All in a sudden my Java application using SimpleDB doesn't work anymore. I'm using Java AWS SDK version 1.2.4 on Windows 7. I've the following exception:
java.security.KeyStoreException: problem accessing trust storejava.io.IOException: Invalid keystore format
com.sun.net.ssl.internal.ssl.TrustManagerFactoryImpl.engineInit(TrustManagerFactoryImpl.java:55)
javax.net.ssl.TrustManagerFactory.init(TrustManagerFactory.java:230)
org.apache.http.conn.ssl.SSLSocketFactory.createSSLContext(SSLSocketFactory.java:190)
org.apache.http.conn.ssl.SSLSocketFactory.createDefaultSSLContext(SSLSocketFactory.java:209)
org.apache.http.conn.ssl.SSLSocketFactory.<init>(SSLSocketFactory.java:333)
org.apache.http.conn.ssl.SSLSocketFactory.getSocketFactory(SSLSocketFactory.java:165)
org.apache.http.impl.conn.SchemeRegistryFactory.createDefault(SchemeRegistryFactory.java:45)
org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager.<init>(ThreadSafeClientConnManager.java:98)
com.amazonaws.http.HttpClientFactory.createHttpClient(HttpClientFactory.java:67)
com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:111)
com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:59)
com.amazonaws.services.simpledb.AmazonSimpleDBClient.<init>(AmazonSimpleDBClient.java:118)
What could the cause be and how to solve the problem?