Bug 20644 [hovering] Javadoc hover cannot handle link tag
org.eclipse.jdt.text.tests/src/org/eclipse/jdt/text/tests/JavaDoc2HTMLTextReaderTester.java
return fStringBuffer.toString().substring(offset, offset + length);
	}
	public IResource getUnderlyingResource() {
		return null;
	}
	public boolean hasUnsavedChanges() {
		return false;
	}
	public boolean isClosed() {
		return false;
	}
	public boolean isReadOnly() {
		return false;
	}
	public void removeBufferChangedListener(IBufferChangedListener listener) {
	}
	public void replace(int position, int length, char[] text) {
	}
	public void replace(int position, int length, String text) {
	}
	public void save(IProgressMonitor progress, boolean force)
		throws JavaModelException {
	}
	public void setContents(char[] contents) {
	}
	public void setContents(String contents) {
		fStringBuffer= new StringBuffer(contents);
	}
}