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List:       xalan-dev
Subject:    [jira] Created: (XALANJ-2403) EnvironmentCheck.checkEnvironment
From:       "Torok Edwin (JIRA)" <xalan-dev () xml ! apache ! org>
Date:       2007-09-28 11:28:50
Message-ID: 2940883.1190978930973.JavaMail.jira () brutus
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EnvironmentCheck.checkEnvironment throws exception when Ant is not present
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                 Key: XALANJ-2403
                 URL: https://issues.apache.org/jira/browse/XALANJ-2403
             Project: XalanJ2
          Issue Type: Bug
          Components: Xalan
    Affects Versions: 2.7
         Environment: Linux edwin-t-new 2.6.22.1-cfs-v19 #1 SMP PREEMPT Tue Jul 17 \
12:46:51 EEST 2007 i686 GNU/Linux java version "1.6.0_02"
Java(TM) SE Runtime Environment (build 1.6.0_02-b05)
Java HotSpot(TM) Client VM (build 1.6.0_02-b05, mixed mode, sharing)
            Reporter: Torok Edwin
            Priority: Trivial


boolean environmentOK = (new EnvironmentCheck()).checkEnvironment (new \
PrintWriter(System.err));

Exception in thread "main" java.lang.NoClassDefFoundError: \
org/apache/tools/ant/launch/AntMain  at java.lang.ClassLoader.defineClass1(Native \
Method)  at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
	at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
	at org.apache.xalan.xslt.ObjectFactory.findProviderClass(ObjectFactory.java:506)
	at org.apache.xalan.xslt.EnvironmentCheck.checkAntVersion(EnvironmentCheck.java:994)
	at org.apache.xalan.xslt.EnvironmentCheck.getEnvironmentHash(EnvironmentCheck.java:224)
  at org.apache.xalan.xslt.EnvironmentCheck.checkEnvironment(EnvironmentCheck.java:167)


Problem is that in Environmentcheck.java (even in latest SVN version), there is a \
try/catch block for Exception. But NoClassDefFoundError is an Error, not Exception.

To fix this Throwable should be catched, instead of exception.

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