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#859 NullPointerException when trying to located missing files
When source files are moved behind a running instance of DrJava and a 'find all' is used to search all documents, a dialog pops up saying that the files can't be found. If you select 'Yes' to find a file, the file chooser pops up and a NullPointerException is thrown.
Was found while working on Feature Request 2977070 - 'Option to abort failing global...', but is not a result of those changes. This bug is present in the latest beta, 20100415-r5220.
The stack trace is extremely short and I couldn't figure out what was going on; it is attached.
Note: this error does not interrupt the process of choosing a file. It's just annoying.
strack trace for bug
Posting the stack trace from the attached file. This smells like a Swing bug to me.
java.lang.NullPointerException
at javax.swing.filechooser.FileSystemView.getFiles(FileSystemView.java:422)
at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run(BasicDirectoryModel.java:211)
System Properties:
DrJava Version drjava-20090323-r4836
DrJava Build Time 20090323-1937
drjava.debug.port = 39866
java.runtime.name = Java(TM) 2 Runtime Environment, Standard Edition
sun.boot.library.path = /home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/i386
java.vm.version = 1.5.0_14-b03
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = :
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = US
sun.os.patch.level = unknown
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.home>
java.runtime.version = 1.5.0_14-b03
java.awt.graphicsenv = sun.awt.X11GraphicsEnvironment
java.endorsed.dirs = /home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/endorsed
os.arch = i386
java.io.tmpdir = /tmp
line.separator = "\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
os.name = Linux
sun.jnu.encoding = ANSI_X3.4-1968
java.library.path = /home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/i386/client:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/i386:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/../lib/i386:/home/javaplt/packages/yjp-6.0.11/bin/linux-x86-32
java.specification.name = Java Platform API Specification
java.class.version = 49.0
sun.management.compiler = HotSpot Client Compiler
os.version = 2.6.18-194.el5
user.home = <anonymized user.home>
user.timezone = America/Chicago
java.awt.printerjob = sun.print.PSPrinterJob
file.encoding = ANSI_X3.4-1968
java.specification.version = 1.5
java.class.path = drjava.jar
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = /home/javaplt/java/Linux-i686/jdk1.5.0_14/jre
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
java.vm.info = mixed mode, sharing
java.version = 1.5.0_14
java.ext.dirs = /home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/ext
sun.boot.class.path = /home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/rt.jar:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/i18n.jar:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/sunrsasign.jar:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/jsse.jar:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/jce.jar:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/lib/charsets.jar:/home/javaplt/java/Linux-i686/jdk1.5.0_14/jre/classes
java.vendor = Sun Microsystems Inc.
file.separator = /
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = gnome
sun.cpu.isalist =
#DrJava configuration file
#Wed May 05 11:29:26 CDT 2010
key.delete.next = shift DELETE
key.delete.previous = shift BACK_SPACE
find.replace.all.documents = true
last.dir = <anonymized user.home>/OldComp/HW07/src/listFW
last.interactions.dir = <anonymized user.home>/OldComp/HW07
new.version.notification.last = 1273076943430
Used memory: about 7.37 megabytes
Free memory: about 1.09 megabytes
Total memory: about 8.45 megabytes
Total memory can expand to: about 63.56 megabytes
I'm fairly certain this is a Swing bug. There have been other bugs with this stack trace element:
javax.swing.filechooser.FileSystemView.getFiles(FileSystemView.java:422)