Subject: NullPointerException thown by javac in J2SE 1.5.0-b32
Date: Thu, 08 Jan 2004 05:29:10 +0000
From: <###@###.###>
To: ###@###.###

CAP Bug Submission Form
Please fill out the following as completely as possible and email to
###@###.###. Please also include any source code or class files
required to reproduce the bug.


Your Name: Mark Mahieu



J2SE Version (please include all output from java -version flag):

java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b32)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b32, mixed mode)

Does this problem occur on J2SE 1.4 or 1.4.1 or 1.4.2? Yes / No (pick one)

No

Operating System Configuration Information (be specific):

Windows 2000 Professional (Service Pack 2)
RedHat 9.0

Hardware Configuration Information (be specific):

AMD Athlon 600Mhz, 384MB, TNT2 32MB AGP graphics

Bug Description:

Attempting to cross-compile a class as described in the javac tool docs
for 1.4.2, using options
  -source 1.5
  -target 1.4
  -bootclasspath <location of the rt.jar from a 1.4 SDK installation>
  -extdirs ""
causes javac to throw a NullPointerException



Steps to Reproduce (be specific):

1) Create Dummy.java with the following content:

    class Dummy { }

2) Compile Dummy.java eg:

    javac -source 1.5 -target 1.4 -bootclasspath
c:\dev\tools\j2sdk1.4.2\jre\lib\rt.jar -extdirs "" Dummy.java

3) Watch the stack trace scroll by :

An exception has occurred in the compiler (1.5.0-beta). Please file a
bug at the
 Java Developer Connection (http://java.sun.com/cgi-bin/bugreport.cgi)
after ch
ecking the Bug Parade for duplicates. Include your program and the
following dia
gnostic in your report. Thank you.
java.lang.NullPointerException
        at com.sun.tools.javac.comp.Lower.visitApply(Lower.java:2209)
        at com.sun.tools.javac.tree.Tree$Apply.accept(Tree.java:814)
        at com.sun.tools.javac.comp.Lower.translate(Lower.java:1731)
        at
com.sun.tools.javac.tree.TreeTranslator.visitExec(TreeTranslator.java:224)
        at com.sun.tools.javac.tree.Tree$Exec.accept(Tree.java:731)
        at com.sun.tools.javac.comp.Lower.translate(Lower.java:1731)
        at
com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:51)
        at
com.sun.tools.javac.tree.TreeTranslator.visitBlock(TreeTranslator.java:142)
        at com.sun.tools.javac.comp.Lower.visitBlock(Lower.java:2705)
        at com.sun.tools.javac.tree.Tree$Block.accept(Tree.java:537)
        at com.sun.tools.javac.comp.Lower.translate(Lower.java:1731)
        at
com.sun.tools.javac.tree.TreeTranslator.visitMethodDef(TreeTranslator.java:126)
        at
com.sun.tools.javac.comp.Lower.visitMethodDefInternal(Lower.java:2057)
        at com.sun.tools.javac.comp.Lower.visitMethodDef(Lower.java:1976)
        at com.sun.tools.javac.tree.Tree$MethodDef.accept(Tree.java:479)
        at com.sun.tools.javac.comp.Lower.translate(Lower.java:1731)
        at com.sun.tools.javac.comp.Lower.visitClassDef(Lower.java:1804)
        at com.sun.tools.javac.tree.Tree$ClassDef.accept(Tree.java:435)
        at com.sun.tools.javac.comp.Lower.translate(Lower.java:1731)
        at com.sun.tools.javac.comp.Lower.translate(Lower.java:1751)
        at
com.sun.tools.javac.comp.Lower.translateTopLevelClass(Lower.java:2813)
        at
com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:452)
        at com.sun.tools.javac.main.Main.compile(Main.java:584)
        at com.sun.tools.javac.main.Main.compile(Main.java:536)
        at com.sun.tools.javac.Main.compile(Main.java:41)
        at com.sun.tools.javac.Main.main(Main.java:32)