if (!disablejsr199 &&
               (version >= 1.6 || getClassFor("javax.tools.Tool") != null)) {
            // JDK 6 or bundled with jsr199 compiler
            javaCompiler = new Jsr199JavaCompiler();
        } else {
            Class c = getClassFor("org.eclipse.jdt.internal.compiler.Compiler");
            if (c != null) {
                c = getClassFor("org.apache.jasper.compiler.JDTJavaCompiler");
                if (c != null) {
                    try {
                        javaCompiler = (JavaCompiler) c.newInstance();
                    } catch (Exception ex) {
                    }
                }
            }
        }
        if (javaCompiler == null) {
            Class c = getClassFor("org.apache.tools.ant.taskdefs.Javac");
            if (c != null) {
                c = getClassFor("org.apache.jasper.compiler.AntJavaCompiler");
                if (c != null) {
                    try {
                        javaCompiler = (JavaCompiler) c.newInstance();
                    } catch (Exception ex) {
                    }
                }
            }
        }
        if (javaCompiler == null) {
            errDispatcher.jspError("jsp.error.nojavac");
        }

        javaCompiler.init(ctxt, errDispatcher, jspcMode);
    }
private void initJavaCompiler ( ) throws JasperException { boolean disablejsr199 = Boolean . TRUE . toString ( ) . equals ( System . getProperty ( "org.apache.jasper.compiler.disablejsr199" ) ) ; Double version = Double . valueOf ( System . getProperty ( "java.specification.version" ) ) ; if ( ! disablejsr199 && ( version >= 1.6 || getClassFor ( "javax.tools.Tool" ) != null ) ) { // JDK 6 or bundled with jsr199 compiler javaCompiler = new Jsr199JavaCompiler ( ) ; } else { Class c = getClassFor ( "org.eclipse.jdt.internal.compiler.Compiler" ) ; if ( c != null ) { c = getClassFor ( "org.apache.jasper.compiler.JDTJavaCompiler" ) ; if ( c != null ) { try { javaCompiler = ( JavaCompiler ) c . newInstance ( ) ; } catch ( Exception ex ) { } } } } if ( javaCompiler == null ) { Class c = getClassFor ( "org.apache.tools.ant.taskdefs.Javac" ) ; if ( c != null ) { c = getClassFor ( "org.apache.jasper.compiler.AntJavaCompiler" ) ; if ( c != null ) { try { javaCompiler = ( JavaCompiler ) c . newInstance ( ) ; } catch ( Exception ex ) { } } } } if ( javaCompiler == null ) { errDispatcher . jspError ( "jsp.error.nojavac" ) ; } javaCompiler . init ( ctxt , errDispatcher , jspcMode ) ; }
Get an instance of JavaCompiler.
If Running with JDK 6, use a Jsr199JavaCompiler that supports JSR199,
else if eclipse's JDT compiler is available, use that.
The default is to use javac from ant.
Get an instance of JavaCompiler . If Running with JDK 6 use a Jsr199JavaCompiler that supports JSR199 else if eclipse s JDT compiler is available use that . The default is to use javac from ant .