https://bugs.documentfoundation.org/show_bug.cgi?id=145526
Bug ID: 145526
Summary: NoClassDefFound Error in Java Macro when trying to
load another class
Product: LibreOffice
Version: 7.1.6.2 release
Hardware: x86-64 (AMD64)
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Description:
When I try to execute a Java Macro which loads any other class despite the one
first loaded by the URLClassLoader, I get a NoClassDefFound Error.
I searched before filing this bug if it is already here. I could not find it,
in case I overlooked it, my apologies.
Steps to Reproduce:
1. Go to <LOInstall Folder>\share\Scripts\java
2. Duplicate directory HelloWorld, e. g. to HelloWorldTest
3. Open the new directory, in there is HelloWorld.java
4. Adapt HelloWorld.java as follows:
package org.libreoffice.example.java_scripts;
import com.sun.star.script.provider.XScriptContext;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.text.XTextDocument;
import com.sun.star.text.XTextRange;
import com.sun.star.text.XText;
/**
* HelloWorld class
*
*/
public class HelloWorld {
public static void printHW(XScriptContext xSc) {
// getting the text document object
XTextDocument xtextdocument = (XTextDocument)
UnoRuntime.queryInterface(
XTextDocument.class,
xSc.getDocument());
XText xText = xtextdocument.getText();
XTextRange xTextRange = xText.getEnd();
xTextRange.setString("Hello World (in Java)");
LoadMe lm = new LoadMe(); // the actual change
xTextRange.setString("Test String: " + lm.getText());
}// printHW
}
5. create a new java class file, LoadMe.java e. g. as follows:
package org.libreoffice.example.java_scripts;
public class LoadMe {
public LoadMe() {
}
public String getText() {
return "Success";
}
}
6. Compile the java files, e. g. in a dos command window after changing to the
right path:
SET OOO=c:\progra~1\LibreOffice\program\classes
SET OOOPATH=%OOO%\juh.jar;%OOO%\jurt.jar;%OOO%\ridl.jar;%OOO%\unoil.jar
javac -cp "%OOOPATH%" LoadMe.java HelloWorld.java
7. create a new path in your current HelloWorldTest directory
all of those subfolders have to be created according to the java package name
of the created class files
org\libreoffice\example\java_scripts
8. copy the class files created by compilation to
org\libreoffice\example\java_scripts
9. Update the jar file with the new classes, e, g.:
jar -cvf HelloWorld.jar org
from the command window in the HelloWorldTest folder
If everything is done right, the parcel descriptor should still fit.
10. Now start Writer
11. Go to
Tools -> Macros -> Run Macro
12. Search the available macros HelloWorldTest in the LibreOffice list and
execute it
Actual Results:
NoClassDefFoundError. I can debug until the point LoadMe is called, so
HelloWorld is executed but LoadMe is not on the classpath.
Expected Results:
LoadMe is executed and the String in Writer changes from "Hello World (in
Java)" to "Test String: Success"
Reproducible: Always
User Profile Reset: Yes
Additional Info:
The issue seems with ScriptProviderForJava.java
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