apk签名失败问题

 在给apk签名的时候会出现如下的问题,如何解决呢?

Exception in thread "main" java.lang.UnsatisfiedLinkError: no conscrypt_openjdk_jni in java.library.path
	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1864)
	at java.lang.Runtime.loadLibrary0(Runtime.java:870)
	at java.lang.System.loadLibrary(System.java:1122)
	at org.conscrypt.NativeCryptoJni.init(NativeCryptoJni.java:25)
	at org.conscrypt.NativeCrypto.<clinit>(NativeCrypto.java:54)
	at org.conscrypt.OpenSSLBIOInputStream.<init>(OpenSSLBIOInputStream.java:34)
	at org.conscrypt.OpenSSLX509Certificate.fromX509PemInputStream(OpenSSLX509Certificate.java:119)
	at org.conscrypt.OpenSSLX509CertificateFactory$1.fromX509PemInputStream(OpenSSLX509CertificateFactory.java:220)
	at org.conscrypt.OpenSSLX509CertificateFactory$1.fromX509PemInputStream(OpenSSLX509CertificateFactory.java:216)
	at org.conscrypt.OpenSSLX509CertificateFactory$Parser.generateItem(OpenSSLX509CertificateFactory.java:94)
	at org.conscrypt.OpenSSLX509CertificateFactory.engineGenerateCertificate(OpenSSLX509CertificateFactory.java:272)
	at java.security.cert.CertificateFactory.generateCertificate(CertificateFactory.java:339)
	at com.android.signapk.SignApk.readPublicKey(SignApk.java:182)
	at com.android.signapk.SignApk.main(SignApk.java:1087)

解决方案:

    1,复制 libconscrypt_openjdk_jni.so  into 到当前路径下
    2,复制 signapk.jar into 到当前路径下
    3,然后执行如下命令给apk重新签名java -jar -Djava.library.path=. signapk.jar platform.x509.pem platform.pk8 xxx.apk signed-xxx.apk