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Prevent NPE

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(cherry picked from commit 5f2cc2f49f8f043c28056411f945250ed90a39b2)
This commit is contained in:
Sebastian Sieber
2022-12-06 11:42:07 +01:00
parent 17cfe14711
commit 7d07db82ec
1 changed files with 10 additions and 10 deletions
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20
library/src/main/java/org/mustangproject/XMLTools.java
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@@ -1,22 +1,19 @@
package org.mustangproject;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.dom4j.io.XMLWriter;
import org.mustangproject.ZUGFeRD.ZUGFeRD2PullProvider;
public class XMLTools extends XMLWriter {
public String escapeAttributeEntities(String s) {
@Override
public String escapeAttributeEntities(String s) {
return super.escapeAttributeEntities(s);
}
public String escapeElementEntities(String s) {
@Override
public String escapeElementEntities(String s) {
return super.escapeElementEntities(s);
}
@@ -44,8 +41,11 @@ public class XMLTools extends XMLWriter {
public static String encodeXML(CharSequence s) {
StringBuilder sb = new StringBuilder();
int len = s.length();
if (s == null) {
return "";
}
final StringBuilder sb = new StringBuilder();
final int len = s.length();
for (int i = 0; i < len; i++) {
int c = s.charAt(i);
if (c >= 0xd800 && c <= 0xdbff && i + 1 < len) {
@@ -126,7 +126,7 @@ public class XMLTools extends XMLWriter {
* @return the byte array without bom
*/
public static byte[] removeBOM(byte[] zugferdRaw) {
byte[] zugferdData;
final byte[] zugferdData;
if ((zugferdRaw[0] == (byte) 0xEF) && (zugferdRaw[1] == (byte) 0xBB) && (zugferdRaw[2] == (byte) 0xBF)) {
// I don't like BOMs, lets remove it
zugferdData = new byte[zugferdRaw.length - 3];