#517 AccountDeleteIT (#568)

* create new test file for account delete
* create test for tecTOO_SOON case
* create test for temDST_IS_SRC case
* create test for tecDST_TAG_NEEDED use case
* create test for tecNO_DST use case
* create use case for tecNO_PERMISSION use case
* create test for tecHAS_OBLIGATIONS use case
* use xrplAdminClient to accept ledger instead of submitting txs
* address checkstyle issues
* change position of @DisabledIf

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Co-authored-by: Angel Gutierrez <[email protected]>

xrpl4j-integration-tests/src/test/java/org/xrpl/xrpl4j/tests/AbstractIT.java

@@ -703,6 +703,26 @@ private KeyStore loadKeyStore() {
     return JavaKeystoreLoader.loadFromClasspath(jksFileName, jksPassword);
   }
 
+  /**
+   * Returns the minimum time that can be used for escrow expirations. The ledger will not accept an expiration time
+   * that is earlier than the last ledger close time, so we must use the latter of current time or ledger close time
+   * (which for unexplained reasons can sometimes be later than now).
+   *
+   * @return An {@link Instant}.
+   */
+  protected Instant getMinExpirationTime() {
+    LedgerResult result = getValidatedLedger();
+    Instant closeTime = xrpTimestampToInstant(
+        result.ledger().closeTime()
+            .orElseThrow(() ->
+                new RuntimeException("Ledger close time must be present to calculate a minimum expiration time.")
+            )
+    );
+
+    Instant now = Instant.now();
+    return closeTime.isBefore(now) ? now : closeTime;
+  }
+
   private void logAccountCreation(Address address) {
     logger.info("Generated wallet with ClassicAddress={})", address);
   }