Hi, We are trying to compile the Apache POI 4.1.0 source code on the windows 10 machine and i am getting the following error. Please help
fetch-ooxml-xsds: [get] Destination already exists (skipping): D:\Softwares\poi-src-4.1.0-20190412\poi-4.1.0\ooxml-lib\OfficeOpenXML-Part4.zip [get] Destination already exists (skipping): D:\Softwares\poi-src-4.1.0-20190412\poi-4.1.0\ooxml-lib\OfficeOpenXML-Part2.zip [get] Getting: https://www.w3.org/TR/2002/REC-xmldsig-core-20020212/xmldsig-core-schema.xsd [get] To: D:\Softwares\poi-src-4.1.0-20190412\poi-4.1.0\ooxml-lib\xmldsig-core-schema.xsd [get] Error getting https://www.w3.org/TR/2002/REC-xmldsig-core-20020212/xmldsig-core-schema.xsd to D:\Softwares\poi-src-4.1.0-20190412\poi-4.1.0\ooxml-lib\xmldsig-core-schema.xsd *BUILD FAILEDD:\Softwares\poi-src-4.1.0-20190412\poi-4.1.0\build.xml:890: javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty* at java.base/sun.security.ssl.Alerts.getSSLException(Alerts.java:214) at java.base/sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1974) at java.base/sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1926) at java.base/sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1909) at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1436) at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413) at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:567) at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:163) at org.apache.tools.ant.taskdefs.Get$GetThread.openConnection(Get.java:728) at org.apache.tools.ant.taskdefs.Get$GetThread.get(Get.java:641) at org.apache.tools.ant.taskdefs.Get$GetThread.run(Get.java:631) Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty Any help is appreciated on how to build this version. The build command is as per the README.txt and the command is* ant jar* -- with regards sharath