I thought i read "somewhere" that -classic was no longer supported with 1.4; i noticed these items over at SUN.. The javac byte-code compiler has a new -source option that enables support for compiling source code containing assertions. Also, default compilation is for -target 1.2. Previously, the default was 1.1. The compiler now correctly detects unreachable empty statements, and The Java virtual machines in this release include several enhancements.
Signal-chaining facility. 64-bit support on SolarisTM-SPARCTM platform edition. Error-reporting mechanism. New facility for logging garbage-collection events. The Classic virtual machine is no longer shipped as part of the Java 2 SDK. -----Original Message----- From: Sebastien Boving [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 04, 2001 2:41 PM To: [EMAIL PROTECTED] Subject: Re: Ant 1.4.1 / JDK 1.4 beta3: ' Some more on this 'Modern compiler is not available / Cannot use classic compiler' problem: I've been trying Ant 1.4, and JDK 1.3.1_01, local installations iso having these reside on a SMB server: always the same problem. I do set JAVA_HOME properly, and setting CLASSPATH to tools.jar doesn't help either. Building using a minimal build file still gives me the error message. If i run 'ant -debug', i do get tools.jar in 'java.class.path'. There must be something very basic that's wrong (some other environment in this machine / ...) on this Win2k machine. tia, Sebastien. Sebastien Boving wrote: Hi, I'm having problems getting Ant 1.4.1 to work with JDK 1.4 beta3. I get the 'Cannot use classic compiler' error: [seb@ART002001] 150 # ant compile Buildfile: build.xml init: compile: [javac] Modern compiler is not available - using classic compiler [javac] Compiling 11 source files to H:\dev\java\obj BUILD FAILED H:\dev\java\build.xml:14: Cannot use classic compiler, as it is not available A common solution is to set the environment variable JAVA_HOME to your jdk directory. Total time: 3 seconds Exit 1 I looked this up in the archives, and it seems other people had this problem, but the solution was always adding tools.jar to the classpath (or setting up JAVA_HOME correctly). I however think these things are fine, and running ant in debug mode seems to confirm this: Mon 03/12/01 18:55 H:/dev/java [seb@ART002001] 151 # ant -debug compile |& less Ant version 1.4 compiled on September 3 2001 Buildfile: build.xml Setting project property: ant.java.version -> 1.4 Detected Java version: 1.4 in: s:\soft\win-ix86\j2sdk\1.4.0b3\jre Detected OS: Windows 2000 +User task: tar org.apache.tools.ant.taskdefs.Tar +User task: fail org.apache.tools.ant.taskdefs.Exit [...] Setting project property: java.specification.version -> 1.4 Setting project property: java.class.path -> s:\soft\common\ant\1.4.1\lib\optional.jar;s:\soft\common\ant\1.4.1\lib\jaxp. jar;s:\soft\common\ant\1.4.1\lib\crimson.jar;s:\soft\common\ant\1.4.1\lib\an t.jar;s:\soft\win-ix86\j2sdk\1.4.0b3\lib;s:\soft\win-ix86\j2sdk\1.4.0b3\lib\ tools.jar;s:\soft\win-ix86\j2sdk\1.4.0b3\lib\tools.jar Setting project property: user.name -> seb Setting project property: java.vm.specification.version -> 1.0 Setting project property: java.home -> s:\soft\win-ix86\j2sdk\1.4.0b3\jre [...] BUILD FAILED H:\dev\java\build.xml:14: Cannot use classic compiler, as it is not available A common solution is to set the environment variable JAVA_HOME to your jdk directory. at org.apache.tools.ant.taskdefs.compilers.Javac12.execute(Javac12.java:96) at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:530) at org.apache.tools.ant.Task.perform(Task.java:217) at org.apache.tools.ant.Target.execute(Target.java:164) at org.apache.tools.ant.Target.performTasks(Target.java:182) at org.apache.tools.ant.Project.executeTarget(Project.java:601) at org.apache.tools.ant.Project.executeTargets(Project.java:560) at org.apache.tools.ant.Main.runBuild(Main.java:454) at org.apache.tools.ant.Main.start(Main.java:153) at org.apache.tools.ant.Main.main(Main.java:176) (Note the java.class.path). This happens though: Mon 03/12/01 18:57 H:/dev/java [seb@ART002001] 152 # ls -l s:/soft/win-ix86/j2sdk/1.4.0b3/lib/tools.jar -rw-r--r-- 1 administ None 4822168 Dec 3 14:44 s:/soft/win-ix86/j2sdk/1.4.0b3/lib/tools.jar Mon 03/12/01 18:58 H:/dev/java [seb@ART002001] 154 # jar tvf s:/soft/win-ix86/j2sdk/1.4.0b3/lib/tools.jar sun/tools/javac/Main.class 13253 Sat Oct 20 01:16:08 PDT 2001 sun/tools/javac/Main.class So i don't really understand what's wrong here, unless Ant 1.4.1 has an issue with the Sun 1.4 beta 3 SDK? Any help would be appreciated! Sebastien.
