Ubuntu 17.10 Java 8证书错误
我有一个全新安装的Ubuntu 17.10，我在其上安装了包oracle-java8-installer（来自PPA）。
但是当我尝试使用“ionic cordova build android”编译一个离子项目时，它会抛出这个错误：
Exception in thread "main" javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty at sun.security.ssl.Alerts.getSSLException(Alerts.java:208) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1959) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1916) at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1899) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1420) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397) at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263) at org.gradle.wrapper.Download.downloadInternal(Download.java:60) at org.gradle.wrapper.Download.download(Download.java:45) at org.gradle.wrapper.Install$1.call(Install.java:62) at org.gradle.wrapper.Install$1.call(Install.java:48) at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69) at org.gradle.wrapper.Install.createDist(Install.java:48) at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107) at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61) Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty at sun.security.validator.PKIXValidator.(PKIXValidator.java:91) at sun.security.validator.Validator.getInstance(Validator.java:179) at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:312) at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:171) at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:184) at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1496) at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1026) at sun.security.ssl.Handshaker.process_record(Handshaker.java:961) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413) ... 14 more Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty at java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200) at java.security.cert.PKIXParameters.(PKIXParameters.java:120) at java.security.cert.PKIXBuilderParameters. (PKIXBuilderParameters.java:104) at sun.security.validator.PKIXValidator.(PKIXValidator.java:89) ... 26 more 我连接到互联网，我试图：
$ sudo update-ca-certificates -f $ sudo apt install --reinstall ca-certificates-java
…并重新安装npm，ionic，java和gradle，但都没有成功。
编辑：我还在.bashrc中导出了ANDROID_HOME和JAVA_HOME，并安装了Android Studio。 我试图在不同的机器上构建项目，它工作正常。 我无法尝试使用OpenJDK，因为它与Android Studio不兼容。
尝试
sudo dpkg --purge --force-depends ca-certificates-java
其次是
sudo apt-get install ca-certificates-java
得到破碎的cacerts修复。
对我来说，这解决了它。
祝好运！