My usage case is compiling generated source files from a java program using the ToolProvider and JavaCompiler classes provided in JDK 6. The source files contain references to classes in the context classloader (it runs in a J2EE container), but not in the system classloader. My understanding is that by default the ToolProvider will cre...
Hi can you please let me know in which language the Java compiler, virtual machine (JVM) and java is written. ...
I have three java types as defined below: Main.java: import java.util.Arrays; import java.util.List; public class Main { private Object callFunction() { OperationDefinitions func = OperationDefinitions.CONCATENATE; List<Object> values = Arrays.asList(new Object[] {"ABC", "-", "DEF"}); return func.call (values)...
I am a newbie on MyEclipse id. On my system, I have installed sun jre(not jdk) and MyEclipse. I have searched for javac.exe in installed files of MyEclipse in Program Files (windows platform), but there also I got no results found for javac.exe I have no clue, that which tool MyEclipse is using to compile .java files. 1 more question...
I use the class javax.tools.JavaCompiler (jdk6) to compile a source file, but the source file depends on some jar file. How to set the classpath of the javax.tools.JavaCompiler? ...
I'm trying to compile many files using the Compiler API. Say I have a directory structure .../program +/org +/foo |+ Main.java +/bar + Tools.java Is there any way to discover all the Java files and make it compiler everything without resorting to recursing into all the directories and finding all the *.java file...
hi, i want to use JavaCompiler to dynamic create some classes. i find the source code of javax.tools package, but there is no implementation, some posts on internet says it depends on tools.jar, i am not sure tools.jar associates with JRE. so can i run the program in a JRE environment without JDK installed? another question, what is t...
Hi, Is there any way to run program compiled by JavaCompiler? [javax.tools.JavaCompiler] My code: JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>(); CompilationTask task = compiler.getTask(null, null, diagnostics, null, n...
hi, I am writing web app for java learning. Using which users may compile their code on my serwer + run that code. Compiling is easy with JavaCompiler: JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>(); CompilationTask...
I am looking to compile an application in Java, made up of a various number of java classes in a certain number of packages. At the command line, I can change to the folder containing the root package and type: javac rootpackage/subpackage/*.java or javac rootpackage/*/*.java to compile all the java classes in all the primary subp...
I'm trying to compile some java file dynamically, the compilation process works fine, until I try to add a jar file to the build path, any form of adding it did not work for me. if every option is a String then how to parse it so it would be legal for the compiler? Thanks in advance, Adam Zehavi. ...
Hi, Is the java compiler smart enough to optimize loop below (by extracting the Double average = new Double( totalTime / callCount ); out of the for loop? public double computeSD( Set values, int callCount, long totalTime ) { double diffs = 0.0d; for( Iterator i=values.iterator(); i.hasNext(); ) { double value = ( ( Double...
If the java program is compiled as javac t1.java > a //error contents redirecedt to a,file a.But a doesnt have the error contents The contents of t1.java is as: class t1{ public static void main(String[] args) { System.out.printn("Hello World!"); // Display the string. } } So now there is a error i.e, println is writte...
When running a Java 1.6 (1.6.0_03-b05) app I've added the -XX:+PrintCompilation flag. On the output for some methods, in particular some of those that I know are getting called a lot, I see the text made not entrant and made zombie. What do these mean? Best guess is that it's a decompilation step before recompiling either that method or...
I am using the following code to generate and compile java program inside another java program: import javax.tools.*; JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); compiler.run(null, null, null, "-classpath", classpath, souce_files_directory+"WebManager.java"); Inside the WebManager.java file I use regular HttpSesion m...
I'm writing a makefile that compiles a .java file in a different directory, and then I want to run it without changing directories. I want to do something along the lines of: $(SQM_JAVA_TOOL_DONE) : $(SQM_JAVA_TOOL) $(shell cd /home_dir) javac myjavafile.java java myjavafile where the java file is /home/myjavaf...
As the title suggests, what is the classpath of classes compiled with Javassist? My scenario is: Class A is compiled with Javassist. Class B is compiled with Java Compiler API and references Class A. The problem is that Class A is not visible to Class B... Any ideas? ...
Hello, I'm using the Java Compiler API to build a couple of classes at runtime. However, I'd like these classes to be compiled into the default compilation directory, to where other class files are generated. Is there a simple way to this? If I check the classpath I can see that the first URI is in fact the directory I want, but is it ...
Is there any tool which provides Java dynamic code generation and that also supports generics? Javassist for example, is the kind of tool that I need, but it does not support generics. I wrote a small lib which uses the Java 6 Compiler API, however as far as I know it depends on JDK. Is there a way to specify another compiler? Or to sh...
Hi, Does anyone know why you can reference a static method in the first line of the constructor using this() or super() but not a non-static method? Consider the following working: public class TestWorking{ private A a = null; public TestWorking(A aParam){ this.a = aParam; } public TestWorking(B bParam) { ...