woggioni/envelope
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bugfix

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manifest retrieval is unreliable when multiple manifests files are on the classpath
This commit is contained in:
Walter Oggioni
2022-02-02 20:03:39 +08:00
parent fafbf178b1
commit ae7ed05ad5
1 changed files with 15 additions and 1 deletions
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16
launcher/src/main/java/net/woggioni/envelope/Launcher.java
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@@ -14,6 +14,7 @@ import java.nio.file.Path;
import java.nio.file.Paths; import java.nio.file.Paths;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Collections; import java.util.Collections;
import java.util.Enumeration;
import java.util.List; import java.util.List;
import java.util.Objects; import java.util.Objects;
import java.util.function.Function; import java.util.function.Function;
@@ -41,7 +42,20 @@ public class Launcher {
@SneakyThrows @SneakyThrows
public static void main(String[] args) { public static void main(String[] args) {
URI currentJar = findCurrentJar(); URI currentJar = findCurrentJar();
URL manifestResource = Launcher.class.getResource("/" + JarFile.MANIFEST_NAME); String currentJarPath = currentJar.getPath();
URL manifestResource = null;
Enumeration<URL> enumeration = Launcher.class.getClassLoader().getResources(JarFile.MANIFEST_NAME);
while(enumeration.hasMoreElements()) {
URL candidate = enumeration.nextElement();
URL subUrl = new URL(candidate.getFile());
String candidatePath = subUrl.getPath();
int i = candidatePath.indexOf("!/");
candidatePath = candidatePath.substring(0, i);
if(Objects.equals(currentJarPath, candidatePath)) {
manifestResource = candidate;
break;
}
}
if(Objects.isNull(manifestResource)) { if(Objects.isNull(manifestResource)) {
throw new RuntimeException("Launcher manifest not found"); throw new RuntimeException("Launcher manifest not found");
} }